HP NetRAID 1Si Controller User Manual

HP NetRAID Series

User Guide

HP Part Number 5969-5983

February 2000

Notice

The in formation contained in this document is subject to change without noti ce.

Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not

be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett-Packard.

This document con tains proprietary informati on th at is protect ed by copyrigh t. All rights are reserved. No part of this document may be photocopied, repr odu ced, or translated to another language without the pri or written cons ent of Hewlett-Packard Company.

Novell NetWare

is a registered trademark of the Int ernational Busin ess Mach ines

OS/2 Corporation.

SCO

, SCO OpenServer®, and UnixWare® are regi stered trademarks of Th e S an ta

Cruz Operation, Inc. Windows

in the U.S. and other countries.

is a registered tra d emark of Novell , Inc.

and Win d ows NT® are registered trademarks of Microsoft Corporation

Hewlett-Packard Company Network Server Divisi on Technical Communications/MS 45SLE 10955 Tantau Avenue Cupertino, CA 95014 USA

Audience Assumptions

This HP NetRA I D Series User Guide is for the person who installs, administers, and troubleshoots LAN servers. Hewlett-Packard Compan y assumes you are quali fied in the s er vi cing of comput er equipment and trained in recogn izing hazards in products with hazardous energy levels.

Contents

Introduction ..................................................................................................... 1

1 Overview of HP NetRAID Utilit ies................................................................ 3

HP NetRAID Assistant...................................................................................4

HP NetRAID Assistant Menus.................................................................... 5

HP NetRAID Config....................................................................................... 6

HP NetRAID Config Menus........................................................................ 7

HP NetRAID Express Tools........................................................................... 8

HP NetRAID Express Tools Menus............................................................ 9

HP NetRAID Utility Com pari son Chart.......................................................... 10

HP NetRAID Drivers and Utili ties................................................................. 13

2 HP NetRAID Assistant............................................................................... 15

Overview..................................................................................................... 15

A HP NetRAID Assistant Main Wi ndow....................................................... 15

B HP NetRAID Assistant Menu................................................................... 18

Configuration M enu ................................................................................. 19

Adapter Menu.......................................................................................... 20

Physical Drive Menu................................................................................ 21

Logical Driv e Menu.................................................................................. 23

Progress Menu........................................................................................ 25

Help Menu............................................................................................... 25

C Configuring Arrays and Logic al Dr ives..................................................... 25

Select the Adapt er to Configure............................................................... 27

Clear Configuration (if necessary)............................................................ 27

Check Rebuild Rate................................................................................. 27

Assign Global Hot Spar es........................................................................ 28

Select Wiza r d.......................................................................................... 28

Define Physical Arrays and Dedicated Hot Spares................................... 30

Assign Dedicated Hot S par es .................................................................. 31

Define Logic al Drives............................................................................... 32

Preview Configur ation.............................................................................. 35

Save Your Configurat ion and Initialize ..................................................... 37

D Managing RAID with HP NetRAID Assistant............................................ 39

Rebuildi ng a Failed Phy si c al Drive........................................................... 39

iii

Contents

Adding a Hot Spare................................................................................. 39

Adding a New Logical Drive..................................................................... 39

Changing Logical Drives Currently in Use................................................ 40

Reclaiming a Hot Spare........................................................................... 43

Changing Logical Drive Parameters......................................................... 43

Taking a Drive Offline/Online................................................................... 43

E Managing Servers Over the Net work ....................................................... 44

Before Starting HP NetRAID Assistant..................................................... 44

Start HP NetRAID Assistant..................................................................... 45

Select Another S erver-Adapter Pair......................................................... 46

Exit HP NetRAID Assistant...................................................................... 47

F Windows NT Monitor Servic e for HP NetRAID ......................................... 47

3 HP NetRAID Config.................................................................................... 49

Overview..................................................................................................... 49

A Starting and Exiting HP NetRA ID Config.................................................. 50

B HP NetRAID Config Management Menu Opti ons..................................... 50

Configure Menu....................................................................................... 51

Initiali ze Op tion........................................................................................ 51

Objects Menu.......................................................................................... 51

Format Option......................................................................................... 56

Rebuild Option......................................................................................... 56

Check Consistency Opt ion....................................................................... 56

Advanced Menu...................................................................................... 57

C Configuring Arrays and Logic al Dr ives..................................................... 57

Configuration M ethods............................................................................. 57

Using Auto Configuration......................................................................... 58

Using Easy Confi gur ation........................................................................ 60

Using New Configurati on ......................................................................... 62

Using View/Add Configuration ................................................................. 65

D Designating Drives as Hot Spares........................................................... 67

E Initializi ng Logic al Drives ......................................................................... 68

Batch Initialization.................................................................................... 68

Individual Initialization.............................................................................. 69

F Changing Logical Drives Currently in Use................................................ 69

Changing the RAID Lev el of a Logical Dr ive ............................................ 70

Removing a Physic al Drive from a Logical Drive...................................... 71

Reclaiming a Hot Spare........................................................................... 72

Contents

G Formatting Physical Drives...................................................................... 72

Media Errors............................................................................................ 72

Formatt ing Op tions.................................................................................. 73

4 HP NetRAID Express Tool s....................................................................... 75

Overview ..................................................................................................... 75

A Starting and Exiting HP NetRA ID Express Tools ...................................... 76

To start HP NetRAID Express Tools........................................................ 76

To exit HP NetRAID Express Tools.......................................................... 77

B HP NetRAID Express Tools Management Menu...................................... 77

Configure Menu....................................................................................... 78

Initiali ze Op tion........................................................................................ 78

Objects Menu.......................................................................................... 79

Format Option......................................................................................... 83

Rebuild Option......................................................................................... 84

Check Consistency Opt ion....................................................................... 84

Disable/Enable BIOS Option.................................................................... 85

Change Adapters Opti on ......................................................................... 85

Alarm Control Option............................................................................... 85

C Configuring Arrays and Logic al Dr ives..................................................... 85

Designating Drives as Global Hot Spares ................................................ 85

Creating Arrays Using Available Physical Drives...................................... 86

Initializing Logical Drives.......................................................................... 94

D Formatting Physical Drives...................................................................... 95

Media Errors............................................................................................ 95

Formatting Drives.................................................................................... 96

E Changing the HP NetRAID Series Adapt er .............................................. 96

5 Reconstructing and Rebuilding Drives..................................................... 99

Reconstructing Data.................................................................................... 99

Power Fail Safeguard Feature................................................................. 99

Rebuildi ng Data..........................................................................................102

The Autorebuil d Feat ur e.........................................................................102

Changing the Rebuild Rate.....................................................................103

Rebuildi ng Drives Manually ....................................................................104

6 Capacity Expansion..................................................................................107

Capacity Expansion under NetWare 4.2......................................................107

About Online Capaci ty Expansion under NetWare 4.2 ............................108

Contents

Planning for Onli ne Capac ity Expansion under NetWare 4.2...................110

Preparation Steps for NetWare 4.2.........................................................110

Expanding Capaci ty Online under NetWare 4.2 ......................................114

Expanding Capaci ty under NetWare 4.2 with Virtual Sizing Disabled.......116

Capacity Expansion under NetWare 5 ........................................................116

About Online Capaci ty Expansion under NetWare 5 ...............................117

Planning for Onli ne Capac ity Expansion under NetWare 5......................117

Preparation Steps for NetWare 5............................................................118

Expanding Capaci ty Online under NetWare 5.........................................120

Expanding Capaci ty under NetWare 5 with Virtual Sizing Enabl ed ..........123

Capacity Expansion under Windows NT .....................................................123

About Online Capaci ty Expansion under Windows NT ............................124

Preparation Steps for Windows NT.........................................................125

Expanding Capaci ty Online under Windows NT......................................128

Expanding Capaci ty under Windows NT with Virtual Sizing Disabl ed ......129

Capacity Expansion under Windows 2000 ..................................................130

About Online Capaci ty Expansion under Windows 2000 .........................130

Preparation Steps for Windows 2000......................................................131

Expanding Capaci ty Online under Windows 2000...................................133

Expanding Capaci ty under Windows 2000 with Virtual Sizi ng Enabl ed....135

7 Monitor Alert List......................................................................................137

Microsoft Windows NT and W indows 2000 .................................................137

Novell NetWar e Monitor Messages.............................................................137

IBM OS/2 Monitor Messages......................................................................138

SCO OpenServer and UnixW ar e Monitor M essages ...................................139

8 Alarm Control and Audible Warnings ......................................................141

Glossary........................................................................................................143

HP NetRAID Terms and Technology...........................................................143

Index..............................................................................................................151

Introduction

The HP NetRAID-1Si and HP NetRAID-3Si adapters and the integrated HP NetRAID controllers built into certain HP NetServers let you link multiple hard disk drives together to write data across them as if they were one large drive You configure your linked drives in a RAID (redundant array of independent disks) subsystem.

Initial installation and configuration of HP NetRAID Series adapters is described in the HP NetRAID Series Installation and Configuration Guide. Initial configuration of the integrated HP NetRAID controller is described in the HP NetServer Integrated NetRAID Controller Configuration Guide.

This HP NetRAID Series User Guide contains information on the HP NetRAID utilities that let you manage and make changes to an existing RAID system. This guide covers the following topics:

• Overview of HP NetRAID Utilities

• HP NetRAID Assistant (for Windows NT and Windows 2000)

• HP NetRAID Config (for Novell NetWare, IBM OS/2, and SCO

OpenS erver and UnixWare)

• HP NetRAID Express Tools (use with all supported network operating

systems)

• Reconstructing and Rebuilding Drives

• Capacity Expansion

• Monitor Alert List

• Alarm Control and Au dible Warnings

• Glossary

1 Overview of HP NetRA ID Utilities

Three HP NetRAID utilities can configure and manage HP NetRAID Series subsystems. Integrated HP NetRAID controllers and HP NetRAID Series adapters (HP NetRAID-1Si and HP NetRAID-3Si) use the same utilities. However, all utilities are not available to all network operating systems.

• HP NetRAID Assistant is used only with Microsoft Windows NT and

Windows 2000. (This utility is similar to the one that you ran from the HP NetServer Navigator CD-ROM to initially configure your HP NetRAID subsystem. )

• HP NetRAID Config is a text-based RAID configuration utility that runs

under Novell NetWare, IBM OS/2, SCO OpenServer, and SCO UnixWare.

• HP NetRAID Express Tools is a text-based RAID configuration utility

available to all operating systems. HP NetRAID Express Tools has some advanced features not available in the other utilities.

Table 1-1. HP NetRAID Management Utilities and Network Operating Systems

Network O perating

System

Microsoft Windows 2000 X X Microsoft Windows N T X X Novell NetWare X X IBM OS/2 X X SCO OpenServer X X SCO UnixWare X X

HP NetRAID

Assistant

HP NetRAID

Config

HP NetRAID

Express Tools

NOTE Consult the Hewlett-Packard World Wide Web site

(http://www.hp.com/go/netserver) or your local HP deal e r for compatibility of your adapter with the most current versions of the net wor k operating systems listed in th e preceding ta ble.

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRAID Assistant

HP NetRAID Assistant is an object-or iented GUI management utility. It runs under Microsoft Windows NT and Windows 2000, and it allows you to reconfigure and manage your HP NetRAID subsystem and to monitor its status.

For complete instructions on using this utility, see Chapter 2, "HP NetRAID Assistant," in this guide.

NOTE Users of al l operating systems run HP NetRAID Assistant from

the HP NetServer Navigator CD-ROM to configure their systems during initial installation.

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRA ID A ssistant M enus

Main Menu

Configuration Adapter Physical Drive Logical Drive Progress Help

Configuration Menu

Wizard Display Print Save Load Clear Configuration Exit

Adapter Menu

Update Firmware Flush Cach e Performan c e M onit or On/Off Properties Rebuild Ra te Rescan View Log Alarm Control

Alarm Control Menu

Disable/Enable Alarm Silence Alarm

Physical Drive Menu

Rebuild Format Update Drive Firmware Change Status Properties

Logical Drive Menu

Initialize Chec k C onsiste ncy Properties Change Co nf ig

Progress Menu

Rebuild Progress Diagnostic s Progress Initialize Progress Chec k C onsiste ncy Reconstru c tion Progress Performan c e M onit or

Help Menu

Help About...

Change Stat us Menu

Make Online Make Offline Spin Up Spin Down Make Hot Spare

Change Config Menu

Cache Read Write RAID Level Virtual Size Add Capacity

Figure 1-1. HP NetRAID Assistant Menus

(Alarm Control menu is not available for integrated HP NetRAID.)

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRAID Config

HP NetRAID Config is a character-based, non-GUI utility that runs under all supported operating systems other than Microsoft Windows NT and Windows 2000. HP NetRAID Config allows you to reconfigure and manage your HP NetRAID subsystem and to monitor its status.

HP NetRAID Config performs most of the same functions as HP NetRAID Assistant a s well as some addit ional ones, but it runs under Novell NetWar e, IBM OS/2, SCO OpenServer, and SCO UnixWare.

The command you use to start the HP NetRAID Config utility depends on which NOS you are using.

• For Novell Netware, type

• For IBM OS/2, type

• For SCO OpenServer, type

• For SCO UnixWare, type

For instructions on using this utility, see Chapter 3, "HP NetRAID Config," in this guide.

load megamgr

megaconf

megamgr

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRAID Config Menus

Management Menu

Configure Initialize Objects Format Rebuild Check Consistency Advanced Menu Select Adapter

Configure Menu

Automa tic Configur a tion Easy Configuration New Configuration View/Add/Delete Configuration Clear Configuration

Objects Menu

Adapter Logical Drive Physical Drive SCSI Channel Battery Backup

Adapter Menu

Clear Configuration View Adapter Performance Power Fail Safeguard Disk Spin-up Timings View/Update Parameters Adapter Type Alarm Control

Logical Drive Menu

Initialize Check Consistency View Performance Properties

Physical Drive Menu

Rebuild Format Make Onlin e Fail Drive Make Hot Spare Properties View Rebuild Progress

SCSI Channel Menu

Deactivate Channel Activate Channel Terminate High 8 Bits

Advanced Menu

Reconstruct Logical Drive

Terminate Wide Channel Disable Termination View Parameters

Figure 1-2. HP NetRAID Configuration Menus

(Alarm Control menu is not available for integrated HP NetRAID. Battery

Backup menu is not available for HP NetRAID-1Si or for integrated

HP NetRAID if Battery Backup Module is not present.)

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRAID Express Tools

HP NetRAID Express Tools is available to all network operating systems because this utility is contained in the firmware. HP NetRAID Express Tools contains some adv anc ed management and diagnostic utilities that are not available with HP NetRAID Assistant or HP NetRAID Config.

NOTE To access HP NetRAID Express Tools you must restar t the

HP N e tServer.

To start HP NetRAID Express Tools:

1. Log off all users, close all applications, and power down the HP NetServer.

2. Restart the HP NetServer.

3. When th e following pr om p t appears, press <Ctrl> <M>.

Option: Experienced users may press <Ctrl> <M> for HP NetRAID Express Tools now. Firmware Initializing

For complete information on this utility, see Chapter 4, "HP NetRAID Express Tools," in this guide.

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRA ID E xpress Tools Menu s

T ools Manage me nt Menu

Configure Initialize Objects Format Rebuild Check Consistency Disable BIOS Change Ad apters Alarm Control

Configure Menu

Easy Configuration New Configuration View/Add/Delete Configuration Clear Configuration

Objects Menu

Adapter Logical Drive Physical Drive SCSI Channel Battery Backup

Adapter Menu

Reset to Default Settings Power Fail Safeguard Memory Type Read Modify Write Mode Change Disk Geometry Disk Spin-up Timings Cache Flush T imings View/Update Rebuild Rate Diagnostics Adapter Type Emulation Auto Rebuild Initiator ID

Logical Drive Menu

Initialize Check Consistency Properties

Physical Drive Menu

Rebuild Format Make Online Fail Drive Make Hot Spare Properties Synchronous Negotiation SCSI-2 Command Tagging

SCSI Channel Menu

Terminate High 8 Bits Terminate Wide Channel Disable T ermination Automatic Termination SCSI Transfer Rate

Figure 1-3. HP NetRAID Express Tools Menus

(Alarm Control menu is not available for integrated HP NetRAID. Battery

Backup menu is not available for HP NetRAID-1Si or for integrated

HP NetRAID if Battery Backup Module is not present.)

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRAID Utility C ompa ris on C ha rt

The three HP NetRAID utiliti es (HP NetRAID Assistant, HP NetRAID Config, and HP NetRAID Express Tools) perform many of the same fun cti on s, but they are not identical.

Parameters with default values and functions that are not shared by each of these utilities are listed in the Table 1-2. (Most functions common to all three utilities are not listed.)

Table 1-2. Comparison of Available Functions of HP NetRAID Utilities

Defaults*

(if

Function/Selection

Ada pter Typ e X X Add Capacity X X Alarm Control HP NetRAID-1Si &

HP NetRAID-3Si Integrated HP NetRAID Autorebuild Enabled* X Battery Backup (HP NetRAID-3Si &

with Battery Backup Module in HP NetServer LH 3000/3000r, LH 6000/6000r & LT6000r)

Cache Flush Timings 4 seconds* X Cache Policy Cached* X X X Change Disk Geome try 8 GB* X X X Channel Activate/Deactivate Activated* X Diagnostics X Disable BIOS NO* X Disk Spin-Up Timings Automatic* X X Emulation (Sets PCI Class Code to

O or M ass Storage m ode)

Initiator ID 7* X

applicable)

Enable*

Not Available

Mass

Storage*

HP NetRAID Assistant

XXX

NetRAID

Config

NetRAID

Express

Tools

Chapter 1 Overview of HP NetR AI D Utilitie s

Memory Type HP NetRAID-1Si HP NetRAID-3Si & integrated

EDO*

Not Available

HP NetRAID Power Fail Safeguard Enabled* X X Print Config X RAID Level X Read Modify Write Mode OFF* X Read Policy Adaptive* X X X Rebuild Rate 50%* X X X Reset to Default Settings X Save/Load Config from File X SCSI-2 Command Tagging

Enhanced

Qtag

Scheduling* SCSI Termination HP NetRAID-3Si & HP NetS er ver

LH 3000/3000r, LH 6000/6000r & LT 6000r

HP NetRAID-1Si & HP NetS er ver

Terminate

Wide

Channel*

Not Available

LH 3/3r & 4/4r SCSI Transfer Rate Ultra-2* X Span NOSPAN* X Spin Down/Spin Up X Synch ronous Negotiation Ena bled* X Stripe Size 64 KB* X X X Update Drive Firmware X View/Add/Delete Config X X View Log X Virtual Sizing Disabled* X Write Policy HP NetRAID-1Si & HP NetServer

LH 3/3r & LH 4/4r HP NetRAID-3Si & HP NetS er ver

LH 3000/3000r, LH 6000/6000r & LT 6000r

Write-

Through*

Write-Back*

(See note

below table.)

XXX

Chapter 1 Overview of HP NetR AI D Utilitie s

NOTE Write-Back means that data is written to disk only when it is

forced out of the ca ch e. Write-Back is efficient because an entry may be written many times in the cache without a disk access. While thi s setting in cr eases performance, da ta can be lost if power fails.

Write- Back is NOT recom mended un less one of the fol lowing is true:

• The HP NetRAID adapter is an HP NetRAID-3Si, which

has a Battery Backup Unit.

• Your system is equipped with a UPS (uninterruptible

power supply).

• Your system is an HP NetServer LH 3000/3000r,

LH 6000/6000r, or LT 6000r that is equipped with a charged accessory Battery Backup Module.

Write-Back is not certified for any logical drive used as a Novell NetWare volume.

Chapter 1 Overview of HP NetR AI D Utilitie s

HP NetRAID Drivers and Utilities

Table 1-3 lists the filenames of drivers and utilities specific to your network operating system (NOS). For information on installing drivers and configuration utilities for HP NetRAID, see the HP NetRAID Installation and Configuration Guide or the HP NetServer Integrated NetR AID Controller Configuration Guide.

Table 1-3. HP NetRAID Drivers and Utility Files for Network Operating Systems

Network Operating

System

Drivers

Microsoft Windows 2000 mraid35x.sys megaserv.exe

Monitor Utilities

Configuration

Utilities

nraid.exe

megactrl.exe

Micr oso ft Windows NT mraidnt.sys megas erv.exe

nraid.exe

megactrl.exe Novell NetWare 4.2 and 5 (Conventional, non-I

Novell NetWare 4.2 and 5

O support)

Mega4_xx.ham Mega4_xx.ddi

HP NetRAID I mril4_xx.ham

O OSM

Megamon.nlm Megamgr.nlm

IBM OS/2 mraid.add monitor.cmd megaconf.exe SCO OpenServer amird amirdmon megamgr SCO UnixWare mega amirdmon megamgr

2 HP NetRAID Assistant

Overview

HP NetRAID Assistant is an object-or iented, graphical user int erface (GUI) management utility that runs under Microsoft Windows NT or Windows 2000. HP NetRAID Assistant allows you to control an d monitor the status of hard disk drives on t he local HP NetSer ve r or over a network with s eve ral servers.

This section provides the following information:

A. HP NetRAID Assistant Main Window

B. HP NetRAID Assistant Menu Options C. Using the Wizard to Configure Arrays and Logical Drives D. Managing RAID with HP NetRAID Assistant

E. Managing Servers Over th e Network

F. Windows NT Monitor Service for HP NetRAID (also for Windows 2000)

A HP NetRA ID Assistant Main Window

Start HP NetRAID Assistan t.

• To start HP NetRAID Assistan t un d er Windows 95 or 98, click the

NetRAID Assistant icon in the NetRAID pr ogram gr oup (or group you specified).

• To start HP NetRAID Assistant under Windows NT or Windows 2000,

click the Start button, p oint to Programs, point t o NetRAID in the Programs menu, and click NetRAID Assistant.

Figure 2-1 shows an example of th e main window of HP NetRAID Assistan t.

NOTE Since HP NetRAID-1Si is a single-channel adapter, the

HP NetRAID Assistant Main win d ow for HP NetRAID-1Si contains only Channel 0 information. In HP NetServer LH 3/3r and LH 4/4r, the integrated HP NetRAID controller can show either one or two channels depending upon h ow many channel s you enabled for HP NetRAID. Integrated HP NetRAID controllers in other HP NetServers show two channels.

Chapter 2 HP NetRA I D Assi stant

Help

MISCELLANEO US

Configuration Menu

Server Selector

Physical Drives

Adapter Menu

Physical Drive Menu

Logical Drive Menu

Adapter Selector

Progress Menu

Figure 2-1. HP NetRAID Assistant Main Window

The HP NetRAID Assistant win dow contains the following elements:

Toggle Between Views

• Menu bar: The menu bar activates pull-down menus for Configuration,

Adapter, Physical Drives, Logical Drives, Progress, and Help.

• Toolbar: The toolbar icons, which are shown in Figure 2-2, are separated

into four categories of functions: Configuration, Properties, Miscellaneous, and Oth er . They provide shortcut s to a ccess the menu op tions.

Display

Wizard

Clear

CONFIGURATION

Figure 2-2. HP NetRAID Assistant Main Menu Toolbar Options

Adapter

Physical Drv

Logical Dr v

PROPERTIES

Rebuil d Ra te

Rescan

View Log

Exit

Help

OTHER

Chapter 2 HP NetRA I D Assi stant

• Server Selector box: The Server Select or box shows the name of the

current server . If HP NetRAID Assistant is started on a client or server over the network, you must select the server you want to access from the pull-down list.

• Adapter box: The Adapter box shows the number of the current adapter. If

the HP NetServer con tains mor e than one adapter , you can chan g e the current adapter by using the Adapter box pull-down list.

• Physical Devices box: The Physical Devices box contains either one

channel column (for an HP NetRAID-1Si adapter), one or two channel columns (for an integrated HP NetRAID controller), or three channel columns (for an HP NetRAID-3Si adapter), which show the physical drives on the SCSI channels of the current adapter. The number in parentheses to the right of each physical drive icon is its SCSI ID (Target) on th e chan nel.

NOTE For internal mass storage in HP NetServer LH 3000/3000r,

LH 6000/6000r, and LT 6000r, SCSI ID 5 is reserved for the SAF-TE processor that manages the hot-swap mass storage cage.

For an external mass st orag e encl osure with a SAF-TE processor, a SCSI I D i s reserved for that process or. The number of the reser ved S C SI ID varies with the type of external enclosu re.

The SAF-TE processor is displ ayed in the Physical Devices box with the rectangular green icon that is used for adapters.

The sta te of each physical drive appears to the right of the SCSI ID or arra y designation. The possible states of a physical drive are as follows:

◊ Onln: The physical drive is online, functioning normally, and part of a

conf igu re d logical d riv e.

◊ Ready: The physical drive is functioning normally, but is not part of a

configured logical drive, nor configured as a hot spare.

◊ HotSp: Th e dr ive is config ured as a hot spare, and is powered up and

ready for use as a spare in case an online drive fails.

◊ Failed: The physical drive failed and is out of service. ◊ Rebuilding: The drive is in t he proce ss of being rebuilt with data from

a failed drive.

Chapter 2 HP NetRA I D Assi stant

• Logical Devices box: The Logical Devices box shows the current adapter

and its global hot spare pool. When arrays, logical drives, and hot spares have been defined, they are displayed here. Clicking on Logical View or Physical View switches between showing logical drives and physical drives. Clicking on the + sign in the yellow diamond expands the view if it is collapsed (physical or logical drives, or hot spares are hidden).

The possible states of a logical drive are as follows:

◊ Online: All participating physical disks are online. ◊ Degraded: (Critical) A single physical disk in a redundant array (not

RAID 0) in not online. Data loss may result if a second physical disk fails.

◊ Offline: Two or more physical disks in a redundant array (not RAID 0)

or one or more physical disks i n a RAID 0 a rray are not online.

• Status line: The status line at the bottom of the window shows the

pr ogress of the s c a n requ i red to build the di s plays on the HP NetRAI D Assistant window. It also suggests possible actions.

B HP NetRAID A ssistant Menu

HP NetRAID Assistant offers several menu options to assist you in configuring and monitoring RAID systems. The menu options are listed below in the order they appear on the HP NetRAID Assistan t menu bar:

• The Config urat i on menu lets you create, display, print, clear, and save

your configuration of arrays and logical drives.

• The Adapter menu lets you view and change settings specific to each

adapter or integrated HP NetRAID controller.

• The Physical Drive menu lets you rebuild, format, view properties, or

change the status of a physical drive.

• The Logical Drive menu lets you initialize, check consistency, view

properties, and change the status of a logical drive.

• The Progre ss menu lets you view various utility monitors.

• The Help menu provides additional instructions about HP NetRAID

Assistant.

Chapter 2 HP NetRA I D Assi stant

Configuration Menu

The following Configuration menu options assist you in configuring your HP NetRAID system.

• Wizard: Lets you configure the arrays, logical drives, and parameters of

your s ystem . For comp lete inform ation on the Wi zard, see Part C of this chapter, "Using the Wizard to Configure Arrays and Logical Drives."

• Display: Displays the current configuration properties:

◊ Logical drive properties include State, RAID Type, Write Policy, Read

Policy, Cache Policy, Stripe Size, Number of Stripes, Size (in MB)

◊ Physical drives properties include Rank, Channel, and Target (SCSI)

• Print: Prints a hardcopy of the current configuration display.

• Save: Saves the current configuration to a binary file. A dialogue box

prompts you to give your configuration a file name with a Clicking an X in the Read Only box makes the file read only. This option is not an alternative to saving your configuration by using the Wizard.

NOTE You should always save your current configuration to a file.

This file is essential if you ever have to replace a failed adapter.

.cfg

extension.

• Load: Loads a configuration from a previously saved binary file. A

dialogue box pr ompts you to ch oose your configuration from amon g files in the directory. Use this option if you are replacing a failed adapter. This selection does not cause a reconstruction to occur.

.cfg

• Clear Configuration: Select this option to erase the current configuration

information from the selected adapter’s non-volatile memory. The current RAID configuration becomes invalid after you select this option. This

option should be used only when configuring a new system.

NOTE If you have i nadvertently er ased you r configuration, you can

recover it by immediately loading a previously saved configuration. If you do not have a file copy of the previous configu ration, you ca n reconfig u re the physica l drives into the exact same array and logical drive structure in which they had been, and save the configuration. Do not select the Initialize menu selection.

Chapter 2 HP NetRA I D Assi stant

• Exit: Select this option to quit HP NetRAID Assistant. You cannot exit if

disk operations are ongoing.

NOTE New con fi g u rations are not saved when exiting unless you

saved them by using the Wizard.

Adapter Menu

The options on the HP NetRAID Assistan t Adapter menu are described below.

• Update Firmware : This selection is not available.

• Fl ush Ca c he : Writes all data in cache to physical drives. The

HP NetRAID system allows logical drives to be configured in write-back mode. If configured in this mode, data is retained in cache and is not immediately written to the physical drives. If your system is configured for write-back mode, and if the adapter must be powered down rapidly, you must flush the contents of the cache memory to preserve data integrity.

• Performance Monitor On /Of f: Displays a graphic representation of the

performance of the logical drive you select. To use this selection, first click the left mouse button on a drive icon and then select Performance Monitor. Performance for each logical drive is displayed in two ways: as the data tran s fer rate and a s the number of I/O operations per second. Y ou can choose different logical drives, the type of graph (bar or line), and the window arrangement from the Performance Monitor menus.

• Properties: Displays the adapter properties, including the firmware and

BIOS ve rsions, the rebuild rate, and cache memory size.

• Rebuild Rate: Sets the rebuild rate for rebuilding a failed drive. The

rebuild rate determines the percentage of IOP (input/output processor) resources devoted to the rebuild. A 100% rebuild rate means that 100% of

the IOP’s resources are applied to the rebuild, leaving no re s ources available for other tasks until the rebuild is complete. The default rebuild rate is 50 %.

• Rescan: Reads the current configuration for the currently selected adapter.

It displays the updated configuration on the main window of HP NetRAID Assistant. Use this selecti on if any physical drives were moved, added, removed, changed, or whose state changed after HP NetRAID Assistant was started.

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• View Lo g: Displays the contents of the View Log File, which records

adapter activities and conditions such as battery backup charge, logical drive properties, and changes to configurations along with the date and time changes are made.

• Al a r m Control: Changes the onboard tone generator settings as described

below. (This option is not available with the integrated HP NetRAID controller.)

◊ Enable/Disable Alarm: Enables or dis ables the onboard t one

generator. The default setting is Enabled.

◊ Silence Alarm: Stops the alarm when it goes off. To silence a

sound ing alarm, ch oos e Al a r m Control and Silence Alarm.

For complete information, see Chapter 8, "Alarm Control and Audible Warnings."

Physical Dr ive M enu

The Physical Drive menu options are described below.

• Rebuild: Rebu ilds one or m ore fai led disk dri ve s . Cli c k Cance l to stop the

rebuild process at any time. The drive returns to its original status before the rebuild beg an. A config urati on of RAID level 1, 3, 5 , 10, 30 or 50 has built-in redundancy. If a drive in one of these RAID groups fails, the RAID subsystem continues to work but no additional redundancy is provided. Another drive failure will take the logical drive offline. Rebuilding the failed drive replaces and adds it into the RAID system. The rebuild process can take place while the RAID system is still running, although performance may be affected.

• Format: Low-level formats one or more physical drives. You can format a

drive only if it is in the Fail or Ready state and is not part of any configuration.

Since most SCSI disk drives are low-level formatted at the factory, this step is usually not necessary. You must format a disk only if:

◊ The disk drive was not low-level formatted at the factory. ◊ Ther e is an exces s ive number of media errors detect ed on the disk

drive.

NOTE You do not need to use the Format option if you simply want to

erase existing information on your hard drives, such as a DOS partition. That information is erased when you choose Initialize from the Logical Drive menu to initialize the logical drive(s). Hewlett-Packard drives are factory- formatted .

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• Update Drv Firmware: This se lection is no t available.

• Change Status: Changes the status of the ph ysical drive:

◊ Make Online: Puts the drive online and available to the adapter. ◊ Make Offline: Puts the drive offline and unavailable to the adapter. ◊ Spin Up: Sets the method and timing for spinning up the hard disk

drives.

◊ Spin Down: Sets the method and timing for spinning down the hard

disk drives.

◊ Make Hot Spare: Makes a hot spare of the drive you selected. To use

this selection, first click on the drive icon, then select Make Hot Spare.

• Properties: Displays the physical drive properties of a selected drive. The

properties include Device Identification, Device Attributes, and Device Error.

Physical Drive Right Mouse Button Menu

To access this menu, select (and highlight) a physical drive in the Physical Devices box, then click the right mouse button. The following popup menu options appear :

• Rebuild

• Abort Rebuild

• Format

• Tools

◊ Make Online ◊ Make Hot Spare ◊ Fail Drive ◊ Spin Down (used to spin down the motor of a disk drive) ◊ Spin Up (used to spin up the motor of a disk drive)

• Firmware Download (not available)

• Remove (not available)

• Properties

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Logical Dr iv e Men u

The Logical Drive menu options are described below.

• Initialize: Initializes one or more logical drives. To initialize one or more

drives, first select the logical drive(s) to be initialized, then choose Initialize.

After configuration, a logical drive must be initialized before it can be used. This option initializes the logical drives by writing zeros to the data fields and generating corresponding parity fields on drives with RAID levels 3, 5, 10, 30, or 50.

CAUTION HP NetRAID Assistant all ows you to initi al ize a drive at any

time. Make sure that the drive being initialized does not hold active data. All data will be lost when you choose the Initialize menu selection.

• Che ck Consistency: Ensures that parity or mirroring is correct for the

selected d rives. C lick on the drive to be checked ( LD 0 - LD 7 ) . RAID levels 3, 5, 30, and 50 use an extra drive to store parity data blocks; parity is checked between these parity da t a blocks an d the selected dr ives. RAID levels 1 and 10 use duplicate data drives (mirroring); the duplicate data is verified.

Check Consistency should be run if the system shuts down irregularly, such as after a power failure. I t is also rec ommended that yo u run consis t ency checks e very two to four weeks to ensu re that bad bl ocks on the disk drive are mapped out. Check Consistency always remedies inconsistencies. Check Consistency will fail only if the firmware could not complete parity and data writes due to a power-failure or a system hang, or because the logical drive degraded or failed when a physical drive went offline.

You can use a Windows NT Monitor Service for HP NetRAID Series adapters to schedule and perform Consistency Checks automatically. For more information, see Part F of this chapter, "Windows NT Monitor Service for HP NetRAID."

• Properties: Displa ys the logical drive properties of the selected logical

drive. Each logical drive can be displayed by selecting the Previous or Next buttons.

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• Change Config: Changes the parameters of a logical drive. To use this

option, first select the logical drive or drives to change, then click Change Config.

◊ Cache: There are two Cache policies :

∗ Direct I/O specifies that only repeated reads to same locations are

cached.

∗ Cached I/O specifi es that all r ead s are cached.

◊ Read: There are three Read policies:

∗ Read Ahea d tells the adapter to read sequentially ahead of

requ ested data and cache the fur ther data in m emory, anticipatin g that the further data will be requested.

∗ Normal specifies that the controller does not use Read-Ahead for

the cur rent logica l drive.

∗ Adapti ve Read Ahead specifies that the adapter begins u s ing

Read-Ahead if th e two most recent d isk accesses occurred in sequential sector s.

◊ Write: There are two Write policies:

∗ Write-Back specifies that data is written to disk only when it is

forced out of the ca ch e. Write-back is efficient, because an entr y may be written many times in the cache without a disk access.

∗ Write-Through specifies that data is written to disk at the same

time as it is cached. Write-Through caching has a data security advan tage over Write-Back ca ch ing.

◊ RAID Level: This op t ion allows you to cha nge the RAID level. ◊ Virtual Size: This selection is not available. Use HP NetRAID Express

Tools to enable the Virtual Sizing parameter.

◊ Add Capacity: Use this option to add a physical disk to the logical

drive. HP NetRAID reconstructs your data to incorporate the new physical drive into the array.

Logica l Dr iv e Ri g ht Mo use B ut ton Me nu

To access this menu, select (highlight) a logical drive in the Logical Devices box and click the right mouse button. The following pop-up menu options appear:

• Delete (deletes the last array created, one at a time)

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