HP LUN Configuration Manager XP Software User Manual

HP StorageWorks LUN

Configuration Manager XP

user’s guide

XP48

XP256

XP512

fourth edition (November 2003)

part number: B9335-96002

This guide explains how to use the HP StorageWorks LUN Configuration Manager XP software.

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Printed in the U.S.A.

HP StorageWorks LUN Configuration Manager XP: user’s guide

fourth edition (November 2003) part number: B9335-96002

2 HP StorageWorks LUN Configuration Manager XP: user’s guide

About this guide 5

Intended audience 5 Disk arrays 5 Related documentation 5 Conventions 6 Getting help 6 HP technical support 7 HP storage website 7

HP authorized reseller 8 Revision history 9 Warranty statement 10

1Introduction13

Installation requirements 14 Important terms and concepts 15

2 Installation 17

Installing LUN Manager on the XP256 18 Installing LUN Manager on the XP512 20

3Operation23

Starting LUN management operations 24 Adding and deleting SCSI/Fibre Channel paths 27

Adding SCSI/Fibre Channel paths 27

Deleting SCSI/Fibre Channel paths 31 Setting the host mode 36 Setting/resetting a command device 41

Contents 3

Configuring Fibre Channel ports 47

Setting the Fibre Channel port address 47 Setting Fibre Channel topology 55

LU size expansion 59

Creating expanded LUNs 61 Expanding dispersed LUNs 67 Releasing an expanded LUN 74 Changing the size of an expanded LUN 78

4 VSC operations 79

VSC parameters 81

VSC specifications 81 Custom volume capacity 82 Storage subsystem ID (SSID) requirements 82

XP256 VSC operations 83

Starting VSC operations 84 Viewing VSC configuration information 85 Converting a normal volume to a VSC volume 86 Configuring new volumes 91 Installing custom volumes 97 Deinstalling custom volumes 102 Converting a VSC volume to a normal volume 108

XP512 VSC operations 113

Starting VSC operations 113 Viewing VSC configuration information 115 Converting logical volumes to space 120 Defining and installing custom-sized volumes 125 Configuring new volumes 128 Deleting VSC volumes 133 Converting a VSC volume to a normal volume 134

5Troubleshooting137

Error conditions 138 Calling the HP Support Center 138

Glossary 139

Index 143

4 HP StorageWorks LUN Configuration Manager XP: user’s guide

About this guide

This guide explains how to use the HP StorageWorks LUN Configuration Manager XP option.

Intended audience

Intended users of this guide are system administrators who have expertise with the associated systems and software and these related topics:

• data processing concepts

• direct-access storage device subsystems and their basic functions

• disk arrays and RAID technology

• operating system commands and utilities

Disk arrays

Unless otherwise noted, the term disk array refers to any of these products:

HP Surestore Disk Array XP256 HP Surestore Disk Array XP512 HP Surestore Disk Array XP48

Revision history

May 5, 1999 Published original edition for XP256.

June 1, 2000 Added support for XP512.

November, 2003 General update.

Reformatted as a separate manual.

About this guide 9

Warranty statement

HP warrants that for a period of ninety calendar days from the date of purchase, as evidenced by a copy of the invoice, the media on which the Software is furnished (if any) will be free of defects in materials and workmanship under normal use.

DISCLAIMER EXTENT ALLOWED BY LOCAL LAW, THIS SOFTWARE IS PROVIDED TO YOU “AS IS” WITHOUT WARRANTIES OF ANY KIND, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. HP SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, NON-INFRINGEMENT, TITLE, ACCURACY OF INFORMATIONAL CONTENT, AND FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow exclusions of

implied warranties or conditions, so the above exclusion may not apply to you to the extent prohibited by such local laws. You may have other rights that vary from country to country, state to state, or province to province.

WA R NI N G THAT USE OF THE SOFTWARE IS AT YOUR SOLE RISK. HP DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THE SOFTWARE WILL MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED, VIRUS-FREE OR ERROR-FREE, OR THAT DEFECTS IN THE SOFTWARE WILL BE CORRECTED. THE ENTIRE RISK AS TO THE RESULTS AND PERFORMANCE OF THE SOFTWARE IS ASSUMED BY YOU. HP DOES NOT WARRANT OR MAKE ANY REPRESENTATIONS REGARDING THE USE OR THE RESULTS OF THE USE OF THE SOFTWARE OR RELATED DOCUMENTATION IN TERMS OF THEIR CORRECTNESS, ACCURACY, RELIABILITY, CURRENTNESS, OR OTHERWISE. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY HP OR HP’S AUTHORIZED REPRESENTATIVES SHALL CREATE A WARRANTY.

. EXCEPT FOR THE FOREGOING AND TO THE

! YOU EXPRESSLY ACKNOWLEDGE AND AGREE

10 HP StorageWorks LUN Configuration Manager XP: user’s guide

LIMITATION OF LIABILITY. EXCEPT TO THE EXTENT PROHIBITED BY LOCAL LAW, IN NO EVENT INCLUDING NEGLIGENCE WILL HP OR ITS SUBSIDIARIES, AFFILIATES, DIRECTORS, OFFICERS, EMPLOYEES, AGENTS OR SUPPLIERS BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR OTHER DAMAGES (INCLUDING LOST PROFIT, LOST DATA, OR DOWNTIME COSTS), ARISING OUT OF THE USE, INABILITY TO USE, OR THE RESULTS OF USE OF THE SOFTWARE, WHETHER BASED IN WARRANTY, CONTRACT, TORT OR OTHER LEGAL THEORY, AND WHETHER OR NOT ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Your use of the

Software is entirely at your own risk. Should the Software prove defective, you assume the entire cost of all service, repair or correction. Some jurisdictions do not allow the exclusion or limitation of liability for incidental or consequential damages, so the above limitation may not apply to you to the extent prohibited by such local laws.

NOTE

. EXCEPT TO THE EXTENT ALLOWED BY LOCAL LAW,

THESE WARRANTY TERMS DO NOT EXCLUDE, RESTRICT OR MODIFY, AND ARE IN ADDITION TO, THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE LICENSE OF THE SOFTWARE TO YOU; PROVIDED

, HOWEVER, THAT THE CONVENTION ON CONTRACTS FOR THE INTERNATIONAL SALE OF GOODS IS SPECIFICALLY DISCLAIMED AND SHALL NOT GOVERN OR APPLY TO THE SOFTWARE PROVIDED IN CONNECTION WITH THIS WARRANTY STATEMENT.

About this guide 11

12 HP StorageWorks LUN Configuration Manager XP: user’s guide

Introduction

LUN Configuration Manager XP enables you to define the SCSI-to-logical device (LDEV) paths for the disk array using the remote console PC. Each LDEV can be mapped for access from multiple ports or multiple target IDs to provide alternate paths for continuous data availability.

LUN Configuration Manager XP allows you to reconfigure the SCSI/Fibre Channel paths at any time to optimize disk array performance and accommodate system configuration changes, such as adding a host.

To maximize data access capabilities, the logical unit size expansion (LUSE) feature allows you to create virtual logical units that are larger than standard LUNs. These logical units can also be released.

Introduction 13

Installation requirements

See your HP account representative for specific requirements.

The system requirements for the LUN Configuration Manager XP software are as follows:

• HP StorageWorks Remote Control XP installed on system

• LUN Configuration Manager XP software license keys needed to enable the feature—LUNM and LUSE

• HP Surestore Disk Array

• Remote console PC with Windows 95, Windows 98, Windows NT, Windows 2000, or Windows XP

14 HP StorageWorks LUN Configuration Manager XP: user’s guide

Important terms and concepts

You should be familiar with the following terms and concepts:

• controller

The disk array has one controller which controls data access and storage operations. The disk array controller supports OPENemulation modes.

• CU (control unit)

Each CU controls up to 256 LDEVs (XP256) or 512 LDEVs (XP512). The CUs are numbered sequentially from 0 to E.

• LDEV (logical device)

An LDEV results when a RAID group is divided into parts according to the emulation mode selection (OPENLDEVs depends upon the selected emulation mode.

• parity group

A parity group is a set of hard disk drives that have the same capacity and are treated as one group. For example, a parity group of 18-GB disk drives in a RAID5 configuration consists of four disk drives (three data and one parity).

x). The number of resulting

•volume

An LDEV can also be called a volume. The LDEV ID is internal to the disk array and is not related to the volume serial number (volser) or LUN number.

•path

A SCSI or Fibre Channel port ID, a SCSI target ID (TID), and a LUN number.

Introduction 15

16 HP StorageWorks LUN Configuration Manager XP: user’s guide

Installation

LUN Configuration Manager XP is an option and requires a license key. You must have either the LUNM and LUSE key floppy disks (XP256) or text string keys for LUMN and LUSE (XP512).

To perform the installation, HP StorageWorks Remote Control XP (RC) software must be installed, and you must have RC administrator privileges.

LUN Configuration Manager XP must be installed before you can install the LUSE (LUN Size Expansion) or LUN Security options.

The installation procedure for LUN Configuration Manager is different for the XP256 and the XP512. See the section in this chapter that matches your system.

Installation 17

Installing LUN Manager on the XP256

LUN Manager is an option and the license keys must be purchased. Before you begin, be sure you have the key disk for LUN Configuration Manager and LU Size Expansion.

To install the LUN Manager on an XP256:

1. Log in as an administrator.

2. On the Remote Console Main window, select Option to open the Option Product window.

This window shows the current installation status of the RC options.

3. Select “Remote LUN Configuration Manager 1” (LUN Configuration Manager) and “Remote LUN Configuration Manager 2” (LU Size Expansion) from the option list. These options install both LUN Manager and LU Size Expansion.

4. Select the Install button.

5. Select the Close button.

You are prompted to insert the LUNM and LUSE key floppy disks.

6. Insert the LUMN key disk in the floppy drive.

7. Select OK.

18 HP StorageWorks LUN Configuration Manager XP: user’s guide

8. Insert the LUSE key disk in the floppy drive.

9. Select OK.

When this option installation is complete, the Option Product window opens and the displayed status of the selected option changes from Not install to Install.

10. Select Close to return to the Remote Console Main window.

Installation 19

Installing LUN Manager on the XP512

LUN Manager is an option and the license keys must be purchased. Before you begin, be sure you have the license keys for LUN Configuration Manager and LU Size Expansion.

To install the LUN Manager on an XP512:

1. Log in as an administrator.

2. On the Remote Console Main window, select Option to open the Option Product window.

This window shows the current installation status of the RC options.

3. Select “Remote LUN Configuration Manager 1” from the option list to install LUN Configuration Manager.

4. Select the Install button.

The Input Key Code window opens.

20 HP StorageWorks LUN Configuration Manager XP: user’s guide

5. Enter the license key (password) in the Key Code text box for LUN Configuration Manager.

6. Select OK

If the password is approved, the Program Product window opens.

This window shows the product name—LUNM, model name (for example, P-242R-E4241), key kind (for example, Permanent), and effective term (for example, Free).

7. After confirming the content of the Program Product window, select OK.

When this option installation is complete, the Option Product window opens and the displayed status of the selected option changes from Not install to Install.

8. Select “Remote LUN Configuration Manager 2” from the option list to install LU Size Expansion.

9. Repeat steps 5 through 7 for LU Size Expansion.

10. Select Close to return to the Remote Console Main window.

Installation 21

22 HP StorageWorks LUN Configuration Manager XP: user’s guide

Operation

LUN management operations can be performed by users with administrator or custom access privileges. Users without these privileges can only view the SCSI path information for attached disk arrays.

LUN management operations include:

• starting LUN Manager

• adding and deleting SCSI paths

• setting the host mode

• setting and resetting the command device

• configuring the Fibre Channel

• creating and releasing expanded LUNs

Operation 23

Starting LUN management operations

To start LUN management operations:

1. Start and log in to the HP StorageWorks Remote Control XP (RC) program.

2. Select the Connect button.

3. Select a disk array to be managed in the Connect window.

4. Select the Connect button to connect the disk array.

5. Select LUN Management to start LUN management operations.

After the disk array is connected, the RMSCSI window opens.

6. Select a mode from the Path pull-down menu.

HP StorageWorks LUN Configuration Manager XP: user’s guide

7. The LUN Management-LDEV Configuration window opens.

Define(Offline) The disk array is not servicing I/Os-to-LUNs on

ports that are being modified. You can add or delete paths and modify port configurations.

Define(Online) The disk array continues to service all I/Os. You

can only add new paths.

Reference The array continues to service all I/Os. No

changes are allowed. You can only view path and port information.

This window provides access to all LUN management operations.

Operation 25

The LUN Management-LDEV Configuration window displays SCSI path information for the connected disk array and provides access to SCSI path functions. This window opens at the beginning of LUN management operations, and also at the end of LUN management operations so you can view and confirm changes. The following options are accessible from the LUN Management-LDEV Configuration window:

Option Description

Port button and pull-down selection box

Volume button and CU and LDEV pull-down selection boxes

Path List box Displays the path configuration for the selected port or volume. A plus sign

Port SCSI ID, LUN, and Vo l u m e b u t t o n s

Host Mode button Opens the Port Mode Information window to allow you to set the host mode

Fibre button Provides access to the Fibre Channel configuration functions.

OpenVOL button Opens the LU Expansion Define window to allow you to create expanded vol-

Add button Opens the Set LUN Management Parameter window to allow you to create

Selects a particular port to display the SCSI path IDs for that port. The information can be sorted by numerical order or by type using the SCSI ID, LUN, or Volume buttons

Selects a particular CU and then selects an LDEV within that CU to display the SCSI path IDs for that volume. If you select this option, only the SCSI path for that device will be displayed, and the SCSI ID, LUN, and Volume buttons are unavailable.

next to an LDEV ID (for example, 0:01+) indicates that there is a path to that LDEV. Two plus signs (for example, 0:01++) indicate that there are multiple SCSI paths to that LDEV. If there are no plus signs next to the LDEV ID, there are no SCSI paths defined to that LDEV.

Sorts the path information in different ways for volume view.

for one or more ports.

umes.

new paths.

Delete button Opens the Delete LUN Management window to allow you to delete paths.

Cmd.Dev button A toggle switch that allows you to set or unset a volume as a command device

for Command Control Interface operations.

Free SCSI ID and Free Volume boxes

Displays the unassigned SCSI target IDs for the selected port and free LDEVs in the disk array. The window shows information based on the selected port or the selected volume.

HP StorageWorks LUN Configuration Manager XP: user’s guide

Adding and deleting SCSI/Fibre Channel paths

LUN management operations on the remote console PC enable you to add and delete paths to LDEVs in the array. Each LDEV can have multiple paths defined to support failover or load-balancing configurations.

Caution Before assigning a SCSI path to a LDEV, make sure that the LDEV is not an

Auto LUN XP Reserved Device. If the volume has been reserved, it will be write-protected and any writes to that volume will fail. Use Auto LUN XP to verify the reserve status of the LDEVs.

Adding SCSI/Fibre Channel paths

SCSI and Fibre Channel paths can be added in both online (with concurrent I/Os) or offline (no I/O) modes.

To add SCSI/Fibre Channel paths:

1. Select either online or offline mode from the RMSCSI Path menu.

Operation 27

2. Review the information displayed on the LUN Management-LDEV Configuration window to see which paths have already been assigned. A single plus sign (+) next to an LDEV ID (listed under the Volume attribute) indicates that there is an assigned SCSI/fibre path to that LDEV. Two plus signs (++) next to an LDEV ID indicates that there is more than one SCSI path to that LDEV. The label for CMD.Dev next to an LDEV ID indicates that volume is being used as a command device and is not available for SCSI path definition.

3. Select Add to open the Set SCSI Path Parameter window.

HP StorageWorks LUN Configuration Manager XP: user’s guide

4. Paths can be defined individually (individual mode) or in a group (bulk mode).

(Individual Mode) Select PORT, SCSI ID, and LUN one by one for each LDEV ID.

(Bulk Mode) Select the desired CU number; then select the SCSI ports, TIDs, and LUN IDs you want to assign; and then select the corresponding LDEV IDs. Select the first LDEV ID and LUN Manager assigns the remaining paths sequentially, or select the specific LDEV IDs you want to assign.

A bulk mode operation will fail if the number of LUNs defined exceeds the number of LDEVs available.

To calculate the number of LUNs to select, multiply the number of selected ports, the number of selected SCSI TIDs, and the number of selected LUN IDs. For example, if you select one port, four SCSI TIDs, and two LUN IDs, you must select eight LUNs (1 × 4 × 2 = 8).

Operation 29

5. When you have completed setting the paths, select Set.

The Add SCSI Path window opens and displays the SCSI paths to be added.

HP StorageWorks LUN Configuration Manager XP: user’s guide

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