HP StorageWorks XP1024 Quick guide

HP StorageWorks
Disk Array XP operating system
configuration guide: Linux
XP12000
XP10000
XP1024
XP128
This guide describes the requirements and procedures for connecting the XP family of disk arrays to a
Linux system and configuring the new disk array for operation with Linux.
Part number: A5951–96094
Seventh edition: (November 2005)

Legal and notice information
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Data for Commercial Items are licensed to the U.S. Government under vendor’s standard commercial license.
The information contained herein is subject to change without notice. The only warranties for HP products
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Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical
or editorial errors or omissions contained herein.
Microsoft, Windows, Windows XP, and Windows NT are U.S. registered trademarks of Microsoft Corporation.
Linux is a U.S. registered trademark of Linus Torvalds.
Disk Array XP operating system configuration guide: Linux

Contents
Preface ......................... 5
Aboutthisguide................................ 5
Intendedaudience............................... 5
Diskarrays.................................. 5
Relateddocumentation............................. 5
Documentconventionsandsymbols ....................... 6
HPtechnicalsupport.............................. 7
Subscriptionservice .............................. 7
OtherHPwebsites .............................. 7
1Installation....................... 9
Featuresandrequirements ........................... 9
FibreChannelinterface............................ 10
Deviceemulationtypes............................ 10
Partitions.................................. 11
Failover .................................. 11
SNMP configuration............................. 11
RAID Manager command devices . . . . . . . . . . . . . . . . . . . . . . . 11
Installationprocedures ............................ 12
Install and configurethediskarray....................... 12
Settingthehostmodeforthediskarrayports .................. 13
SettingtheSystemOptionModes ....................... 14
ConfiguringtheFibreChannelports ...................... 15
FibreAddress.............................. 16
FabricandConnectionparametersettings.................. 16
Install and configurethehost ......................... 17
LoadingtheOSandsoftware ......................... 17
Installing and configuringtheHBAs....................... 18
Clusteringandfabriczoning ......................... 18
FabriczoningandLUNsecurityformultipleoperatingsystems ........... 19
Connectthediskarray............................ 20
RestartingtheLinuxserver........................... 20
Definingthepaths.............................. 20
Verifyingnewdevicerecognition........................ 21
Configurediskarraydevices ......................... 23
Partitioningthedevices............................ 23
Creating the filesystems ........................... 23
Creating filesystemswithext2....................... 24
Disk Array XP operating system configuration guide: Linux 3

Creatingthemountdirectories......................... 24
Creatingthemounttable ........................... 25
Verifying filesystemoperation......................... 25
2Troubleshooting.................... 27
Errorconditions............................... 27
CallingtheHPsupportcenter ......................... 28
Contactinformation ........................... 28
Beforeyoucall ............................. 29
APathworksheet .................... 31
BDiskarraysupportedemulations............. 33
Supportedemulations ............................ 33
Emulation specifications ........................... 34
Glossary........................ 37
Index ......................... 41
4

Preface
About this guide
This guide provides information about:
•Requirements and procedures for connecting an XP disk array to a host system
•Configuring the disk array for use with the Linux operating system
Intended audience
This guide is intended for system administrators with knowledge of:
•The host hardware
•Linux operating system
•XP disk arrays
Disk arrays
Unless otherwise noted, the term “disk array” refers to these disk arrays:
•HP StorageWorks Disk Array XP128
•HP StorageWorks Disk Array XP1024
•HP StorageWorks XP10000 Disk Array
•HP StorageWorks XP12000 Disk Array
Related documentation
The following documents provide related information:
•HP StorageWorks Disk Array XP128: Owner’s Guide
•HP StorageWorks Disk Array XP1024: Owner's Guide
•HP StorageWorks XP10000 Disk Array: Owner's Guide
•HP StorageWorks XP12000 Disk Array: Owner's Guide
You can find these documents on the storage web site:
http://h18006.www1.hp.com/storage/xparrays.html
Disk Array XP operating system configuration guide: Linux 5

Document conventions and symbols
Convention Element
Blue text Cross-reference links and email addresses
Bold •Keys that are pressed
•Text typed into a GUI element, such as a box
•GUI elements that are clicked or selected, such as
menu and list items, buttons, tabs, and check boxes
•Literalvaluestypedexactlyasshown
Italics Text emphasis and book titles
Blue, underlined:
www.hp.com [http://
www.hp.com]
Web site addresses
Monospace font •File and directory names
•System output
•Code
•Commands, their arguments, and argument values
Monospace, italic
font •Code variables
•Command variables
Monospace, bold
font Emphasized monospace text
WARNING!
Indicates that failure to follow directions could result in bodily harm or death.
CAUTION:
Indicates that failure to follow directions could result in damage to equipment or data.
NOTE:
Provides additional information.
6Preface

HP technical support
In North America, call technical support at 1-800-633-3600, available 24 hours a
day, 7 days a week.
Outside North America, call technical support at the location nearest you. Telephone
numbers for worldwide technical support are listed on the HP support web site:
http://www.hp.com/support. From this web site, select your country.
Collect the following information before calling:
•Technical support registration number (if applicable)
•Product serial numbers
•Product model names and numbers
•Applicable error messages
•Operating system type and revision level
•Detailed questions
For continuous quality improvement, calls may be recorded or monitored.
Subscription service
HP strongly recommends that customers register online using the Subscriber’s Choice
web site: http://www.hp.com/go/e-updates.
Subscribing to this service provides you with e-mail updates about the latest product
enhancements, driver versions, and firmware documents, plus instant access to many
other product resources.
After subscribing, locate your products by selecting Business support and then Storage
under Product Category.
Other HP web sites
For additional information, see the following HP web sites:
•h
ttp://www.hp.com/go/storage
•http://www.hp.com/support/
•http://www.hp.com/service_locator
•http://www.docs.hp.com
Disk Array XP operating system configuration guide: Linux 7

8Preface

1 Installation
You and your HP service representative each play a role in installation. Your HP service
representative is responsible for installing the disk array and formatting the disk devices.
You are responsible for configuring the host server for the new devices with assistance
from your HP service representative.
Features and requirements
Ask your HP service representative about the latest supported hardware and software.
The disk array has the following features:
•Storage capacity. The storage capacity for each model is listed below:
XP128: From8to128drivesforupto36TB,48FCports
XP1024: From8to1024drivesforupto149TB,64FCports
XP10000: Up to 240drivesforupto69.2TB,48FCports
XP12000: Up to 1152 drives for up to 332 TB, 128 FC ports
•Server support. Server supported by HP to run Linux. Consult your HP
representative for a list of supported servers.
•Operating system support. Red Hat, SuSE, and United Linux are supported.
Before installing the disk array, ensure the environment conforms to these requirements:
•Fibre Channel Port configuration Configure each Fibre Channel port on the
disk array so it has a unique Fibre Channel loop ID. (All ports are set to 0 by
default at the factory.)
•Linux version Confirm you are using Red Hat, SuSE, or United Linux.
•Superuser access Make sure you have superuser (root) login access to the Linux
system.
•Host Bus Adapters (HBAs). Install HBAs and all utilities and drivers. Refer to the
adapter documentation for installation details
•(Recommended) HP StorageWorks Remote Web Console XP, Command View
XP Advanced Edition or Command View XP with LUN management feature for
configuring disk array ports and paths
•(Recommended) HP StorageWorks LUN Configuration and Security Manager XP
•(Optional) OtheravailableXPsoftware(somemaynotbesupportedbyyour
system):
HP StorageWorks Business Copy XP
Disk Array XP operating system configuration guide: Linux 9

HP StorageWorks Continuous Access XP
HP StorageWorks Continuous Access Extension XP
HP StorageWorks Auto LUN XP
HP StorageWorks Data Exchange XP
HP StorageWorks Resource Manager XP
HP StorageWorks RAID Manager XP
HP StorageWorks Cache LUN XP
HP StorageWorks Auto Path XP
HP StorageWorks Cluster Extension XP
HP StorageWorks Performance Advisor XP
Fibre Channel interface
The XP family of disk arrays supports these Fibre Channel elements:
•Connection speed of 1 Gbps and 2 Gbps
•Short-wave non-OFC (open fiber control) optical interface
•Multimode opticalcableswithSCorLCconnectors
•Public or private arbitrated loop (FC-AL) or direct fabric attach
•Fibre Channel switches
Even though the interface is Fibre Channel, this guide uses the term “SCSI disk” because
disk array devices are defined to the host as SCSI disks.
Device emulation types
The XP family of disk arrays supports these device emulation types:
•OPEN-x devices: OPEN-x logical units represent disk devices. Except for
OPEN-V, these devices are based on fixed sizes. OPEN-V is a user-defined size.
Supported emulations include OPEN-3, OPEN-8, OPEN-9, OPEN-E, OPEN-L,
and OPEN-V devices.
•LUSE devices (OPEN-
x * n ): Logical Unit Size Expansion (LUSE) devices combine 2
to 36 OPEN-x devices to create expanded LDEVs larger than standard OPEN-x
disk devices. For example, an OPEN-x LUSE volume created from ten OPEN-x
volumesisdesignatedasOPEN-x*10.
•CVS devices (OPEN-x CVS): Volume Size Configuration (VSC) defines custom
volumes (CVS) that are smaller than normal fixed-sized logical disk devices
(volumes). (OPEN-V is a CVS-based custom disk size that you determine. OPEN-L
does not support CVS.)
10 Installation

•LUSE (expanded) CVS devices (OPEN-x*n CVS): LUSE CVS combines CVS devices
to create an expanded device. This is done by first creating CVS custom-sized
devices and then using LUSE to combine from 2 to 36 CVS devices. For example,
if three OPEN-9 CVS volumes are combined to create an expanded device, this
device is designated as OPEN-9*3-CVS.
Partitions
In a Linux environment, one LUN can be divided into a maximum of four primary
partitions (using fdisk) or maximum of one extended partition.
Failover
The XP family of disk arrays supports many standard software products that provide host,
application, or I/O path failover and management.
SNMP configuration
The XP family of disk arrays supports standard Simple Network Management Protocol
(SNMP) for remotely managing the disk array. The SNMP agent on the service processor
(SVP) performs error-reporting operations requested by the SNMP manager. SNMP
properties are usually set from the SVP but they can also be set remotely using Remote
Web Console XP, Command View XP, or Command View XP Advanced Edition. Refer to
the applicable user's guide for procedures.
RAID Manager command devices
RAID Manager manages Business Copy (BC) or Continuous Access (CA) operations
from a host server. To use RAID Manager with BC or CA, you use Remote Web Console,
Command View, or Command View XP Advanced Edition to designate at least one LDEV
as a command device. Refer to the applicable user's guide for information about how to
designate a command device.
Disk Array XP operating system configuration guide: Linux 11

Installation procedures
Perform these actions to install and configure the disk array:
1. Install and configure the disk array
•Setting the host mode
•Setting the System Option Modes
•Configuring the Fibre Channel ports
2. Install and configure the host
•Loading the OS and software
•Installing and configuring the HBAs
•Clustering and fabric zoning
•Fabric zoning and LUN security
3. Connect the disk array
•Restarting the Linux server
•Defining the paths
•Verifying new device recognition
4. Configure disk array devices
•Partitioning the devices
•Creating the file systems
•Creating the mount directories
•Creating the mount table
Install and configure the disk array
The HP service representative performs these tasks:
•Assembling hardware and installing software
•Loading the microcode updates
•Installing and formatting devices
After these tasks are finished, you will use Remote Web Console, Command View,
Command View XP Advanced Edition, or LUN Configuration and Security Manager to
complete the remaining tasks listed below. If you do not have these programs, your HP
service representative can perform these tasks for you.
12 Installation

Setting the host mode for the disk array ports
After the disk array is installed, you must set the host mode for each disk array port to
match the host OS. Set the host mode using LUN Manager in Remote Web Console
XP (shown), Command View XP, or Command View XP Advanced Edition. If these are
not available, the HP service representative can set the host mode using the SVP. The
host mode setting for Linux is 00.
Disk Array XP operating system configuration guide: Linux 13

For the XP1024/XP128 arrays, the host mode can also be set at the port information
window in Command View XP AE.
Setting the System Option Modes
The HP service representative sets the System Option Mode(s) based on the operating
system and software configuration of the host.
14 Installation

Mode Level HA Software Description and Usage
140 Optional None ON: Response to the Inquiry command
is changed, and thevolumecanbeused
from VeritasNetBackUP in heterogeneous
OS configuration,suchasHP-UX.
OFF: Normal response to the Inquiry
command.
186 Mandatory Veritas Database
Editions/ Advanced
Cluster
ON: Mandatory setting when VERITAS
Database Editions/Advanced Cluster is
connected.
OFF: VERITAS Database Editions/
Advanced Cluster should not be connected
with this setting.
254 Optional Veritas Database
Editions Change the response of reserve conflict
status to Read Capacity, Verify, and Start
Stop Unit.
ON: Normal end is reported.
OFF: Reserve conflict status is reported.
280 Optional HP-UX Ghost LUN Remove OS version:
HP-UX 11.0 and later.
ON: When thehostscanstheLUNSonthe
port, the disk array is not represented in
the device list for HP-UX.
OFF: When the host scans the LUNS on the
port, the disk array is represented in the
device list for HP-UX.
Configuring the Fibre Channel ports
Configure the disk array Fibre Channel ports by using Remote Web Console (shown),
Command View, or Command View XP AE. Select the settings for each port based on
your storage area network topology. Use switch zoning if you connect different types of
hosts to the array through the same switch.
Disk Array XP operating system configuration guide: Linux 15

Fibre Address
In fabric environments, the port addresses are assigned automatically. In arbitrated
loop environments, set the port addresses by selecting a unique arbitrated loop
physical address (AL-PA) or loop ID for each port. For specificvalues,refertotheHP
StorageWorks LUN Configuration and Security Manager XP User Guide applicable
to your array
Fabric and Connection parameter settings
Set each array port to FABRIC ON or OFF with connections of POINT-TO-POINT or FC-AL
asshowninthefollowingfigures and table. For detailed topology information, refer to
the HP StorageWorks SAN Design Reference Guide on the www.hp.com web site.
16 Installation

Fabric Parameter Connection Parameter Provides
ON FC-AL Not supported
OFF FC-AL AL-port (private arbitrated
loop; direct connect without
aSAN)
ON Point-to-Point N-port (SAN fabric port)
OFF Point-to-Point Not supported
Install and configure the host
This section explains how to install and configure the host and host bus adapters (HBAs)
that connect the host to the disk array.
Loading the OS and software
Follow the manufacturer's instructions to load the operating system and software onto
the host. Load all OS patches and configuration utilities supported by HP and the HBA
manufacturer.
Disk Array XP operating system configuration guide: Linux 17

Installing and configuring the HBAs
Install and configure the host bus adapters using the HBA manufacturer's instructions.
On Linux systems, the disk array only supports QLogic and Emulex adapters. Contact
your HP service representative for the latest information about supported HBAs.
Clustering and fabric zoning
If you plan to use clustering, install and configure the clustering software on the servers.
Clustering is the organization of multiple servers into groups. Within a cluster, each
server is a node. Multiple clusters compose a multi-cluster environment. The following
example shows a multi-cluster environment with three clusters, each containing two
nodes. The nodes share access to the disk array.
Within the Storage Area Network (SAN), the clusters may be homogeneous (all the
same operating system) or they may be heterogeneous (mixed operating systems). How
you configure LUN security and fabric zoning depends on the operating system mix and
the SAN configuration.
18 Installation

Fabric zoning and LUNsecurityformultiple
operating systems
You can connect multiple clusters of various operating systems to the same switch and
fabric using appropriate zoning and LUN security as follows:
•Storage port zones may overlap if more than one operating system needs to
share an array port.
•Heterogeneous operating systems may share an XP array port if you use Secure
Manager and set the appropriate host group and mode. All others must connect
to a dedicated XP array port.
•UseSecureMana
ger for LUN isolation when multiple hosts connect through a
shared array port. Secure Manager provides LUN security by allowing you to
restrictwhichLUNseachhostcanaccess.
Environment OS Mix Fabric Zoning LUN Security
homogeneous (a
single OS type
present in the SAN)
Not required
Standalone SAN
(non-clustered)
heterogeneous (more
than one OS type
present in the SAN)
Required
Must be used
when multiple hosts
connect through a
shared port
homogeneous (a
single OS type
present in the SAN)
Not required
Clustered SAN
heterogeneous (more
than one OS type
present in the SAN)
Required
Must be used when
multiple cluster
nodes connect
through a shared
port
homogeneous (a
single OS type
present in the SAN)
Not required
Multi-Cluster SAN
heterogeneous (more
than one OS type
present in the SAN)
Required
Must be used when
multiple cluster
nodes connect
through a shared
port
Disk Array XP operating system configuration guide: Linux 19

Connect the disk array
The HP service representative connects the disk array to the host by:
•Verifying operational status of the disk array channel adapters, LDEVs, and paths.
•Connecting the Fibre Channel cables between the disk array and the fabric
switch or host.
•Verifying the ready status of the disk array and peripherals.
Restarting the Linux server
Restart the Linux server as follows:
1. Power on the display of the Linux server.
2. Power on all devices other than the Linux server.
3. Confirm ready status of all devices.
4. Power on the Linux server.
Defining the paths
Use Remote Web Console (shown), Command View, or Command View XP AE to define
paths (LUNs) between hosts and volumes in the disk array.
This process is also called “LUN mapping.” In Remote Web Console and Command
View, LUN mapping includes:
•Configuring ports
•Enabling LUN security on the ports
•Creating host groups
•Assigning host bus adapter WWNs to host groups
•Mapping volumes to host groups (by assigning LUNs)
20 Installation