Page 1
Storage Hub 12 Management
Utilities
Hardware and Software User Guide
First Edition (October 1999)
Part Number 158561-001
Compaq Computer Corporation
Page 2
Notice
The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR
USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED “AS IS” AND COMPAQ
COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST
INFRINGEMENT.
This publication contains information protected by copyright. No part of this publ ication may be
photocopied or reproduced in any form without prior written consent from Compaq Computer
Corporation.
© 1999 Compaq Com puter Corporation.
All rights reserved. Printed in the U.S.A.
The software described in thi s guide is furnished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accor dance with the terms of the agreement.
Compaq, Deskpro, Compaq Insight Manager, Systempro, Systempro/LT, ProLiant, ROMPaq, QVision,
SmartStart, NetF lex, QuickFind, PaqFax, Prosignia, registered Uni ted States Patent and T r ademark
Office.
Fastart, Netelligent, Systempro/XL, SoftPaq, QuickBlank, QuickLock are trademarks and/or service
marks of Compaq Computer Corporation.
NeoServer is a trademark of Compaq Information Technology Group.
Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other product names mentioned herein may be t r ademarks and/or regist ered trademarks of thei r
respective companies.
Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
First Edition (October 1999)
Part Number 158561-001
Page 3
Contents
About This Guide
Text Conventions........................................................................................................ix
Symbols in Text...........................................................................................................x
Symbols on Equipment................................................................................................x
Getting Help ...............................................................................................................xi
Compaq Technical Support.................................................................................xi
Compaq Website.................................................................................................xii
Compaq Authorized Reseller..............................................................................xii
Chapter 1
Getting Started
Overview ................................................................................................................. 1-1
Installation............................................................................................................... 1-2
Hardware Requirements .......................................................................................... 1-2
Software Requirements............................................................................................ 1-2
Installation Procedure.............................................................................................. 1-3
If you are installing HMU for the first time...................................................... 1-3
Configuring HMU for Your Site.............................................................................. 1-4
About HMU.log....................................................................................................... 1-4
About HMU.dat....................................................................................................... 1-4
Understanding Port Relationships............................................................................ 1-5
Inter-Hub Communication Interface (ICI) ID Numbers................................... 1-5
Downlink and Uplink Ports.............................................................................. 1-5
Initial HMU Startup................................................................................................. 1-6
Subsequent HMU Startup........................................................................................ 1-9
Help and Information Resources ........................................................................... 1-10
Device View Information screen.................................................................... 1-12
Page 4
iv Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Chapter 2
Managing from Hub 12 Management Utilities GUI Menu Screen
SAN View Tab......................................................................................................... 2-3
The Context Menu ................................................................................................... 2-4
Display Device View...............................................................................................2-6
Display Network View.............................................................................................2-6
Network Status Tab ..........................................................................................2-6
Network Traffic Tab......................................................................................... 2-7
Source/Destination Pairs...................................................................................2-9
Primitives................................................................................................................. 2-9
SNMP Configuration............................................................................................. 2-12
Trap Management Station IP Address............................................................2-13
Diagnostic Tools.................................................................................................... 2-13
Loop Up Wait Time (msec)............................................................................ 2-14
Loop Initialization Diagnostic ........................................................................ 2-15
Broadcast Storm Diagnostic ........................................................................... 2-16
Discover Proxied Devices......................................................................................2-17
Multiple SAN Discovery ................................................................................ 2-19
Add Device............................................................................................................ 2-19
Delete Proxy or Device.......................................................................................... 2-21
Properties............................................................................................................... 2-21
Managed Device Properties................................................................................... 2-22
Save Topological Data........................................................................................... 2-23
Clear A Fault.......................................................................................................... 2-23
File Menu............................................................................................................... 2-23
HMU.log File.................................................................................................. 2-24
SNMP Defaults............................................................................................... 2-26
Save Topological Data.................................................................................... 2-27
Clear An Event Page....................................................................................... 2-27
Exit..................................................................................................................2-27
View The Current Event Log..........................................................................2-27
Open The HMU.log File........................................................................................ 2-28
HELP ..................................................................................................................... 2-29
Check The HMU Version............................................................................... 2-29
Chapter 3
Managing from Device View
Device View.............................................................................................................3-1
Information on Device View.............................................................................3-2
Displaying the Expanded Device View............................................................3-2
Displaying the Physical Device View............................................................... 3-2
The Device View Management Tabs................................................................ 3-2
The System ID Tab........................................................................................... 3-3
The Environment Tab..............................................................................................3-3
The Port Tab ............................................................................................................ 3-4
Page 5
Managing from Device View
continued
The Service Tab ....................................................................................................... 3-5
Port Properties ......................................................................................................... 3-6
General Port Properties..................................................................................... 3-6
Configuration Port Properties........................................................................... 3-6
LIP Generation ................................................................................................. 3-8
Device View Quick Access Features....................................................................... 3-8
Display Device Details..................................................................................... 3-8
Right clicking on a Port.................................................................................... 3-8
Check Managed Device Serial Numbers.......................................................... 3-9
Show Device Properties.................................................................................... 3-9
Change Device Location and Contact .............................................................. 3-9
Check Power, Thermal, and Up Time.............................................................. 3-9
Set/Cancel Port Bypass Control for the hub..................................................... 3-9
Show Port Properties...................................................................................... 3-10
Verify Port Status........................................................................................... 3-10
Check Firmware Versions.............................................................................. 3-10
Set Temperature Fault Threshold ................................................................... 3-11
Set Beacon Control......................................................................................... 3-11
Download Firmware....................................................................................... 3-11
Refresh Data................................................................................................... 3-11
Check the HMU Version................................................................................ 3-11
Close the Device View................................................................................... 3-12
Shutdown HMU.............................................................................................. 3-12
About This Guide v
Chapter 4
Troubleshooting
Startup Problem....................................................................................................... 4-1
Fibre Channel Topological Discovery Failure......................................................... 4-2
Icon Turns Red or Status Word Changes................................................................. 4-3
Continuous LIPs...................................................................................................... 4-4
Ping a Device........................................................................................................... 4-4
Error Messages........................................................................................................ 4-5
Appendix A
Network Management Overview
Compaq Storage Hub 12 Management Module (HMM).........................................A-1
Storage Area Network Management........................................................................A-2
Managed Devices .............................................................................................A-2
Proxy Master............................................................................................................A-3
Simple Network Management Protocol (SNMP) ....................................................A-4
Set Community Names in SNMP............................................................................A-4
Page 6
vi Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Network Management Overview
continued
Fibre Channel Arbitrated Loop Protocol (F C-AL) and Loo p Initialization
Primitive (LIP)........................................................................................................ A-5
Appendix B
Upgrading the Firmware
Installing the Management Module .........................................................................B-1
Finding the Firmware Version Numbers..................................................................B-2
Downloading Device Agent Firmware ....................................................................B-2
Downloading Hub Controller Firmware..................................................................B-3
Appendix C
Configuring the Management Module
The Management Module’s Password.....................................................................C-2
Setting Network Parameters.....................................................................................C-2
Management Options...............................................................................................C-5
A word about Simple Network Management Protocol (SNMP).......................C-5
Managing with Compaq Storage Hub 12 Management Utilities (HMU) SAN
Manager...................................................................................................................C-6
Changing Management Options...............................................................................C-6
Obtaining Hub Information......................................................................................C-8
Logout......................................................................................................................C-8
Diagnostic Tools......................................................................................................C-8
Starting Compaq Storage Hub 12 Operation ....................................................C-9
Appendix D
Troubleshooting the Management Module
Serial Communication Problems.............................................................................D-1
Fibre Channel Connections..................................................................................... D-1
Error Messages........................................................................................................D-2
Appendix E
Regulatory Compliance Notices
Communications Commission Notice......................................................................E-1
Class A Equipment...................................................................................................E-1
Class B Equipment...................................................................................................E-2
Declaration of Conformity for products marked with the FCC logo -
United States only.............................................................................................E-2
Modifications....................................................................................................E-3
Cables ...............................................................................................................E-3
Page 7
About This Guide vii
Regulatory Compliance Notices
continued
Canadian Notice (Avis Canadien)...........................................................................E-3
Class A Equipment...........................................................................................E-3
Class B Equipment...........................................................................................E-4
European Union Notice...........................................................................................E-4
Japanese Notice.......................................................................................................E-4
Taiwanese Notice.....................................................................................................E-5
Battery Replacement Notice....................................................................................E-5
Laser Compliance....................................................................................................E-5
Power Cords............................................................................................................E-6
Appendix F
Electrostatic Discharge
Grounding Methods.................................................................................................K-2
Index
Page 8
This guide is designed to be used as step-by-step instructions for installation
and as a reference for operation, troubleshooting, and future upgrades.
Text Conventions
This document uses the following conventions to disti nguish elements of text:
Keys Keys appear in boldface. A plus sign (+) between
USER INPUT User input appears in a different typeface and in
FILENAMES File names appear in uppercase italics.
About This Guide
two keys indicates that they should be pressed
simultaneou sly.
uppercase.
Menu Options,
Command Names,
Dialog Box Names
Commands These elements appear in bold.
DIRECTORY NAMES
and DRIVE NAMES
Type When you are instructed to type information, type
Enter When you are instructed to enter informatio n, type
These elements appear in initial capital letters.
These elements appear in uppercase.
the information without pressing the Enter key.
the informat ion and then press the Enter key.
Page 9
ix Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Text set off in this manner indicates that failure to follow directions
in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions
could result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific
instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of
information.
Symbols on Equipment
These icons may be located on equipment in areas where hazardous conditions
may exist.
Any surface or area of the equipment marked with these symbols
indicates the presence of electrical shock hazards. Enclosed area
contains no operator serviceable parts.
WARNING: To reduce the risk of injury from electrical shock hazards,
do not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors
into this receptacle.
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow
the surface to cool before touching.
Page 10
Getting Help
If you have a problem and ha ve exhausted the information in this guide, you
can get further information and othe r help in the following locations.
Compaq Technical Support
You are entitled to free hardware technical telephone support for your product
for as long you own the product. A technical support speci alist will help you
diagnose the problem or guide you to the next step in the warranty process.
About This Guide x
In North America, call the Compaq Technical Phone Support Center at
1-800-OK-COMPAQ
1
. This service is available 24 hours a day, 7 days a week.
Outside North America, call the nearest Compaq Technical Support Phone
Center. Telephone numbe rs for world wide Technical Support Centers are
listed on the Compaq website. Access the Compaq website on the Internet at
http://www.compaq.com.
Be sure to have the following informati on available before you call Compaq:
■ Technical support registration number (if a ppl icable)
■ Product serial number(s)
■ Product model name(s) and numbers(s)
■ Applicable error messages
■ Add-on boards or hardware
■ Third-party hardware or soft wa re
■ Operating system type and revision level
■ Detailed, specific questions
1
For continuous quality improvement, calls may be recorded or monitored.
Page 11
xi Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Compaq Website
The Compaq website has information on this product as well as the latest
drivers and Flash ROM images. You can access the Compaq website on the
Internet at http://www.compaq.com.
Compaq Authorized Reseller
For the name of your nea rest Compaq Authorized Reseller:
■ In the United States, ca ll 1-800-345-1518.
■ In Canada, call 1-800-263-5868.
■ Elsewhere, see the Compaq website for locations and telephone
numbers.
Page 12
Overview
Chapter
Getting Started
This guide provides specific information for installing the Compaq Storage
Hub 12 Management Utilities (HMU) and configuring your management
module(s). For information on installing the Compaq Storage Hub 12
Management Module (HMM), refer to the Compaq Storage Hub 12
Management Module installation instructions included in your user
documentat ion.
WARNING: To reduce the risk of personal injury or damage to the equipment,
refer to the user documents supplied with the server and observe the
appropriate safety precautions.
1
Organization of this Guide
For Information About See
Installing the Hub Management Utilities Chapter 1
Managing the HMU menu screen Chapter 2
Managing from the Device View screen Chapter 3
Troubleshooting the Management Utilities Chapter 4
Network Management overview Appendix A
continued
Page 13
1-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Organization of this Guide
For Information About See
Upgrading the management module firmware Appendix B
Configuring the management module Appendix C
Troubleshooting the management module Appendix D
Installation
Before Compaq Storage Hub 12 Management Utilities can communicate with
Compaq-ma naged devices, all devices must be properly configured,
connected, and powered up. Refer to the Compaq Storage Hub 12
Management Module instal l ation instructions to configure the modul e for
management. Once the pr ocedures have been completed, verify that the
hardware and software requirements (listed below) are met, and then perform
the HMU installation procedure
Hardware Requirements
The following hardware i s required to communicate w i th HMU:
■ At least one Compaq Storage Hub 12 hub with a module
continued
.
■ A 32-bit PC c apable of running Windows 95, Windows 98 or Windows
NT 4.0
■ An Ethernet connection from the management PC to the managed
device. This can be throu gh an Ethernet hub or switch r unning 10
Base T
IMPORTANT: While it may be possible to run HMU on a system that is also a server, we
do not recommend that you do so; it is possible for the two applications to interfere with
each other. Run HMU on its own dedicated workstation.
Page 14
Software Requirements
The following software is required to install and run HMU:
■ Windows 95, Windows 98 or Windows NT installed on the 32-bi t PC
that will serve as the management console. Service Pack level 3 (or
higher) is re quired on Windows NT 4.0.
IMPORTANT: If the program is running under Windows 95, you should have a version of
COMCTL32.DLL no older than 5/19/97 and you should have winsock2.dll installed. Earlier
versions do not contain support for the common controls that are used in HMU. These
updates are available from the Microsoft support area at www.microsoft.com.
■ The HMU Installation CD-ROM
Installation Procedure
The steps listed below should be followed when installing HMU.
If you are installing HMU for the first time
Check that the display settings for your m onitor are for small fonts. You
1.
do this by clicking the Windows Start button and selecting Set t ing s,
then Control Panel.
Getting Started 1-3
Next click the Display icon and c lick the Settings tab. Finally, click on
2.
the Advanced button. The font size is shown on the General tab of the
advanced fe atures. Select Small Fonts if this setting is not selected.
Close other W indows programs that may be r unning on the PC.
3.
Insert the HMU CD-ROM. (If your CD-ROM has auto-run enabled, and
4.
the HMU setup dialog box appears, click the close button and continue
following the steps below) .
From the Start button, select Settings, Control Panel.
5.
Open Add/Remove Programs.
6.
Click the Install butto n.
7.
Follow the onscreen instructions that will execute the SETUP.EXE file.
8.
You must acknowledge the license agreement. The application will be
installed in “C:\Program Files\Compaq \HMU” by default, unless a
different path is given.
Page 15
1-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
NOTE: If you see a "Read Only File Detected" message during the installation process,
answer "Yes."
In addition, an Acrobat PDF version of this guide will be installed in the same
directory as the HMU softwar e. To load the PDF file, you must have a copy of
the Acrobat Exchange program. If you do not already have this program on
your system, i t can be obtained from Adobe from their website:
When successfully installed, the Compaq icon will appear in your Program
list.
NOTE: Right-click HMU.exe and select Create Shortcut to create a shortcut that
displays on your desktop.
Configuring HMU for Your Site
Before starting HMU installation:
■ A Compaq-managed proxy master must be connected to your Ethernet
network.
■ The Compaq Hub 12 Management Module must be installed in the
Compaq Storage Hub 12 Hu b.
www.adobe.com.
■ The Compaq e quipment chosen to be a proxy master must be connected
to the LAN with an Ethernet connection, and must have proxy master
set in its network parameters.
About HMU.log
Event information is displayed during each HMU session and is saved in
HMU.log on shutdown. By default, the path to HMU.log is “C:\Program
Files\Compaq\HMU\HMU.log,” or an alter native path if one was named during installation. In addition, a different path can be specified using the Log
File Config uration dialog box. This path is stored in t he Window 95/98 or NT
system registry. The file’s location can not be moved wi thout first removing
and reinstal ling HMU.
You can configure HMU to overwrite a single log file at the start of each
session or to write a file to the limit size and then create another log. If the
HMU.log file is deleted, a new one will be created the next time HMU is
started. You can also view the HMU.log file from a spreadsheet program such
as Microsoft Excel since that program uses the comma-separated-variable
(csv) format.
Page 16
About HMU.dat
The topological data for a HMU session is stored in an archive file fou nd on
the default path, “C:\Program Files\Compaq\HMU\HMU.dat”, or at an
alternative path if one was entered during installation. The IP address for the
proxy management agent for each loop and the user-entered data for
unmanaged devices are always written to this file whenever HMU is shut
down, or when the Save Topological Data command is selected. When HMU
is started the next time, this data is retrieved from the
discovery can be performed automatically on each IP address in the file. Once
all loops have been discove red, the unmanaged devices for the loops are added
to the views.
NOTE: Keep the HMU.dat file backed up if more than one loop is being managed in the
event unmanaged devices are added to a hub. Data can be saved at any time.
Understanding Port Relationships
The relationship between the ports in HMU is an essential part of the
configurat i on process. The following sections detail the proper wa y to
configure the ports.
Getting Started 1-5
HMU.dat file and
Inter-Hub Communication Interface (ICI) ID
Numbers
As explained in Appendix A (see the “Sim ple Network Management Protocol”
section), while HMU may communicate with the proxy master through SNMP
over Ethernet, the proxy master communi cates with its slave-managed devices
using the Compaq ICI communications pr otocol. As a result, the various
devices are assigned an ICI ID number. You can view these numbers on each
individual managed device by looking at the Device V iew “System ID Tab”
(see Chapter 3, “Managing from Device View” for specific information about
device view activities).
The device agent, designated as the HMU management agent, is assigned an
ICI ID1. The first managed slave added to the network i s numbered ICI ID2
and the next managed slave is assigned ICI ID3. These numbers are
sequentially assigned as managed devices are added.
Page 17
1-6 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Downlink and Uplink Ports
The Downlink and Uplink Ports are defined by the physical cabling tha t exists
between devi ces in the management hierarchy. Downli nk Ports or Parent Ports
are ports on the higher level devices to which a device lower in the hi erarchy
is attached. These can appear in both proxy masters as well as cascaded
devices. Uplink Ports or C hi ld Ports are the port numbers on the lower-l evel
device that attachment is made to.
The figure below shows a sample SAN configuration that illustrates the
relationships between ports.
1
gadzoox
GIBRALTAR GS
2
G
G
B
B
7
8
G
G
B
B
The Downlink Port (7)
The Uplink Port (1)
gadzoox
GIBRALTAR GS
1
2
G
G
B
B
The Downlink Port (4)
When selected, displays:
Proxy Agent IP Address:
Port Count: 6
Inter-Hub ID: 3
Parent Inter-Hub ID: 2
Parent Port: 4
Uplink Port: 2
Figure 1-1. Device ports
Initial HMU Startup
The first time HMU is started, the IP address of a Compaq-managed proxy
master devic e at your site must be entered. I f you do not have that address,
check with a system administrator so that you have it before launching HMU.
Thereafter, that IP address will be stored in a file in the default path,
“C:\Program Files\Compaq\HMU\”, or at an alternative path if one was
entered during installation. It will not need to be entered again unless it
changes or a different pro xy master is to be managed.
3
4
G
G
B
B
9
10
G
G
B
B
3
4
G
G
B
B
nnn.nnn.nnn.nnn
Proxy Master, the parent
Inter-Hub ID 1
5
6
G
G
B
B
11
12
G
G
B
B
Cascaded Hub "A"
Inter-Hub ID 2
5
6
G
G
B
B
The Uplink Port (2)
gadzoox
GIBRALTAR GS
1
2
G
G
B
B
When selected, displays:
Proxy Agent IP Address:
Port Count: 12
Inter-Hub ID: 1
Parent Inter-Hub ID:
Parent Port:
Uplink Port:
When selected, displays:
Proxy Agent IP Address:
Port Count: 6
Inter-Hub ID: 2
Parent Inter-Hub ID: 1
Parent Port: 7
Uplink Port: 1
Cascaded Hub "B"
Inter-Hub ID 3
3
4
5
G
G
G
B
B
B
The Downlink Port (6)
Device Port
nnn.nnn.nnn.nnn
nnn.nnn.nnn.nnn
6
G
B
Unmanaged Device
The initial starting sequence is as follows:
Page 18
Getting Started 1-7
Select the Start, Programs menu and click Compaq Hub
1.
Management Utilities (if a copy of a shortcut is displayed on your
desktop, double-click it). The initial HMU screen shown in the figure
below will display. This screen will only appear when HMU is started
for the first time or after the HMU.dat file has been deleted.
Figure 1-2. Initial HMU screen
Enter an IP address.
2.
Click the Discover bu tto n.
3.
The next part of the process is to verify the SNMP and to set Community
Names. If the Community Names are still set to the defaults, HMU will
continue with discovery.
NOTE: The default get Community Name is “public”, while the default set Community
Name is “private”. If these do not work, check with a system administrator who can give
you the current Community Names. To set Community Names, see Appendix C,
“Configuring the Management Module.”
Page 19
1-8 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
The discovery process can take several seconds, during which time the HMU
progress status indicator a ppears. It will indicate which device it is polling, so
if there is more than one, there will be changes in progress. It will normally
time out in 60 seconds, but if it appears to be taking too long, click on Cancel
to stop it. Wait at least 60 seconds before canceling. The first time HMU is
started, allow the system to time out, in order to get a better idea of how long
to wait in the future if a problem occurs.
Figure 1-3. Progress status indicator
The discovery process establishes communication links with the proxy master.
Other managed devices connected to the proxy master b y Fibre Channel are
found automatically. The Device Name, Location, Contact, Serial Number,
and Device Count fields are filled in, but the Location and Contact fields will
be empty if not previously entered manually.
Once discovery is complete, the Update SAN View button (shown in the lower
area of the figure below) becomes active.
Figure 1-4. Update SAN View screen
Page 20
Getting Started 1-9
Click Update SAN View. When the topological update completes
4.
successfully, the device topology is displayed. The default view is a
hierarchical representation that appears in the figure below. This is the
main menu for controlli ng devices wit h HMU.
Figure 1-5. Default SAN View screen
Page 21
1-10 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Subsequent HMU Startup
Select the Start button, Programs, a nd click Compaq Hub
1.
Management Utilities (if t here is a shortc ut on your desktop,
double-click it). This time, a different initial HMU screen will appear,
shown in the figure below.
Figure 1-6. Initial screen on subsequent start up
Assuming a “Yes” response, HMU will use the old IP address as well as
2.
the SNMP get and set Community Names stored fr om the last time you
used HMU. If you give an “No” answer, you must set Community
Names. To do so, see Appendix C, “Configuring the Management
Module.”
Page 22
Help and Information Resources
At screen displays that have a Help menu item, select Help, Help Topics
(where avail able) to display the help window.
Getting Started 1-11
Figure 1-7. Help screen
The Index tab is the default. You c an double-click any topic , or click a topic
to select it and then click Display. That will open the help available for that
topic.
The Find tab lets you search on a string. Use these steps:
Click the Find tab.
1.
Use the dial og box instructions to build a da tabase of words from the
2.
HMU help files.
Type a search string into the entry box in the first window. Some
3.
result(s) will be displayed in the next wi ndow. You can narrow the
selection to a word or words and an additional window will display all
topics that contain that word.
Double-click a topic to display it, or sele ct a topic with the mouse and
4.
click Display.
NOTE: From any displayed Help topic, you can click Help Topics from th e menu and
return to the Find or Index tab and it will show your last search topic.
Page 23
1-12 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Device View Information screen
To display information about your devices, click Display Device View. A
graphical representation of the hub system will appear. This Device View
screen displ ays a virtual panel of a Compaq device (for example, the front of a
Compaq Storage Hub 12 Hub). As you move the cursor (shaped like a poi nting
hand) over programmed ar eas on the virtual panel, help will pop u p
automatically about the item directly beneath the cursor. The pop-up help will
be displayed for five secon ds.
Figure 1-8. Device View
When the expanded Device View is displa yed (with management tabs), rightclick within any active pane or on a variable. Click the What’s this? button to
get a context-sensitive explanation of a variable or the pane. See Chapter 3,
“Managing from Device View” for more information about the Device View
screen.
This completes the installation of the Hub Management Utilities. Proceed to
the next chapter for information abou t managing devices from the HMU menu
screen.
Page 24
Chapter
2
Managing from Hub 12 Management
Utilities GUI Menu Screen
Compaq Storage Hub 12 Management Utilities ( HMU) SAN Manager not
only permits you to observe what is happening in your Fibre Channel net work,
but also permits you to cont rol devices remotely and find faults in your
network. HMU’s capabilities fall into three categories: Informational, Control,
and Diagnosti c.
Informational Displays: There are four sets of informational displays
1.
in HMU. These are:
The SAN View tab of HMU’ s GUI is the main window for keeping
a.
track of the overall status of your networ k. Two buttons on it display
the status of all of the devices either graphically in the View Devices
by Connection window or in a tabular format with the View
Devices by Name window. The Context Menu is available in both
of these windows. This menu gives access to other windows that
offer further information and diagnostic functions.
Display Network View is one of the sets of windows accessed from
b.
the Context Menu. It contains four tab pages that pres ent network
status on an individual device level. The s e tab pages all ow the
monitoring of traffic levels on the network as well as the activity of
various FC-AL (Fibre Channel Arbitrated Loop) primitive s. I n
addition, there are a number of additional control functions.
The Event Log tab is the second tab on HMU’s GUI window.
c.
Clicking on it displays a log of events that have occurred since the
last time HMU was started.
Page 25
2-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Display Device View is an intuitive GUI interface that presents the
d.
same information noted above but in a completely graphical
representation of the fr ont panel of the hub.
Control functions: HM U contains a ful l suite of control functions.
2.
These functions are located in one of three locations:
The Context Menu - As noted, one of the items on the Context
a.
Menu is the Display Network View tab pages. One of its tabs,
Network Configuration , permits control of the Polling Rate, Retry
Count, and Timeout period of SNMP polling as well as enabling the
user to set the Trap Management station’s IP address.
Device View - This GUI interface also permits you to set and reset
b.
some of the parameters controlled by the Context menu. These are
discussed in the next chapter.
File Menu - Clicking File at the top of the main window opens a
c.
menu that gives access to several important including configuring
the log file and deleting events. This menu sets these parameters
across the ent ire monitored ne twork. This menu is discussed later in
this chapter.
Compaq Storage Hub 12 Diagnostic Tools Fault Diagnosis and
3.
Resolution: Finally, the DisplayNetwork View tab pages also contain
two separate fault diagnostics. The first is Loop Utilization Alert and the
other is Diagnostic Tools. Selections in these pages i nclude the
following:
■ Set Utilization Alert Percentage - This feature permits the setting
of the network utilization rate to the point at which an alarm is
sounded. The default value is a 90 percent utilization, but it can be
increased or decreased easily.
■ Diagnostic Tools - This is a set of aut omatic diagnostic and repair
tools that initiates the following two diagnostics:
q
Loop Initialization Diagnostic - This d iag nostic will appear
whenever one or more devices are unable to initialize properly.
The tool continues to restart the initialization process. The
diagnostic will determine which devices are at fault, isolate
them, and identify them.
q
Broadcast Storm D iagnostic – This is related to the Loop
Initialization diagnostic. Broadcast Storm Diagnostic will hunt
down and isolate any devic e that is broadcasting a c ontinuous
stream of LIP(F7,x) or other primitives.
Page 26
SAN View Tab
The SAN View Devices by Connection window (shown in Figure 2-1) is the
first display that appears once the discovery process a nd topologica l updates
are completed. It presents a graphical presentation of the overal l network, a nd
also permits access to all the other features of HMU. The SAN View tab is the
main window of HMU.
At the top, the managed master device acting as the proxy master displa ys its
IP address. T he managed an d unmanaged slave devices display a port
identifier that is the Downlink Port number of the parent device to which it is
attached. The status of Inter-Hub Communication Interface (ICI) devices is
represented by the color of their icons as listed below.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-3
Figure 2-1. SAN View tab - View devices by connection
■ Green represents normal status.
■ Yellow indicates a change in status, such as a port being automatically
bypassed.
■ Red indicates a critical or major fault, such as a power supply,
temperature, fan fault, or loss of communication with the device.
Page 27
2-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
The two push buttons near t he top of the HMU window toggle between the
default hierarchical view and the View Devices by Name window, shown in
the Figure 2-2.
Figure 2-2. SAN View tab- View devices by name
In this display, the devices are sorted alphabetically. The Status column
indicates one of the following: Normal, Minor, Maj or, Warning, Critical, and
Not Managed. Both views display ICI-co nnected devices that can be managed,
in addition to any unmanaged devices t hat have been manually added to a
network.
Page 28
The Context Menu
Most HMU activities can be accomplished from the HMU Context Menu.
This menu is selected by right clicking on either of the SAN View tab
windows. Specific features and functions of the Context Menu depend upon
which wind ow and type of device are highlighted.
For example, if the hub repre s entation is right clicked, the HMU Context
Menu shown in Figure 2-3 appears. In this case, the user is only permitted to
perform act i ons that are related to adding, deleting, discovering devices and
more.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-5
Figure 2-3. HMU Context Menu – on the hub representation
If the mouse is moved to one of the icons representing a device and right
clicked, the description of that device c hanges to white lettering on a blue field
and a differ ent version of t he Context menu appears. Thi s menu reflects the
control functions available in that device alone, as shown in the figure below.
In the illustration, the proxy master hub has been selected, and as a result,
several funct ions are enabl ed. Other devic es in the network might have fewer
choices enabled, but each menu is appropriate for the device selected.
Page 29
2-6 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-4. HMU Context Menu - on a device
Display Device View
The first item in the Context Menu is Display Device View, which selects the
Device View GUI interface.
Display Network View
Clicking this item selects a set of four tab windows that display a wealth of
information about the functioning of the SAN. Some of these tabs allow
control of specific functions and parameters as well.
Page 30
Network Status Tab
The first tab, shown in the figure below, is the Network Stat us tab. This tab
displays inf ormation in a table format.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-7
Figure 2-5. Network Status tab of Display Network View
Summary infor mation appears across the top of the window. This includes t he
status of the loop, as well as information about initialization. The little icon
near the top shows the network status in color and with a nearby text message.
The colors of the icon are the same as used in the SAN View tab page.
Below, the status of each port on each managed device in the network appears,
showing one port per line. This informat ion includes the number of t he device
the port is o n, the port number and status of that port as well as the numbe r of
LIPs that have occurred. This information is particula rly useful whe n
determining devices that display atypical behavior . Additional information
includes the AL_PA of the device that port is connected to (if there is one), as
well as Loop ID. The Device name may also appear if it is a managed device.
Page 31
2-8 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Network Traffic Tab
The second tab is the Network Traffic tab, shown in the figure below. This
window shows overall utilization and has a diag nostic f unction as well.
Figure 2-6. Network Traffic tab of Display Network View
Network Utilization Meter
The speedometer-like meter on the upper left corner of this window displays a
graphical presentation of the loop utilization that is updated every few
seconds. The Reset Utilization button, when clicked, ca uses the utiliza tion to
be updated immediately.
The Loop Utilization Alert
The Loop Utilization Alert permits the user to set a percentage of utilization,
which sets off an alarm when that percentage is exceeded. This alert is in the
form of a Trap, which is sent to the Trap Management Station. The alarm set
point can be set by clicking on the Set Alarm Percentage button. From this
window, the a l ert can be disabled or the per centage of utilization can be set.
Page 32
Figure 2-7. Setting Network Utilization Alert
Source/Destination Pairs
This window lists the devices that are talking to each other on the loop.
Devices that are communicating with each other are listed by AL_PAs. In
some cases it may appear that devices are talking to themselves. This is a
result of the use of "half-duplex" Opens to initiate conversations on the l oop. If
a half-duplex Open is used, then the device initiating the conversation does not
place its address in the Open request. Consequently, the destination address
appears twice in the Open request. If devices use full-duplex Opens to initiate
conversations, then the actual source and destination addresses will appear in
this window.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-9
Primitives
The third tab window of the Network Properties is shown in the figure
below. It is a count of the number of times each of the indicated Fibre Channel
primitives has been execute d since HMU has be en started or since the
appropriate reset button ha s been pressed. Counts can be reset globally well as
individually.
There are four primitives that can be disruptive if an aberrant device creates a
continuous stream. All three types of LIPs as well as the NOS/OLS primitives
can occur continuously; if they do, there is a problem somewhere in the
network. If the LED-like indicator to the left of any of these four i t ems lights
up, it is a signal to begin an i mmediate search for the problem.
Page 33
2-10 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-8. Primitives tab of Display Network View
In the case of continuous pri mitives, first t ry the Broadca s t Storm diagnostic
that is described in the next section. Since i t is triggered by the same criterion
as the continuous primitive warnings on this tab pa ge, it ha s a f a ir ly good
chance of is ol ating the pro bl em. Should that fail, disconnect devices, one at a
time, until the cause of the problem is isolated. This page shows if the pr oblem
has been isolated.
The meanings of the various primitives are listed in T able 2-1.
Page 34
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-11
Table 2-1
Definitions of FC_AL Primitives
Primitive Definition
LIP(F7,x) A count of the number of Loop Initialization
Primitives (F7,x) that have been detected on the
loop since the interconnect devices were last reset.
A LIP(F7,x) is an FC_AL primitive sequence that a
device transmits when it is requesting loop
initialization.
LIP(F8,x) A count of the number of Loop Initialization
Primitives (F8,x) that have been detected on the
loop since the interconnect devices were last reset.
A LIP(F8,x) is an FC_AL primitive sequence that a
device transmits when it is requesting loop
initialization. A LIP(F8,,x) differs from a LIP(F7,x)
that the LIP(F8,x) is sent by a device that has
detected a failure on the loop.
LIP(y,x) A count of the number of selective reset primitives
LIP(y,x) that have been detected on the loop, since
the interconnect devices were last reset. A
selective reset primitive is used to request a loop
initialization and to request that the “y” (or
destination device) perform a vendor-specific
reset.
CLS A count of the number of Fibre Channel Closes
(CLS) that have been detected on the loop, since
the interconnect devices were last reset. A Close is
sent by a device to terminate a loop circuit.
LPB(y,x) A count of the number of Loop Port Bypass (y,x)
Primitives that have been detected on the loop
since the interconnect devices were last reset. A
Loop Port Bypass is sent from a device to force
another device’s Loop Port State Machine to
bypass itself.
continued
Page 35
2-12 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Table 2-1
Definitions of FC_AL Primitives
Primitive Definition
LR/LRR A count of the number of Link Reset and Link
Misaligned K28.5 An aggregate count of the number of FC_AL fill
continued
Reset Response primitives that have been detected
on the loop since the interconnect devices were
last reset. NOS (Not Operational) is sent by a
device to indicate link failure. OLS (Offline) is sent
by a device that is going off-line or is in the middle
of completing installation.
words that are not delineated by a K28.5 (control)
character and the number of misaligned K28.5
(control) characters.
SNMP Configuration
The fourth tab of the Network Properties is t he SNMP Configuration tab,
shown in Fig ure 2-9. This page permits y ou to configure several impor tant
SNMP parameters.
Figure 2-9. SNMP Configuration tab of Display Network View
Page 36
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-13
There are three Polling parameters that can be set for the current SAN from
this window. If more than one SAN is being monitored, par ameters can be set
globally. The following parameters will be set only on the selected SAN:
■ Polling Rate - The polling rate establishes how frequently HMU poll
sthe network for status. The default is 0.5 or half a second. The Poll
Rate should be in the range of 500ms-1 hour.
■ Timeout Period – I f there is no response when HMU issues a request to
a managed device, it waits for a specified number of milliseconds and
then retries for a specified number of times before reporting a lack of
connection. The default is 20,000 (20 seconds). The Time out should be
in the range of 5,000-30,000ms.
■ Retry Count: This is the number of retries mentioned above. The
default is 3. The Number of Re tries should be in the range 2-10.
The last two parameters to gether affec t the duration of the Discovery process
that occurs whenever you start HMU. In a very large network, which might
take more than a minute or longer to discover, it may be best to increase one or
both of the Timeout Period and Retry Count parameters.
Trap Management Station IP Address
Part of the SNMP protocol permits devices to send emergency informat ion
between polling cycles. If the device is a slave managed device, the
information is directed to the proxy master, which in turn issues a trap (a kind
of interrupt) . These are sent to the Trap Management stat i on(s) which are
identified by their IP address. There many be more than one, but generally the
IP address of any computer system that normally runs HMU should be liste d.
This part of the window allows you to add or delete individual IP addresses, or
to delete
the entire list.
Diagnostic Tools
The final tab on the Network Properties is the Diagnostic Too ls tab shown in
Figure 2-10. T his permits SNMP parameters to be configure d as well as to set
up both the Loop Initialization Diagnostic and the Broadcast Storm
Diagnostic.
Page 37
2-14 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-10. Diagnostic Tools configuration tab
Loop Up Wait Time (msec)
This parameter is the period of time both diagnostics must wait while the
network is ini tializing. During this proc ess, the netw ork is expected to
complete initializing. If the loop takes too long, the diagnostics will assume
there is a problem and notification is triggered. Since some networks are larger
than others, this could be as long as several seconds, so if t here is a large
percentage of false initialization problem indications, the parameters may need
to be increased.
Over-increasing this parameter will slow the actions of the diagnostics. The
longer the Loop Up Wait Time is set, the longer it will take the diagnostics to
work their way through their actions.
Page 38
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-15
Loop Initialization Diagnostic
The Loop Initialization Diagnostic is activated whenever a loop cannot initialize properly. Loop initialization is initiated by a LIP and is properly
completed with a CLS. The Loop Initialization Diagnostic can be modified to
detect improper loop initializatio n through the Network Confi guration tab.
This can be ac complished by using one of the two criteria listed. Once active,
the Diagnost ic goes though a step-by-ste p process to determine which devices
are the cause of improper loop initialization.
Once the diagnostic has determined the culprit, it will then disable the device
port involved, permitting the problem to be repaired.
Figure 2-11. Loop Initialization Diagnostic screen
There are two independent criteria that will trigger the Loop Initialization
Diagnostic when limits are exceeded. One is Loop Down Duration. The other
criterion is Initialization Frequency, which has three separate
sub-parameters.
■ Loop Down Duration is the number of consecutive seconds that the
loop is unable to initialize before the Loop Initialization Diagnostic is
triggered. If a LIP is detected and a CLS is not detected within the
specified Loop Down Duration period, the Loop Initialization
Diagnostic will be spawned.
Page 39
2-16 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
■ Initialization Frequency is the second criterion. This trigger is
designed to detect a loop that is continuously initializing and consi st s of
three parts:
q
Initialization Count is the number of tim es loop initialization
detection must occur within a defined window of time in order to
trigger the diagnostic. A defined parame ter of zero di sables the
diagnostic process, and should not be used.
q
Initialization Window (sec) is the definition of just how long a
window lasts in seco nds.
q
Consecutive Windows is the number of consecutive initialized
windows that are detected in the Loop Init Count parameter in
order to trigger the diagn ostic.
An example of Initialization Frequency crit erion using specific values is the
detection of at least one loop initialization for five consecutive one second
periods. When this condition is detected, the Loop Initialization Diagnostic
will be spawned.
NOTE: The use of zero effectively disables the diagnostics, so always use a value of 1 or
greater.
Broadcast Storm Diagnostic
Like the Loop Initialization Diagnostic, the Broadcast Storm Diagnostic
appears whenever there is trouble. However this diagnostic is specifically
designed to find whatever device is broadcasting a continuous stream of
primitives. Continuous stre ams of primitives represent atypical behavior and
will keep the network from initializing. This diagnostic to ol wil l lead the user
through a step-by-step se t of actions t o i dentify and isolate the faulty node.
Page 40
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-17
Figure 2-12. Broadcast Storm Diagnostic
The primary criteria for activating this diagnostic tool include Loop Down
Duration and Initialization Frequency, which trigger the LED-like warnings
in the same manner as the Loop Initialization Diagnostic tool.
Discover Proxied Devices
The discovery process probes the Fibre Cha nnel network connected to the
proxy master device and determines which devices exist on the Fibre Channel
network. These devices include all Compaq ICI-capable, interconnect devices.
IMPORTANT: The Compaq proxy master device should find itself (as a minimum) and
record at least one device. If no managed devices are found, there is an error. You should
check the IP address and the physical connection, as well as insure that the device is
configured as a proxy master agent.
The Fibre Channel Proxy Agent dialog box appears after the se l ection is made
in the Context Menu (accessed by right clicking). This display can also be
used to set the Community Names for each individual network. Simply enter
the informat ion and click set. Communit y Names can also be set globally as
well.
IMPORTANT: Compaq Community Names are case-sensitive and limited to 15 characters.
Page 41
2-18 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-13. Fibre Channel Proxy Agent dialog box
When the Fibre Channel Proxy Agent dialog box appears, enter the IP address
of the Ether net connection to that Fibre Channel de vi ce, and click Discover.
When discovery is complete and successful, the Master Device Name, Serial
Number, and an (ICI) Device Count should be filled in and the Update SAN
View button active. The topol ogical view s hould be updated to reflect any new
networks
discovered. The Location and Contact fields may be filled in if they
were previously entered in a Managed Devi ce Properties di alog box.
Click the Update SAN View button to add icons that represent the discovered
Fibre Channel devices to t he topological vi ew.
The timeout of the discover y process is set by the polling Timeout and Retry
Count.
Page 42
Multiple SAN Discovery
The HMU SAN Manager can manage more than one SAN at a time. To
accomplish this, perform discovery on each network’s proxy master.
If there is a previously defined proxy master when anot her network’s proxy
master is added, they will appear as independent networks on the SAN View
tab pages. Each proxy master can be easily identified, since each displays its
IP address. This becomes very convenient w hen monitori ng more than SAN.
Each of the proxy masters can be removed, along with its entire network while
still leaving the other networks intact.
In addition, several parameters can be set for all netw orks in a global m anner
using the File Menu.
Add Device
The hubs and switches automatically discover valid FC device s attached to a
port. Furthermore, if tr affic has been transferred between two FC devices, then
the AL_PAs of the device will be trapped and displayed. This screen allows
the user to enter additional information about the FC devices discovered in the
SAN. By doing this, the device will be displayed in the Device View as well
as other displays.
Begin with t he Context Menu to attach an additional information about
4.
a device. Place the cursor directly over the hub to which you want to
attach the unmanaged device. (Please note that you must be careful to
select the correct managed device). Next, right-click the mouse to
display the Context Menu. Select Add Device. The Add Device dialog
box, shown in the figure be low, is displayed.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-19
Page 43
2-20 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-14. Add Device dialog box
Enter Device Name, Locat ion, Contact information, and Device Type
2.
(available from the pull-down menu). The Port Number should agree
with the physical cabling. The field allows changes if you want to assign
a different port.
NOTE: Status does not allow changes. The AL_PA box may be grayed out. Only devices
with the requisite firmware can display the AL_PA assigned to it.
When the entries are complete, click
3.
OK
. If the hub port is physically
connected to the device and enabled, the additional description for the
device is added to the SAN View topological view. However, if the port
has been bypassed manuall y, or if the devic e is not physically
connected, the information screen in Figure 2-15 appears.
Click Yes to add it to the SAN View topological view. Note that it still
4.
cannot participate in the loop until its bypass state changes. Click No to
leave it off of the SAN View topological view.
Figure 2-15. Port Currently Bypassed message
It is also possible that additional information to a valid de vice i s bei ng
5.
added to a hub port that alre ady has an inter-hub managed device
attached to it. If that is the case, an information screen will appear. Click
OK and enter the correct hub p ort number for the attachment.
Page 44
If additional information is being ad ded to a device’s hub port that
6.
already has information attached to it, a message screen is displayed.
This display indicates pr eviously entered
port, but not the actual physical device connections. You can choose one
of these buttons:
Click Yes to replace the previously added device information
a.
displayed by HMU with the new one if a new physical attachment
has been added.
Click No if that is not the case, and another hub port number needs
b.
to be selected.
Click Cancel to defer making a chan ge to HMU.
c.
Delete Proxy or Device
This menu item is used to delete a proxy master and all of its attached devices,
or any individual unmanaged devices. Sel ect the proxy master or unmanaged
device on the SAN View tab window and right click. That will select the
Context Menu associated to that proxy or device. Next, click on Delete Proxy
or Device.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-21
information for this parent
If a proxy ma st er is removed, the entire re presentatio n of that proxy master’s
network wil l be removed from the topological view even though its members
may still be physically connected to the network. This facility s imply removes
the entries for the proxy master and its connected devices from the database.
If an unmana ged device is deleted, the representation of an unmanaged device
will be removed from the SAN view even though it may still be p hysically
connected. It has only bee n removed it from the database.
Properties
You can view as well as edit the properties of all devices with this menu item,
depending upon whether the device is managed or not managed. In t he case of
managed devices, only the Location and Contact fiel ds can be edited, while
unmanaged devices allow editing of most of their fie lds.
NOTE: You cannot delete a managed device in the network without also removing its
proxy master since HMU determines the existence of the managed device automatically
by means of that proxy master during discovery.
Page 45
2-22 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Managed Device Properties
Select the Managed Device in the SAN View tab window and right click.
Next, select Properties from the Context Menu that appears. The Managed
Device Proper ties dialog box, shown in the figure below, a ppears. This is a
read-only di splay that di splays the properties of a managed device. It can be
used to enter the Location and Contact information for that device. This
information will appear on other displays once entered. This information can
also be entered from the Device View System ID Tab.
Figure 2-16. Managed Device Properties
NOTE: The Uplink Port is the port number for the currently viewed device connected to the
Downlink port of its parent. A proxy master does not have an Uplink Port—only slaves do.
For more information about Uplink and Downlink Ports, see Chapter 1 “Getting Started.”
Page 46
Save Topological Data
Any time during a HMU session, topology can be saved to the HMU.dat
archive file. To save the current topology, click anywhere on the SAN View
screen. Next, click Save Topological Data. If a save is not performed, the
topological data will be saved automatically whenever HMU is closed.
NOTE: To save topological data, File, Save Topological Changes can be selected from
the menu bar.
Clear A Fault
If a hub parameter exceeds the limit and displays an alert condition in either of
the SAN View tab pages, the alert can be cleared. To clear a fault, place the
cursor directly over the device whose parameter exceeded the limit, right click
to display the Context Menu, and t hen select Clear Fault Indication.
IMPORTANT: The color code or text string will revert to normal in the SAN View page.
That does
has been cleared in the Device View. Determine if a setting has been changed
erroneously, or if something adverse is happening in the hub.
not
mean that you have dealt with a problem, nor does it mean that the alert
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-23
File Menu
Clicking on the File Menu in the upper left corner of HMU’s SAN window
offers the selections shown in the figure below. This menu gives you access to
a number of HMUs global parameters. In the previous section, we explored the
Context Menu that allows users to set parameters on a device-by-device and
per network basis. This menu permits changing parameter s for all of the
managed devi ces on all the networks bein g managed thr ough one set of
actions.
If one network is being managed, there i s no real difference between the File
Menu and previous windows. However, ther e are many useful items on this
menu, such as Configure Log File and Clear Event Page.
Page 47
2-24 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-17. File Global Menu
HMU.log File
The first entry in the File menu configuration of the HMU.log file with the
Configure Log File item. Simply Click on File and then select Configure Log
File.
Figure 2-18 s hows the available tailoring options, listed and explained below
the figure itself.
Page 48
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-25
Figure 2-18. Log File Configuration
■ Log File Size - This defaults to 100 KB. This can be set to your desired
upper limit file size.
■ Log File Directory - This defaults to C:\Program Files\Comp aq\HMU\.
It can be set to a different path.
■ Log File Handling -This defaul ts to Backup Lo g File.
q
With the Backup Log File setting, a log file will be generated to a
specified size limit, saved as HMUn.log (where n is a numeral that
gets incremented), and opened to a fresh HMU.log.
q
With the Overwrite Log File setting, a log file will write to the set
size limit and then start overwriting at the start of the original file.
■ Backup File Count - This param eter can be se t in conjunction with
Backup Log File. The numeral displayed shows current highest backup
n in HMUn.log. Click Reset and log files will begin writing as
HMU1.log, HMU2.log, and so on.
Page 49
2-26 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
SNMP Defaults
If more than one SAN is being monitored, the SNMP polling parameters, as
well as Community Names, can be set simultaneously for all n etworks under
management.
Figure 2-19. Global SNMP Parameter settings
There are three SNMP polling parameters that can be set globally with this
window.
■ Polling Rate - The poll rate establishes how frequently you want HMU
to poll the ne twork for stat us. The default is 0.5 or half a second. The
Poll Rate should be in the range 500ms-1 hour.
■ Timeout Period - When HMU issues a request to a managed device, it
waits for a specified number of milliseconds and then retr ies f or a
specified number of retries before reporting a lack of connection if there
is no response. The default is 20,000 (20 seconds). The Timeout should
be in the range of 5,000-30,000ms.
■ Retry Count - This is the n umber of retries mentioned above. The
default is 3. The number of retries should be in the range of 2-10.
Community Names can also be set globally with this window. Enter the names
and click Set.
IMPORTANT: Compaq Community Names are case-sensitive and limited to 15
characters.
Page 50
Save Topological Data
Any time during a HMU session, topology can be saved to the HMU.dat
archive file. To save the current topology, click on File, Save Topological
Data. If a save is not performed, topological dat a will be save d automaticall y
whenever HMU is closed.
NOTE: Click anywhere on the SAN View dialog box and select Save Topological Changes
from the Context Menu.
Clear An Event Page
To clear the contents from a current session’s event log:
Select File, Clear Event Page from the me nu bar.
1.
Click OK.
2.
Exit
Clicking Exit saves the topology data, closes it a nd other files, then performs
an orderly shutdown of HM U SAN Manager.
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-27
View The Current Event Log
Each time HMU starts, the Event Log is initialized. As events occur in a HMU
session, they will be displayed on the Event Log page under the Eve nt Log tab.
Events can include a change in port status, hub environment changes, loss/
resumption of IP communication, or a change to the hierarchical view when a
managed device is removed. The current events are written to the archive log
(HMU.log) as they occur. To view the current session’s events in HMU, do the
following from a SAN View screen:
Click the Event Log tab. The Event Log tab will display the Event Log
1.
information as shown in the figure below.
Right click over an event to display an Event Context Menu item, Find
2.
device in top ological view.
The display will toggle to View Devices By Connection. Highlight the
3.
responsible device, if it is still present.
Page 51
2-28 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 2-20. A Current Event Log
Open The HMU.log File
The HMU.log file can be imported into a spreadsheet program such a s Excel
for viewin g or establishi ng trends. By default, the pa th to HMU.log is
C:\Program Files\Compaq\HMU\HMU.log, or an alternative path if one was
named during installation or changed u s ing the Log File Configurati on dialog
box. The path is stored in the system registry. If the HMU.log file gets deleted,
a new one will be created the next time HMU is started.
To open this file, follow these steps:
Open Microsoft Excel or it s equivalent.
1.
Select File, Open for HMU.l og. The log is a delimited file known as a
2.
comma-separated variable (.csv) file.
When the application makes a request for its delimiter, indicate that it is
3.
“comma.” The fields written to the log file are listed below.
■ Date in US format (month day year time )
Page 52
Managing fr om Hub 12 Management Utilities GUI Menu Screen 2-29
■ Status Event
■ Device Name
■ Device Serial Number
■ Master Loop IP Address
■ Parent Port Sequence
■ Port Number (when it is a port event)
You can defi ne your own fie lds. The default sort is by Da t e/Time. Sort on any
field, such as serial number, to see if just one device is responsible for a
majority of events or sort by event to get a clearer picture of a repetitive
problem.
IMPORTANT: Like all log files, HMU.log will continue to grow in size by each HMU
session’s events. Occasional cleanup is a good idea to save disk space. If you wish to
keep a history, write what you want out to another file. Delete HMU.log completely and a
new one will be created automatically on startup if it is missing.
NOTE: In the Windows interface, you can rename any
simply double-clicking HMU.csv will launch Excel and open the file. You are prohibited
from renaming a currently opened HMU.log file, but you can copy it.
HELP
Check The HMU Version
To check the version numbe r of HMU that is running, d o the following from a
SAN View screen:
From the menu, select Help, About HMU.
1.
Click OK.
2.
The next cha pt er, “Managi ng from Device View,” detai ls how to manage the
storage hub using the Device View screen.
closed
HMU.log to HMU.csv. Then
Page 53
Device View
Additional management tasks can be initiated from Device View, which
displays a graphical representation of a selected device. The physical device
view shows an immediate representation of device status while extended view
allows the user to obtain more detailed information and access control
functions.
To open Device View:
1. Right clic k over the desir ed managed de vice from eithe r the View
Devices by Connection or View Devices by Name display.
Chapter 3
Managing from Device View
2. Select Display Device View from the Context Menu. The HMU
progress status window will appear as discovery is at tempted.
NOTE: Another way to open Device View is to double-click on the managed device’s icon
in the hierarchical view.
Once discovery is complete, a graphical view of the selected device appears.
Figure 3-1. Device View
Page 54
3-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Information on Device View
This view of all the devices provides information in an intuitive, graphical
manner. The view is essentially the same as the front panel of the device itself,
with some additions. In addition to the device’s IP address, a description of the
device appears, along with information explaining where it is located and how
long it has been runni n g.
The main part of the view provides status of each port, its connection
information, and more. The status LEDs for each port are shown as they
appear on the actual device.
To the left of the ports is the fault indic ator LED which indicates whether the
device has a fan, voltage, or temperatur e problem.
Displaying the Expanded Device View
The Expanded Device View can be accessed from the physical device view by
selecting View, Device Details from the menu bar. There are four
management tabs—System ID, Environment, Ports, and Service. The
System ID is the default tab.
Displaying the Physical Device View
Clicking View, Device Details from the menu bar also toggles the view from
the expanded view back to the initial physical device view.
The Device View Management Tabs
Quick access to the device view management tabs is accomplished by the
following:
A click on a Fa ns, Voltage, or Temperature box (in lower right corner)
opens the Environment tab.
A right-cli ck on a port ope ns a context menu. Click Port Detail to open
the Ports tab.
A right-cli ck on any other part of the De vice View opens a Device
Details button. A click on the Device Details button opens the System
ID tab.
Page 55
The System ID Tab
There are three parts to the System ID Tab.
Identification - This section of the tab provides de scriptions, m odel
numbers, and serial numbers for the selected device and its associated
boards.
Fibre Channel Topology Parameters - This sectio n gives Etherne t and
Fibre Channel the following connectivity information:
q
Master Device IP Address - the Ethernet address through which
this device receives management requests and port information that
is relevant to HMU.
q
Port Count - The number of ports on the selected device.
q
Inter-Hub ID - The ID sequentially assigned starting at 1 as
managed devi ces get added to the topology
q
Parent Inter-Hub ID - The Inter-Hub ID of the device connected to
the Uplink Port. This is not applicable to master devices.
q
Parent Port – This is the Downlink Port on a parent device to which
this cascaded device is connected via a cable. This is not applicable
to master devic es.
Managing from Devi ce Vi ew 3-3
q
Uplink Port – The Uplink Port is on the cascaded device to which
the parent is connected via a cable. This is not applicable to master
devices.
Contact and Locati on – These fields identify who is responsible for the
device and where they can be found. These two fields can be edited
directly on this tab.
The Environment Tab
You can clic k over a Fan, Voltage, or Temperature box or click the
Environment tab to display the Environme nt dialog box. T he Environme nt
tab display s three panes
.
Page 56
3-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 3-2. Environment Tab
Power – This functio n shows the status of the power supplies and the
voltage regulator. If redundant power supply is pre s ent, both supplies
would be reflec ted,
Thermal - This function shows the fan and the temperature status of the
device.
Up Time - This function shows how long the device has been up since
the last time it was powered up and the cumulative time the device has
been up since it was manufactured.
Animated indicators with bright green backgrounds demonstrate normal
operating sta tus, while indicators with flashing red backgrounds announce
alert conditions.
The Port Tab
The Port Tab provides information specific to a port as well as certain control
functions. To access this information, click on the Port tab of the expanded
view of the h ub or right click over a port.
The fields in the display are as follows:
Port - This function identifies the device ports by number.
Bypass Control - This function displays a check box that the user can
toggle to force a port into the bypass state. If a Fibre Channel device is
connected to the port that has been forced to the bypass state, that device
will not be allowed to enter the loop.
Page 57
Status - If the port is Enabled, that port has a prope rl y ope ra tin g Fibr e
Channel device connecte d t o it, and the p ort has not had its force bypass
control set. If the port is Bypassed, the port has had its Force Bypass
control set, or else no operating Fibre Channel device is connected to the
port as deter mined by the agent.
Media Type - This function shows the media type supported or if no
connector is present.
Mgmt Protocol - This function indicates whether the device attached to
the port communicates using Inter-Hub protocol or n ot.
The Service Tab
A right click over the RS- 232 port or a cli ck on the Service tab displays a
dialog box. This tab offers the following choices:
Firmware Versions - This function displays the firmware versions
installed on the device.
Temperature Fault Threshold - This function allows control in settin g
a temperature fault threshold for operation. The default fault threshold
default is set a t 60 degrees Celsius.
Managing from Devi ce Vi ew 3-5
Beacon Control - This function controls the flash of the Power LEDs
on the front of the device. A Beacon Contr ol blink rate can be selected
and viewed in an animated format. The beacon can be used to help
distinguish the selected device from a rack of similar devices.
Figure 3-3. Service tab
Page 58
3-6 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Port Properties
Selecting Por t Properties in the menu pulls up a w indow with two t abbed
pages that offer detailed information a nd control over a selected port.
General Port Properties
The information shown in the General Port Properties screen is specific to
the port chosen. This screen offers information about active or inactive ports,
the management protocol in use, and more.
The error counters are essential for analyzing events. If any of these counters
begin to accumulate occurrences too rapidly, check the device attached to that
port. Sometimes the rapid accumulation may only indicate that the device has
been disconne cted and reconnected which can be typical in a SAN. However,
if devices have not been disconnected or reconnected, it might be due to a
problem with a device issu ing invalid LIPs.
Configuration Port Properties
The Operating Mode options are as follows:
Force Bypassed - By checking or unchecking Forced Bypasse d for a
port, that port will be forced bypassed or enabled, respe ctively. When a
port is in forced bypassed mode, a device may be connected to the port,
but it will not be allowed into the loop. If a port is enabled and a device
is attached to that port, that device will be allowed to enter the loop
(assuming tha t other management features such as Aut horized Cut-In
are not disallowing the device’s access to the loop).
Authorized Cut-in - A new device added should be checked bef ore
being added. Sometimes a fully operational device has been plugged
into a specific port, yet disallowed from being part of t he network un til
manually a uthorized. In that case, a window appears and gives
permission for the new device to join the network.
Single Fiber Failure Detection - If this port is connected to another
hub, this option would detect the loss of a single fiber between the two.
If this occurs, the two hubs isolate themselves from each other, but still
function independently (effectively as two se para te networks) until the
problem is repaired. Since the two hubs periodically try to rediscover
each other, they will reconnect automatically when the problem is fixed.
Page 59
Managing from Devi ce Vi ew 3-7
Hot Standby Backup Port - This option allows you to take advantage
of redundant hardware such as dual-ported FC-AL hard drives. The hub
provides the capability to designate a port as a hot-standby port. This
can be used when cascading two hubs together or when attaching a dualported FC device such as a hard drive to a hub to provide link
redundancies. Should the primary connection fail, the backup link
becomes acti ve and network operation i s not interrupted.
Cut-in delay - This is a variant of the Authorized Cut-in feature
discussed above. Some devices will generate invalid data w hen they
boot up. By doing so, they re strict the loop from completing loop
initialization. To avoid disruption of the loop during device boot-up, the
user can specify a Cut-In Delay. When the hub first detects that a device
connected to the port is ready to join the loop, it will use the specified
Cut-In Delay to keep the device bypassed from the loop until t he dela y
period has expired.
Figure 3-4. Port Properties screen
Page 60
3-8 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
LIP Generation
In addition, the hub itself can generate forced LIPs when it detects a change in
a port state. The On Port Enable and On Port Bypass options configure the hub
to generate a LIP whenever this particular port is enabled or bypassed,
respectively. Selecting neither leaves the hub mute. The Use F7 and Use F8
options tells the hub to generate either a LIP(F7,x) or LIP(F8,x).
Device View Quick Access Features
There are many features available through device view that can be accessed
without going through the menu tree. The following is a list of quick access
features.
Display Device Details
If the graphical view of the chassis is right clicked, the System ID dialog box
will come up as a default. If the graphical view of the RS-232 port is
right-clicked, the Environment dialog box appears by default.
Right clicking on a Port
Right clicking on a port brings up a context-sensitive menu that offer s the
following choices:
Force bypass port - This function forces a bypass on the selecte d port.
Enable/Disable port - This function toggles the port to Enable d or
Disabled.
Port Summary - This f unction calls up the Port dialog box to display
information.
Port Properties – This function c alls up the Port propertie s dialog box.
Figure 3-5. Port menu
Page 61
Check Managed Device Serial Numbers
From the Expanded Device View, click the System ID tab. In this view, serial
numbers can be checked in the Identification pane.
Show Device Properties
From the Expanded Device View, click on the System ID tab. In this view,
detailed data will appear about the selected device. You can change the
Location a nd Contact fie lds on this tab by clicking t he Update button.
Change Device Location and Contact
Location a nd Contact information can be changed for a device. To c hange
either of these fields, do the following:
1. Click the System ID tab.
2. Enter a device location and/or a contact name.
3. Click Update.
Managing from Devi ce Vi ew 3-9
Check Power, Thermal, and Up Time
In both Device View and Expanded Device View, the LEDs for fan, voltage,
and temperature display their current status in the lower right corner. If any
box is clicked for fan, voltage, or tem perature in either view, the
Environment dialog box will o pen. From the Expanded Device View, click
on the Environment dialog box. In this view, the status of the power supply,
thermal conditions (indicated by the animated fan and thermometer), and up
time can be checked.
NOTE: Fan, voltage, and temperature faults force their associated LEDs in Device View to
go from green to red and to flash to attract attention. These faults also force the device
icon to go to red.
Set/Cancel Port Bypass Control for the hub
When you click the Ports tab, complete port information appears. This screen
offers the option to force the bypass of a port using the H MU software. The
device on that port can remain connected to the hub, but it will not be allowed
onto the loo p. This is referred to as a manual or forced b ypass. The devic e icon
will remain green, but the change in status will be logged.
Page 62
3-10 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
From the Ports tab:
1. Click the Bypass Control check box by the appropriate port number to
check or uncheck the Bypass control box. This box toggles between Set
and Cancel f or this field.
2. Click OK or Cancel at the message.
From the phys ical device panel Port Context Menu:
1. Right click over the port of choice in the Device View. The Port
Context Menu will display.
2. Click Force bypass port, or Enable port to set or cancel this option.
3. Click OK or Cancel at the informational message.
The Status field can change to represent the state of the port following the
setting or ca nceling of port bypass control. If the port is enabled, that port has
a properly ope rating Fibre Channel devic e connected to i t and the port has not
had its force bypass control set. If the port is bypassed, the port has had its
Force Bypass control set, or else no properly operating Fibre Channel device
has been connected to the por t (as determined by the device).
Show Port Properties
To view all of the port information from the Expanded Device View, click on
the Ports tab. Alternately, in Device View, right click over any port and select
Port Details.
Verify Port Status
To verify a port’s status, from E xpan ded Device View:
1. Click the Ports tab.
2. Verify the status for the port number in question.
Check Firmware Versions
From Expanded Device View, click the Service tab. In this view, firmware
revisions of the agent and the device controller can be checked.
Page 63
Set Temperature Fault Threshold
From the Expanded Device View , click on the Service tab. In this view,
temperature fault thresh old can be set for proper opera tion. The fault threshold
default is set at sixty degrees Celsius.
1. Enter a value between 0 a nd 60 in the threshold box.
2. Click Set.
Set Beacon Control
From the Expanded Device View , click on the Service tab. In the Service
dialog box, the Beacon Cont rol can be set to force the pow er LED on the front
of the managed device to fl ash. The blinking LED is helpful to easily
distinguis h a device requiring attention in a rack of similar devices.
Select the radio button for Off, Slow Blink, or Fast Blink. The beacon
control icon flashes according to the setting.
Download Firmware
Managing from Devi ce Vi ew 3-11
Device View has the ability to download new firmware from a networkattached server using the TFTP (Trivial File Transfer Protocol). The hub will
look at the IP address entered for the TFTP server for any new firmware and
automatically download it.
Refresh Data
From the Device View or Expanded Device View, you can choose Refresh
from the menu bar. The data for the device will be updated.
Check the HMU Version
To check the version number of the HMU that is running, from Expanded
Device View:
1. From the menu, select Help, About Compaq Hub 12 Management
Utilities.
2. Click OK.
Page 64
3-12 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Close the Device View
From Expanded Device View, choose File, Exit from t he menu bar, or click
the Close button. The Device View window will close.
Shutdown HMU
To shut down HMU:
1. Select File, Exit or click the Exit button. Any view t hat appears
onscreen will also be closed.
2. Select File, Exit or click the Close button if you are in either device
manager vie w.
SNMP communication terminates and the application is no longer active.
Page 65
There are many circumstances that can cause problems in software operation,
including current hardware and firmw are incompatibilities, bugs in program
code, physical disconnect ion, security problems, an d user error. T hi s
troublesh ooting chapte r provides specific information to sol ve some of the
common problems that may affect software performance.
Startup Problem
It is possible for HMU startup to fail. This is usually cause d by an erroneous
IP address, a broken physical IP connection to the device, or by an invalid
SNMP Community Name. What you will see is the message shown in the
figure below.
Chapter 4
Troubleshooting
Figure 4-1. SNMP Community Name validation failure
Follow these steps to correct the situation:
1. Verify that the IP address entered is valid on the LAN (including the
subnet mask). If not, find out the correct IP address and subnet mask
from the system administrator.
Page 66
4-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
2. Verify that all the necessary network parameters have been set up
correctly on the device. This is done via the RS-232 serial port. See the
Compaq Hub 12 Management Module installation instructions.
3. If the IP address is valid, verify that the connection to the device has
been established by using the Packet Internet Groper (PING) command
(see the “PING a Device” section in this chapter). If pinging shows a
device response, continue. If not, check the physical connections.
4. Check to see if anyone has changed the get/set Community Names on
the device a nd retrieve the current get/set SNMP Commu ni ty Names.
The RS-232 port on the device will give information on the current
settings. See t he Compaq Hub 1 2 Management Module installation
instructions for more information on the RS-232 port.
5. If the above st eps have bee n followed in the correct order and the most
current SNMP get/set Community Names are correct, try starting up
HMU again. If that fails, try setting the get/set Community Names bac k
to the defaults.
Fibre Channel Topological Discovery
Failure
It is possible for Fibre Channel topological di scovery to fail. When that
happens, the informational screen for this failure will be displayed, as shown
in the figure below.
Figure 4-2. Discovery failure
Here are some suggestions:
Compaq hubs and switches ship with the unit set to master enabled. If
you want to change the defa ult master setting, toggle the Proxy Master
Setup option from the Network Setup Menu and reboot t he device.
Page 67
If this is not the first time discovery has been requested and an IP
address currently being us ed has been rec ognized previ ously, the
physical connection may be at fault. Verify that the connection to the
device can be established by pinging the device from the management
console. If you do not get a r esponse, the physical cabli ng may have
been disconne cted and sho uld be reestablished. Retry d iscovery.
If there ar e a large number of managed dev ices on your Fi bre Channel
network, t he network can be timing out. The timeout duration is a
function of HMUs Timeout and Retries which can be set for a device.
The default t i meout is 20 seconds, which should be enough, but if the
Retry/Timeout parameters were previously change d, they might be too
short. Reset these parameters back to 20 seconds if they have been
decreased. If that does not fix the problem, contact Customer Service.
Icon Turns Red or Status Word Changes
The icons for managed devices in the Devices by Name dialog b ox cha nge
color to indicate a change in status. Red indicates a change that may require
checking. Devices by Connection dialog box indicate change in status by
using words like major and critical. When this occurs, f ollow the suggested
steps below.
1. Check the contents of the Event Log.
Troubleshooting 4-3
2. Look up the meaning of any error messages in the “Error Messages”
section in this chapter. There will be a desc ription and a suggested
action in many cases.
3. Check if the problem is a loss of the IP connection. Try to ping the
device and verify it responds. Check on the physical connection as
needed.
Page 68
4-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Figure 4-3. Icon red screen
Continuous LIPs
If the networ k is suffering from either too many LIPs or LIP broadcast stor ms,
test for these si tuations and find out if excessive or continuous Fibre Channel
primitives of various types a re occuring.
Ping a Device
Although this test is usually automatically performed by HMU during the
discovery process, this test can be performed manually.
If there is a problem communicating with a device after the IP address has
been verified, check that the physical connection to the device has been
established, by using Pac ket Internet Groper (PING). This is known as
“pinging” a device. From the DOS prompt of the PC, enter the following l ine:
ping nnn.nnn.nnn.nnn
Page 69
The
nnn.nnn.nnn.nnn represents the IP address to be checked. The figure below
shows a sequence where the device at the IP address responded, followed by a
sequence where the device at the IP address timed out and did not respond. If
the device re sponds, it is o bviously conne cted and the I P address is wor king.
Exit and then Enter to close the window.
Type
Figure 4-4. Pinging a Device
Error Messages
Troubleshooting 4-5
HMU can return a number of messages. Some are just informational while
others may indicate a probl em that should be checked. The section below lists
error messages in alphabetical order. In most cases, the listed messages are
accompanied by a brief explanation and a suggested action.
Page 70
4-6 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Table 4-1
Error Messages
Message Description Action
Accessing device for data Cancel terminates access.
A device for this port already
exists. Replace it with this
one?
An unmanaged device
attached to port n on N was
just BYPASSED.
Archive file not found.
This is informational. Let the action run to completion
You attempted to add a device
to a port already assigned.
This message is informational
and displays when a port is
automatically bypassed due to
some failure on that port.
This message is informational
and displays under these
circumstances:
When HMU is run for the
first time
If no HMU.dat file exists in
the HMU directory, or
If the HMU.dat file is out of
date or corrupted.
or click Cancel.
Yes - Replace the previous
device with information for the
new one, or
No - Make no change and try
adding the device to a different
port.
Attach the device to another
port.
Call Customer Service.
No action is required. A new
file will be created.
continued
Page 71
Table 4-1
Error Messages
Message Description Action
Troubleshooting 4-7
continued
Bad Fan indicated for hub.
Bypass Port n?
Continuous FCAL (F7, F8, or
OLS) loop initialization
detected for loop
nnn.nnn.nnn.nnn.
Look for the source of the
problem by checking HMU View
levels (if managing multiple
devices) to determine which hub
level had the fault.
This is informational and
appears whenever a port is
selected for a manual Force
Bypass.
This is informational and is
displayed when LIP messages
are occurring on the proxy agent
at the IP address represented
here by
nnn.nnn.nnn.nnn.
For a 6-port or a 12-port
Compaq Storage Hub 12 Hub: Is
there an obstruction blocking
the air for the blowers? If so,
remove it. There is redundant
blower capability so the hub
could keep operating, but the
hub must be returned for blower
replacement as soon as
possible.
If none of the answers to the
above questions clears up the
problem, contact Customer
Service.
Choose OK or Cancel.
Use the HMU View Ports Tab to
begin systematically forcing a
bypass on each enabled port,
one at a time. When the
offending port is bypassed, the
proxy agent icon should return
to its green color representing
normal status.
Device is no longer in
topological view.
Discovering loop topology for
proxy IP address
nnn.nnn.nnn.nnn.
You have double-clicked an
event in HMU.log and the device
is no longer present and
therefore cannot be displayed in
the Device Manager topological
view.
This message is informational
and is displayed during the
discovery process.
Let the process run its course
and add the new device, or
select Cancel.
continued
Page 72
4-8 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Table 4-1
Error Messages
continued
Message Description Action
Discovery failed.
Lost FC communication for
proxy n.
Management request
cancelled. Data may be
incorrect.
HMU could not connect with the
IP address for the device you
wanted to add.
The communication path from
the console to the device has
been interrupted.
This message is informational.
Click OK. Verify that the IP
address is correct.
If correct, verify that the
connection to the device has
been established by using the
Packet Internet Groper (PING)
command from the DOS prompt
to see if the device responds.
Enter: ping <IP Address>
Check for an inappropriate
timeout.
Contact Customer Service and
let them guide you through
serial interface diagnostics, if
necessary.
Start by checking the Ethernet
connection.
If it is firmly connected and the
network is up, try pinging the
device to see if it responds.
If the problem persists,
shutdown HMU and then restart
HMU.
If the problem still persists, reset
the device firmware with the
Reset button on the LED panel.
If none of these corrects the
problem, contact Customer
Service.
Click OK.
continued
Page 73
Table 4-1
Error Messages
Message Description Action
Troubleshooting 4-9
continued
No data was saved in the
previous session.
No managed devices found.
No more ports available for
the selected device.
Not a managed device. Select
a managed device.
Please enter an integer
between 1 and n.
This message displays when no
No action is required.
valid data existed at shutdown
from the previous HMU session.
This could happen if HMU is
shut down and there were no
devices in the hierarchical view.
This message displays when an
incorrect IP address was
Verify the IP address and ping
the node for a response.
entered or no device was found
at that IP address.
This message is informational. Delete an expendable device to
make room for the new device.
Consider expanding the Fibre
Channel capability to match the
growing need.
This message displays if have
something other than an Inter-
Select some other device that is
managed.
Hub1 Communication Interface
(ICI) device is selected and some
action was attempted that it was
unable to perform.
This informational message
displays if a numeral were
Enter an integer within the valid
range of ports on the device.
entered that exceeded the
number of ports on the device.
continued
Page 74
4-10 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Table 4-1
Error Messages
continued
Message Description Action
Power supply fault for hub.
Right-click item in the first
column.
SNMP++:SNMP request timed
out.
Temperature fault indicated
for hub.
Check for the source of the
problem. Is there a general
power failure at the site? Are
there rolling brownouts at your
site? Is a solid connection being
made between the hub and
power supply? Is the power
cable faulty?
Windows supports selection
from any row, but only within
column one.
This message displays when a
device is connected and HMU is
polling but no SNMP response is
received.
Check for the source of the
problem. Is there an obstruction
blocking the cooling fans?
Remove it. Is the temperature
setting in range? Adjust the setting and click OK. Watch for
improvement.
If none of the answers to the
above questions are
responsible, call Customer
Service. Do not attempt to open
the power supply in the device.
Click OK and right click in
column one.
Check the Ethernet connection,
verify the IP address, and ping
the node for a response.
Shut down HMU and then restart
HMU.
If polling requests still go
unanswered, reset the device’s
firmware with the Reset button
on the panel with the LED
indicator.
If neither of these improves the
situation, call Customer Service.
Terminating management
requests.
This message is informational
when exiting from HMU.
No action is required.
continued
Page 75
Table 4-1
Error Messages
Message Description Action
Troubleshooting 4-11
continued
The loop for IP address
nnn.nnn.nnn.nnn is already
initialized.
The poll rate was successfully
changed to 0.n00 seconds.
The word you have typed is
not in the index.
This port is currently
BYPASSED. Would you like to
add the device anyway?
Topology Change Occurred.
This message is informational. It
appears when a previously
known loop is being discovered.
This message is displayed by
the HMU help system.
This message is informational.
You have tried to add device to
the loop on a port that is
currently bypassed.
This message is informational. No action is required.
Furnish another IP address.
No action is required.
Enter another word or select one
from the list provided.
Yes will add the device to the
port; No will cancel the action.
Page 76
Appendix A
Network Management Overview
This chapter provides an overview about the Compaq Storage Hub 12
Management Utilities and how they interact with the different parts of the
storage area network syste m. The following topics are detailed in thi s chapter:
Storage Area Management (SAN)
Compaq Storage Hub 12 Management Utilities (HMU)
Managed Devices
Simple Network Management Protocol (SNMP)
Setting Community Names in SNMP
Proxy Master
Fibre Channe l Loop Protocol
Loop Initialization Primitive (LIP)
Compaq Storage Hub 12 Management
Module (HMM)
The HMM provides extensive configuration data, environmental st atus, and
device control at the port level through the Hub 12 Management Utilities.
These utilities enable communication between an entire network of devices
with a single E thernet connection and one Simple Network Management
Protocol (SN MP) management station (see the section, “Simple Network
Management Protocol”). The interactions are accomplished using the InterHub Communication Interface, an out-of-band management protocol
transmitted over the Fibre Channel cables. Informatio n ga thered in this process
Page 77
A-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
is stored in the form of a Management Information Base (MIB) and sent via
SNMP to the Hub 12 Management Utilities console that runs on a 32-bit
Windows workstation.
The Hub 12 Management Utilities can be executed from any 32-bit
workstatio n running Windows 95, 98 or NT 4.0. This worksta t ion must
contain include an Ethernet connection to the Proxy Master hub and a Compaq
Storage Hub 1 2 Management Module.
The data that is stored within the information base appears at the management
workstation. The Hub 12 Management Utilities show a Graphical User
Interface (GUI) display of the network topology, and monitor and bypass
control of individual nodes, loops, enclosures, storage devices, a nd
connectivity devices.
Storage Area Network Management
The Hub 12 Management Utilities represent the next generation of
management tools, designed to meet all the requirements of storage area
networks. Fe atures and capabilities include:
Showing the topography of device connec tion, including which devi ces
are connected to nodes or other devices, and the order of connectio n.
Allowing the administrator to remotely control devices, performing such
tasks as enabling and disabling ports on a hub, and changing policies
and parameters within each device.
Enabling the administrator to monitor, detect, isolate, and correct
network problems remotely and to determine fault locations remotely.
Determining traffic flow within the network and monitoring bandwidth
utilization for capacity planning.
Managed Devices
A managed device is any device which can both send and receive data from
the Hub 12 Management Utilities. These utilities can not manage every device
in a networ k. The differences between m anaged and unmanaged devices are
detailed i n Table A-1.
Page 78
Network Management Overview A-3
Table A-1
Managed and Unmanaged Devices
Managed Devices Unmanaged Devices
Are auto-discovered for topological
display.
Automatically attaches and deletes.
Supports monitoring and control of device
and port status.
Proxy Master
The proxy master is a managed device that connects the two sections of the
managed network – the Ethernet part with the Fibre Channel part. T he proxy
master accomplishes the following tasks:
The proxy ma st er relays the communications from the Hub 12
Management Utilities to the individual devices on the Fibre Channel
network. To do this, the pr oxy master must have an Ethernet connect ion.
However, the proxy master communication can not occur through an
Ethernet connection alone.
The proxy master turns on numerous management features within the
system (once it is properly configured internally). One of the most
important management fe atures is the MIB, the repository of
information about the current status of the entire network. The proxy
master automatically polls other managed devices to determine thei r
current status.
Are added manually for topological
display.
Cannot be managed via HMU currently.
Can only be manually attached and
deleted.
The proxy ma st er relays commands issued by the network administrator.
The Compaq Storage Hub 1 Fibr e Channel Hub with the Hub 12 Management
Module installed is the device that acts as the proxy master. When properly
configured, it routinely collects data from all the slave-managed devices
connected to it by Fibre Channel by using the Compaq Inter-Hub
Communication Interface (ICI). The ICI runs over the Fibre Channel cables
but uses its own logical channel not used by the standard protocol (o ut-of-band
communications) without affecting the overall performance of the system.
Page 79
A-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Simple Network Managem ent Protoc ol
(SNMP)
The SNMP is a vit al part of the system for it is the network protocol used to
move data from each managed device to and from the Hub 12 Management
Utilities system. The utilities use SNMP to communicate w ith the proxy
master (see the section “Proxy Master”). The proxy maste r in turn uses this
protocol to pass informat ion to a MIB within the Hub 12 M anagement
Utilities, thereby acting as an SNMP agent.
The Hub 12 Management Utilities allow the user to control various settings
and functio ns of the system. The following f unctions are sum marized below:
Community Names: The Community Names are used as a means to
control access to the management system. Unlike passwords, they have
security limitations, due to the fact that they are transmitted unencrypted
over the net work.
Trap Address: When an event occurs that might have an impact on the
network, a device has the ability to send an e mergency me ssage called a
Trap. This message is sent over TCP/IP to one or more assigned
systems. The Hub 12 Management Utilities allow the user to set the
Trap Address to any system that is already set up to monitor the
network.
Polling: There are parameters for Polling Rate, Timeout duration and
the number of Retries found with Hub 12 Management Utilities.
Set Community Names in SNMP
The Community Names functi on has been set up to prevent unauthorized users
from accessing the Hub 12 Management Utilities.
ICI management modules are shipped with Community Name default values
that should be changed after installation. This customizes the system and
enhances security. The defaults are listed in Table A-2.
Table A-2
Community Name Defaults
Community Name Description Default
get Community Name public
set Community Name private
Page 80
The Hub 12 Management Utilities check the preset Community Names with
the ones on the managed device every time it starts so that a match is
guarantee d. The Community Names may have already been changed after
installation. If there is no match, the Hub 12 Management Utilities cannot
proceed.
IMPORTANT: Compaq Community Names are case-sensitive and limited to 15
characters.
Fibre Channel Arbitrated Loop Protocol
(FC-AL) and Loop Initialization Primitive
(LIP)
Most of toda ys SANs work in a p hysical and/or logical loop topography, an d
the FC-AL protocol is the basic engine of t he storage area network. Within the
FC-AL protocol system, using the Hub 12 Management Utilities, the
administrator can rely on necessary safeguards, called Loop Initialization
Primitives. LIPs serve the function of detecting and managing operating
failures among loop participants. Hub 12 Management Utilities assist in
determining the location of system problems.
Network Management Overview A-5
Loop Initialization Primitives are special primitive si gnals that occur whenever
a new device is added or an old device is rem oved from the SAN. The LIPs
order devices attached to the SAN to briefly pause what they are doing, to
identify themselves, and to receive information about other connected
devices— in effect, performing a network initialization. These primitive
signals are necessary to the consistent performance of the system. There are
several basic types of LIPs, including LIP(F7,x) or LIP(F8,x).
LIPs are also the primary mechanisms to broadcast marginal loop operation by
a loop participant. If an element such as the optical detector within a loop
participant fails and can no longer act as a reliable repeater, it may broadcast a
LIP.
Page 81
Appendix B
Upgrading the Firmware
The firmware for the Compaq Storage Hub 12 hub consists of the device agent
firmware, which is included with the Compaq Storage H ub 12 Management
Module (HMM), and the hub controller firmware, which is the firmware in the
Compaq Storage Hub 12 hub itself. It may be desirable to u pdate the firmware
as new releases are made available. The following explains the procedures for
updating the firmware for the HMM. The following assumes the user is
operating from a serial interface.
There are three steps to the updating procedure:
1. Update the device agent firmware in the HMM of the Compaq Storage
Hub 12 hub that is acting as the master device.
2. Locally update the hub c ont roller firmware of the Compaq Storage Hub
12 hub that is acting as the master device. Local update is an option.
3. Update the hub controller firmware for each of the cascaded Compaq
Storage Hub 12 hubs either remotely (throug h the Fibre Channel
network) or by physically moving the HMM to each cascaded hub
temporarily and loading the hub contr oller firmware locally. Moving the
HMM from hub to hub is faster since the Ethernet can download the
firmware much faster than is possible over the Fibre Channel via the
Inter-Hub Communication Interface (ICI).
Installing the Managem e nt Mod ule
Before proceeding, make sure you have properly installed the management
module. The installation procedure for the HMM is described in the Compaq
Storage Hub 1 2 Management Module installation instructions included in your
user documentation.
Page 82
B-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Finding the Firmware Version Numbers
Determine the firmware versions of the Compaq Storage Hub 12 hub and
HMM from either the Compaq Storage Hub 12 Management Utilities (HMU)
View System ID Tab for the device or the hub’s main me nu.
Downloading Device Agent Firmware
Follow the steps below to load new device agent firmware. This procedure
updates the firmware in the HMM and must be run on the HMM if it does not
have the most recent firmware. Update the HMM device agent firmware
before updat ing the Compa q Storage Hub 12 hub controller firmware.
1. Place the new firmware on a file system that is available to the PC
management workstati on that will be connected to t he hub. The device
agent firmware is distributed on the Compaq website, www.compaq.com.
The most recent version of the firmware can be found on the website.
2. Connect a serial port on the PC via a null modem cable to the RS-232
serial port on the HMM. There is an explanation of how to do this is in
the Compaq St orage Hub 12 Management Module installation
instructio ns. Establish a terminal emulation session.
3. Press the Reset button located on the upper left side of the hub. The
system will run the self-test. Press Enter on your keyboard wi thin a few
seconds to di spl ay the Boot Me nu.
4. From the Boot Menu, select 1 Download and update Device Agent
code.
If you are using a HyperTerminal window, select Transfer, Send Text File.
Open the file to be transferred. Otherwise, follow your terminal emulator’s
procedure for an ASCII download.
NOTE: The download may take about 10 minutes. Follow the instructions on the dialog
box to complete the transfer.
Reset the hub again by enteri ng 4 Reset hub and run self test. The system
will run the self-tests, display device-specific information, a nd di splay the Hub
Main Menu (unl ess Enter on your keyboard is pressed, which will display the
Boot Menu instead).
Once the agent has been upgraded, select 5 Start normal hub operation.
IMPORTANT: If for any reason the download is corrupted and the master unit is
temporarily non-operational, repeat the download.
Page 83
Downloading Hub Controller Firmware
Follow the steps below to load new hub contr oller firmwa re on a local
Compaq Storage Hub 12 hub or to a remote hu b. This proce dure must be run
on all of your Compaq Storage Hub 12 hubs. Use an HMM that has had is
device agent firmware already updated to the most recent revision. This
procedure is covered in t he previous sect ion.
If planning to download the hub controller firmware remotely through the
device agent or master hub (i.e. the hub wi th the HMM in i t) then update the
firmware in that hub first. Alternatively, move the HMM to each hub
temporarily and download the firmware through it locally. As noted, moving
the HMM from hub to hub will be faster because the ethernet is several times
faster than is communications through ICI.
If the hub is alr eady connected to the PC, skip to step 4.
1. Place the new firmware on a file system that is available to the PC
management workstati on that will be connected to t he hub. The device
agent firmware is distributed on the Compaq website: www.compaq.com.
The most recent version of the firmware is located there.
2. If the PC is not connected to the HMM, connect the PC via a null
modem cable to the RS-232 serial port on the HMM. There is an
explanation of how to do t his is in the Co mpaq Storage Hub 12
Management Module installation instruc tions.
Upgrading the Firmware B-3
3. Establis h a terminal emul ation session. This is explained in the
informati on noted above.
4. Press the reset button located on the upper left side of the hub. The
system will run the self-test. Press Enter on your keyboard to di splay
the Boot Menu.
If your download is local to this hub, sele ct 2 Download and update
Hub-Controller code in this hub from the Boot Menu. I f your downloa d is
directed to this hub and/or to remote devices, from the Boot Menu, select 3
Download and update Hub-Controller code in a remote hub (via Agent).
If you are using a HyperTerminal window, select Transfer, Send Text File.
Open the file to be transferred. Otherwise, follow your terminal emulator’s
procedure for an ASCII download.
The download should take less than 5 minutes. This procedure wi ll r e set the
hub and displ ay firmware version infor mation.
Once the agent has been upgraded, select 5 Start normal hub operation.
Page 84
B-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
r
IMPORTANT: If for any reason your download is corrupted and the master unit is
temporarily non-operational, repeat the download.
NOTE: If a cascaded hub is corrupted and the ICI doesn’t work, install an HMM and use
the local download option. The HMM can then be removed. Remember to replace the fille
panel. If planning to update a local and some remote hubs, update the remote devices
first and end with the local download. It will be faster in that order.
Page 85
Appendix
C
Configuring the Management Module
The management module (HMM) needs to be configured only once, when first
installed. However, as the Fibre Channel grows, it might be desirable to
change para meters and settings. In addition, new releas es of the HMM’ s
firmware will need to be installed as they become available. All these actions
require interaction with the firmware. In this appendix we cover the most
common firmware parameters, particularly those needed for the initial set up
of the HMM. Downloading new firmware i s covered in Appendix B,
“Updating the Firmware.”
A connection to the HMM must be established before proceeding with module
configuration. If this has not taken place, see Compaq Storage Hub 12
Management Module installation instructions, included with your use r
documentat ion.
The first step is to reset the hub. This can be done by either powering up the
hub or pressing the reset button. The Compaq Storage Hub 12 hub will run
several self-t ests as shown in t he figure below.
'5$0WHVW WKLVZLOOWDNHDERXWVHFRQGV!SDVVHG
6((3520WHVWWKLVZLOOWDNHDERXWVHFRQG!SDVVHG
)/$6+FKHFNVXPWKLVZLOOWDNHDERXWVHFRQGV!SDVVHG
3UHVV(QWHUNH\IRU%RRW0HQX$JHQWERRWLQVHFRQGV
3OHDVHORJLQE\HQWHULQJSDVVZRUG
!B
Figure C-1. Hub Self-Tests
Page 86
C-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
The Management M odule’s Password
Press Enter on the keyboard and the Boot Menu will appear. If not , you will
be asked for a password as shown in the figure below.
3OHDVHORJLQE\HQWHULQJSDVVZRUG
!
Figure C-2. Login Password
There are several important issues regarding the password:
■ The password is a feature of the HMM. When moving a HMM from one
Compaq Storage Hub 12 to the next, the password moves with the
HMM.
■ The default password set at the factory is ADMIN. It is case-sensitive.
■ New passwords will also be case-sensitive.
■ If the new pa ssword is forgotten, the password can be reset by using the
access code for that particular HMM. It is on the sticker that was
originally attached to the anti-static bag in which the HMM was
shipped. Type access: abcdef instead the password, where “abcdef” is a
six character alphanumeric string given on the sticker. This will reset the
password to ADMIN.
■ If an incorrect response is given, the message will reappear and continue
to do so until either a correct password or special access code is given.
Once successfully logged in, some device-specific information and the Hub
Main Menu will be displayed.
Selecting 1. Reset hub and run self-test will reset the Compaq Storage Hub
12 hub the same way power-on or pressing the r eset button would.
IMPORTANT: Reset the hub only when necessary because this erases any data in RAM.
Any management data or statistics accumulated during normal operation will be lost.
Page 87
Setting Network Paramete rs
From the Main Menu, select 2. Set networking parameters. The Network
Setup Menu in the figure below will be displayed.
1HWZRUN3DUDPHWHUV0HQX
5HWXUQWR0DLQ0HQX
6HOHFW,3DGGUHVV>FXUUHQW @
6HOHFW6XEQHWZRUNLQJ0DVN>FXUUHQW @
6HOHFW'HIDXOW*DWHZD\DGGUHVV>FXUUHQW @
6DYH1HWZRUN6HWXSFKDQJHVDQGUHERRW
0DVWHU'HYLFH6HWXS>FXUUHQW (1$%/('@
!
Figure C-3. Network Setup Menu
IMPORTANT: The Compaq Storage Hub 12 hub is already set as a master device, To
disable the Master Device (item 6 in Figure above), select number 6.
Enter 1 to return to the Main menu.
1.
Enter 2 Select IP Address from the Network Setup Menu. the figure
2.
below shows the sequence. T he HMM is shipped with a default IP
address of 127.0.0.1 that is not yours. It i s a universal “testing” IP
address that should NOT be used for production use. Enter the IP
address that is appropriate for this hub at your place of business. If you
don’t know what address to use, contact the network administrator.
There is also a brief tutorial about IP addresses, subnet masks and
routers on the Compaq website. The URL is www.compaq.com.
Configuring the Management Module C-3
1HWZRUN3DUDPHWHUV0HQX
5HWXUQWR0DLQ0HQX
6HOHFW,3DGGUHVV>FXUUHQW @
6HOHFW6XEQHWZRUNLQJ0DVN>FXUUHQW @
6HOHFW'HIDXOW*DWHZD\DGGUHVV>FXUUHQW @
6DYH1HWZRUN6HWXSFKDQJHVDQGUHERRW
0DVWHU'HYLFH6HWXS>FXUUHQW (1$%/('@
!
,3DGGUHVV6HWXS0HQX
FXUUHQW,3DGGUHVVVHWLV
5HWXUQWR1HWZRUN6HWXS0HQX
RUHQWHUQHZ,3DGGUHVVLQGRWWHGGHFLPDOQRWDWLRQHJ
!B
Figure C-4. IP Address Setup Menu‘
Page 88
C-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
The HMM is shipped with the subnet mask set to 0.0.0.0. While this is a legal
subnet mask, it may not work a t your company. (As noted above, there is a
brief tutoria l about IP addre sses and subnet masks on our web site.) If in do ubt
or if you are having unexpl ained ethernet networking problems, check with the
network administrator. If you need to change this parameter, enter 3 Select
Subnetworking Mask from the Network Setup Menu. T he menu is shown in
the figure below. Enter the appropriate subnet mask f or your network segment.
NOTE: The most common type of IP network is a Class C network. These start with the
first number in the IP address in the range of 192 to 223. For example, a number like
197.134.34.98 is a Class C network. It will usually be a Class C subnet mask. This is
255.255.255.0, and we show how to set this mask in the example below. However, there
are many cases where this is not the correct subnet mask, so check with the network
administrator.
6XEQHWZRUNPDVN6HWXS0HQX
FXUUHQW6XEQHWZRUNPDVNVHWLV
5HWXUQWR1HWZRUN6HWXS0HQX
RUHQWHUQHZ6XEQHWZRUNPDVNLQGRWWHGGHFLPDOQRWDWLRQHJ
!
6XEQHWZRUNPDVN6HWXS0HQX
FXUUHQW6XEQHWZRUNPDVNVHWLV
5HWXUQWR1HWZRUN6HWXS0HQX
RUHQWHUQHZ6XEQHWZRUNPDVNLQGRWWHGGHFLPDOQRWDWLRQHJ
!B
Figure C-5. Subnetwork Mask Setup Menu
Page 89
Configuring the Management Module C-5
The default gateway address is normally not changed. It i s usually the address
for the route r between your subnet and the rest of the ne t work. To change this
parameter, enter 4 Select Default Gateway Address from the Network Setup
Menu. The me nu is shown in the figure below. The Compaq Storage Hub 12
hub is shipped with this set to 0.0.0.0. Enter the appropriate gateway address
for your network segment.
1HWZRUN3DUDPHWHUV0HQX
5HWXUQWR0DLQ0HQX
6HOHFW,3DGGUHVV>FXUUHQW @
6HOHFW6XEQHWZRUNLQJ0DVN>FXUUHQW @
6HOHFW'HIDXOW*DWHZD\DGGUHVV>FXUUHQW @
6DYH1HWZRUN6HWXSFKDQJHVDQGUHERRW
0DVWHU'HYLFH6HWXS>FXUUHQW (1$%/('@
!
'HIDXOWJDWHZD\6HWXS0HQX
FXUUHQWJDWHZD\,3DGGUHVVVHWLV
5HWXUQWR1HWZRUN6HWXS0HQX
RUHQWHUQHZJDWHZD\LQGRWWHGGHFLPDOQRWDWLRQHJ
!B
Figure C-6. Default Gateway Setup Menu
■ A reboot is required foll owing any of the choices available from the
Network Set up Menu. Once all the networking changes required are
entered, enter 5 Save Network Setup Changes and Reboot in order to
have the changes take effect. The system will reboot an d return to the
display.
■ The ICI maste r can be enabled or disabled from the Network Setup
Menu. If you want to declar e a local Compaq Storage Hub 12 hub as the
master of the loop, enter 6 Master Device Setup from the Network
Setup Menu. Its current state will be displayed and can changed by
entering a 2 to toggle between Master Device Enabled/Disabled
followed by a reboot. Upon reboot, discovery will be initiated and the
topological map will be updated.
IMPORTANT: When adding an additional management module in a FC_AL that already
contains a proxy master, to disable the master setting of this module. To disable the proxy
master setting, select step 6 in the Network Setup Menu and select disable.
Page 90
C-6 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Management Options
A word about Simple Network Management
Protocol (SNMP)
In addition to permitting changes to the Compaq Storage Hub 12 hub’s
password as well as configuring the Compaq Storage Hub 12 Diagnostic Tools
(see the section “ Obtaining Hub Information,” later in this chapter), the
Management Options Menu su pports changing parameter s tied to SNMP
information access and delivery. The first group of parameters deals with
SNMP Community Names. There are several parameters that can be set or
changed in the SNMP Community Name strings. The Community Names
define the security characteristics that exist between an agent and a set of
SNMP managers.
The concept is defined at the agent in the hub. The agent establishes one
community for each desired combination of authentication, access control, and
other characteristics. E very defined Community Name can provide a unique
view of management information in the M anagement Information Base (MIB)
by determining the subset of information that may be accessed. The
Community Na me functions a s a minimal security checkpoint much like a
password, but unlike a password, it is not encrypted when it is sent over the
network. ICI devices ship with Community Name default values for SNMP get
(read), set (write), and trap operations. The default strings are listed in the
table below. Since the defaults listed are well-known, it is desirable to change
them for security reasons.
Table C-1
Community Name Defaults
Community Name Description Default
get Community Name public
set Community Name private
trap Community Name SNMP trap
IMPORTANT: The Compaq Storage Hub 12 Community Names that can be changed via
this menu are case-sensitive and are limited to 15 characters.
In addition, the name used to describe the MIB can be changed. The MIB-2
sysName -2 sysName string is used to describe the Compaq Storage Hub 12
hub on a network manageme nt platform such as HP OpenView for Windows
NT.
Page 91
Configuring the Management Module C-7
Managing with Compaq Storage Hub 12
Management Utilities (HMU) SAN
Manager
Once the SNMP agent on the hub is configured, it will be set up for remote
management via the Compaq Storage Hub 12 Management Utilities (HMU).
Informatio n on installing and using HMU to manage the Compaq Storage Hub
12 can be found in the earlier chapters of this guide.
IMPORTANT: Whenever changing Community Name values, make sure that other staff
members who use HMU are told the new Community Names. The HMU interface will
enforce verification before performing the SNMP functions.
Changing Management Options
To change the management defaults, select 3 Management Options from the
Hub Main Menu. The Management Options Menu will be displayed. The
submenus are explained below.
■ Selecting 1 goes back to the Hub Main Menu.
■ Selecting 2 presents the Set SNMP get Community Name. This menu
does not show the old get Com munity Name. We have simply set i t to
the default for example’s sake.
■ Choosing 3 presents the Set SNMP set Community Name. As in the set
Community Name, the old name is not displayed in this menu, and we
are setting it to the default for example’s sake.
■ Set SNMP set community name Menu.
■ Selecting 4 presents the Set SNMP trap Community Name. As in the set
Community Name, the old name is not displayed in this menu, and we
are setting it to the default for example’s sake.
■ Selecting 5 lets you see as well as enter or delete the IP addresses for
any management stations to w hich you want traps sent. Clea r the IP
addresses with choice 8 of the Management Options Menu.
NOTE: The management station must be on the same subnet as this hub.
■ Selecting 6 presents the SNMP MIB-2. This menu displays the name of
the current SNMP MIB-2 sysName, if there is one.
Page 92
C-8 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
■ Choosing 7 restores the default values to the SNMP Communit y Name
fields. There is no menu for this function. The names in Table are
restored to the defaults given. This feature can be handy when trying to
communicate with the Compaq Storage Hub 12 hub from HMU and you
don’t remem ber the names that were set in the hub.
■ Selecting 8 clears any IP addresses that were set up from choice 5 Set
SNMP trap IP addresses. As in the case of choice 7 above, there is no
menu.
■ Choosing 9 permits entering a new password. There is verification if
this has been successfully completed of not. This is NOT an SNMP
function. It is setting the password to the Compaq Storage Hub 12 hub
itself.
■ Selecting 10 presents a menu that permits allowing restricted SNMP
access for up to four systems. That is, only the systems on this list can
access the SNMP information on this hub. Add the system by adding its
IP address, and remove a system from the list by entering its I / O address
a second time. Enabling all IP addresses access is done by using the
illegal IP address of 255.255.255.255. Disable this universal access by
removing that IP address just like any other. Return to the main menu.
Obtaining Hub Information
Select 4 Hub Informati on to display the hub-specific ethernet MAC (Media
Access Control) address and a list of cascaded devices.
The MAC address is a 48-bit ad dress, of which the first half is a Compaq
company identifier, and the other half is an address assigned by Compaq that
is completely unique. The MAC address is not needed in normal operations,
but could be useful when tr oubleshooti ng ethernet problems.
If Manageme nt station IP addresses are pre sent, they identify any management
stations currently observing or managing this hub. Note that users at t hose
management stations would have to know the SNMP Commu nity Names
associated with this hub.
Other infor mation that may be available from this menu would be particulars
about any cascaded devices reporting to this master. Select 2. Display list of
cascaded devices to view the Model , Serial Number, and Versi on of the
cascaded devices. It may take about a minute or so to display if there are many
devices on which to report .
Page 93
Logout
Item 5 of the Main Menu logs the user out and then prompts for the password.
Use this when l eaving the console unattended but with the Fibre Channel
network still running.
Diagnostic Tools
Select 6 Diagnostic Tools from the Main Menu to access the Diagnostic Tools
menu. There are three automatic diagnosis, monitor as well as repair tools in
Diagnostic Tools.
The three diagnostic tools are:
■ Loop Down Detection - This tool de termines if the network has not
come up within a certain period of time. The tool will try to isolate the
offending node and remove it from the network.
■ Continuous Primitive Detection - A very high rate of primitives can be
disruptive t o the Fibre Channel network and are usually caused by a
malfunctioning node. This tool will determine if there is an excessive
rate of primitives, and if so, where they are coming from, and if enabled
to do so, it will try to isolate the malfunctioning node.
■ Init Frequency Detection - LIPs are a necessary part of initialization,
but excessi ve rates of LIPs are usually caused by a malfunct ioning node.
As in the case of the Continuous Primitive Detection tool, this one will
determine if there is an excessive rate of LIPs, and if so, where they are
coming from, and if enabled to do so, it will try to isolate the
malfunctio ni ng no de .
Configuring the Management Module C-9
These tools run in the HMM, thereby reducing the load on the management
station and network alth ough they can be configured f rom both HMU as well
as the console. There are three options for each of these tools:
■ Disabled - The diagnostic tool is inactive.
■ Monitor - The diagnostic tool merely reports any abnormality it sees
and reports it back to the HMU SAN Managem ent system f or the
administrator to deal with.
■ Monitor & Repair - This option not only reports the problem, but also
tries repair the problem as noted above.
These control options are t oggled in round-robin order. Typing 3 or 4 would
have a simila r effect on the other two tools.
Starting Compaq Storage Hub 12 Operation
When finishe d configuring, end the HyperTerminal sess ion. The Compaq
Storage Hub 12 hub will be running in normal operational mode.
Page 94
Troubleshooting the Management
Most of the problems that might be encountered will be related to the devices
on the Fibre Channel network, or the network itself. The source of the problem
can be with the device, the hub, the host, or any of the connections between
the host and device. The following are some of the more common problems
that can occur, and suggestions for troubleshooting them.
Serial Communication Problems
Appendix D
Module
If you are unable to make a successful connection over an RS-232 interface, it
may be due to the large number of variations of this interface. Therefore it is
important to check that the cable is not only plugged in correctly, but that it
has the correct pin connections. A “null modem” cable should be used. Pins 2,
3 and 7 are used. Pins 2 and 3 ar e crossed.
Fibre Channel Connections
The Compaq St orage Hub 12 Management Module (HMM) uses Fibre
Channel cables to communicate with cascaded and end-node devices. Loose or
broken cables can cause a number of problems.
Inspect the cabling between the hub and attached FC-AL devices. Check
for loose, dir ty, broken, or bent cablin g and connectors. Optic cables
should latch into position w ith an audible “click.” DB-9 copper cable s
should be secured.
Page 95
D-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Inspect the hub fault LED indicators for apparent problems. See the next
section. If the Fault LED goes on, the fans or the hub may be faulty or
the temperature may be out of limits.
Check that the GBICs are properly inserted.
Check the port status LEDs. Verify GBICs by te st ing with a loopback
connector to determine if the problem is with the cable or with the port.
Use Compaq Storage Hub 12 Management Utilities (HMU) to check
bypass status.
Figure D-1 is an illustratio n showing LED s t atus indicator s.
Figure D-1. Reading The HMM LEDs
Error Messages
The followi ng error messages may display on the terminal console attached to
the hub. They will be generated by the hub self-tests and would display
immediatel y following the tests. The synta x i s nnnn /* xxxxxx */ where nnnn =
a 4-digit number and xxxxxx is a text string. Some are ju st info rmational while
others may indicate a probl em that should be checked. The section below lists
them in numerical order. In most cases, they are accompanied by a brief
explanatio n of the message followed by suggested acti on.
Page 96
Troubleshoo ti ng the Management Module D-3
Table D-1
Error Messages
Message Description Action
0000 /* No errors */ Information only. None
0001 /* Diagnostic in Progress */
0002 /* reserved */
information only none
information only none
0004 /* reserved */
0008 /* Watchdog Timer Pop */
0010 /* RAM Test */
0020 /* Flash Test */
1
1
0040 /* Serial EEPROM Test */
Processor Error Call Customer Service
Memory Fault Call Customer Service
Memory Fault Call Customer Service
Memory Fault Call Customer Service
0080 /* Reserved */
0100 /* Voltage Limit Test */ The measurement of voltage
to the power supplies has
not met specification.
0200 /* Fan Start Test */ One or more fans have
failed.
none
None
Corrective action: Verify AC input
voltage level. Power hub off and
then on. If message persists,
and AC input power level is
within specification, call
Customer Service.
Corrective action: Call Customer
Service.
continued
1
These are errors only if the console screen stops and goes no further.
Page 97
D-4 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Table D-1
Error Messages
continued
Message Description Action
0400 /* Temperature Limit Test */ The hub is operating at
above normal temperatures
and is no longer operating as
designed.
0800 /* reserved */ Corrective action: None.
1000 /* general hardware fault */ This message indicates that
there is a general hardware
fault.
Corrective action: Check to
make sure that the airway
supply is not blocked, preventing the free flow of cool air.
If it is, clear the airway and
restart the hub. Check to see if
an unrealistic temperature
threshold has been set from
HMU and correct if that is the
case. If the message persists,
call Customer Service.
Corrective action: Call Customer
Service.
Page 98
Communications
Commission Notice
Part 15 of the Federal Communications Commission (FCC) Rules and
Regulations has established Radio Frequency (RF) emission l i mits to provi de
an interference-free radio frequency spectrum. Many electronic devices,
including computers, generate RF energy incidental to their intended function
and are, therefore, covered by these rules. These rules place computers and
related peripheral device s into two classes, A and B, depending upon thei r
intended installation. Class A devices are those that may reasonably be
expected to be installed in a business or commercial environment. Class B
devices are those that may reasonably be expected to be installed in a
residential environment (personal computers, for example). The FCC requires
devices in both classes to bear a label indicating the interference potential of
the device as well as additional operating instructions for the user.
Appendix
E
Regulatory Compliance Notices
The rating label on the device shows which class (A or B) the equipment falls
into. Class B devices have an F CC logo or FCC ID on the label. Class A
devices do not have an FCC logo or FCC ID on the label. Once the class of the
device is determined, refer to the following corresponding statement.
Page 99
E-2 Compaq Storage Hub 12 Management Utilities Hardware and Software User Guide
Class A Equipment
This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio fr equency energy and, if not inst alled
and used in accordance with the instructions, may cause harmful interference
to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference, in which case the user will be required to
correct the interference at personal expense.
Class B Equipment
This equipment has been tested and found to comply with the limits for a Class
B digital devi ce, pursuant to Pa rt 15 of the FCC Rules. These limi ts are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipme nt generates, uses, and can radi ate radio
frequency energy and, if not installed and used in accordance with the
instructio ns, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
■ Reorient or relocate the receiving antenna.
■ Increase the separation between the equipment and receiver.
■ Connect the equipment i nto an outlet on a circuit diff erent from tha t to
which the receiver is connected.
■ Consult the dealer or an experienced r adio or television technic ian for
help.
Page 100
Declaration of Conformity for products marked
with the FCC logo - United States only
This device complies with Part 15 of the FCC Rules. Operation is s ubject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
For questions regarding y our product, c ontact:
Compaq Computer Corporation
P. O. Box 692000, Mail Stop 530 113
Houston, Texas 77269-2000
Or, call
1-800- 652-6672 (1-800-OK COMPAQ). For continuou s quality
improvement, calls may be recorded or monitored.
For questions regarding this FCC declaration, contact:
Compaq Computer Corporation
P. O. Box 692000, Mail Stop 510 101
Houston, Texas 77269-2000
Regulatory Compliance Notices E-3
Or, call
(281) 514- 3333
To identify this product, refer to the Part, Series, or Model number fou nd on
the product.
Modifications
The FCC requires the user to be notified that any changes or modifications
made to this device that are not expressly approved by Compaq Comput er
Corporation may void the user’s authority to operate the equipment.
Cables
Connections to this device must be made with shielded cables with metallic
RFI/EMI connector hoods in order to maintain compliance w i t h FCC Rules
and Regulations.
Loading...