HP 3PAR AIX and IBM Virtual I/O Server Implementation Guide

Existing HP 3PAR virtual volumes or any newly created or exported HP 3PAR StoreServ Storage
VVs have a default queue depth of 16 defined. To display this value, run the following command
on the AIX CLI, where x is the hdisk number/definition.
# lsattr -El hdiskx | grep queue_depth
If required, changes may be applied to the new default queue depth of the HP 3PAR StoreServ
Storage VV. Any change made to the queue depth requires a system reboot to become effective.
To change the device attribute for queue depth run the following command on the AIX CLI:
# chdev -l hdiskx -a queue_depth=yy -P
Installing Veritas as the Multipathing Solution
If Veritas is the multipathing solution, use the following section.
NOTE: For HP 3PAR OS 3.1.x, use the HP 3PAR ODM 3.1 software for Veritas VxVM. For HP
3PAR OS 2.2.x, use the HP 3PAR ODM 1.2 software. For HP 3PAR OS 2.3.x, use either the
HP 3PAR ODM 1.2 or the HP 3PAR ODM 3.1 software.
Installing the HP 3PAR ODM 1.2 Definition for Use with Veritas
When using Veritas Volume Manager, installation of the HP 3PAR ODM 1.2 definition for HP
3PAR OS 2.3.x or OS 2.2.x permits Command Tag Queue support allowing a queue depth greater
than one.
This procedure applies to either a new installation or an existing installation where HP 3PAR
StoreServ Storage VVs already exist on an AIX 7.1, AIX 6.1, or AIX 5.3 system. A user logged
into the AIX system as the superuser or with root privileges must perform this installation. Installation
of the HP 3PAR ODM 1.2 for Veritas VxVM changes requires a system reboot to become effective.
1. Insert the HP 3PAR ODM Definition for IBM AIX installation CD into the AIX server.
2. On the AIX CLI, mount the CD-ROM by determining the device access name of the CD-ROM
device.
In the following example, the CD-ROM is mounted via the AIX CLI, where X is the device name.
# mkdir -p /cdrom
# mount -V cdrfs -o ro /dev/cdx /cdrom
# cd /cdrom
3. Read the aixodm.pdf file on the installation CD for HP 3PAR ODM Definition for IBM AIX.
4. Change and verify that the HP 3PAR StoreServ Storage port personas or host personas are
set depending on the HP 3PAR OS version running, as described in “Configuring the HP 3PAR
StoreServ Storage Running HP 3PAR OS 3.1.x or OS 2.3.x” (page 7).
5. Run the inst3par.sh script ./inst3par.sh. (The script is directly accessible from the
/cdrom directory).
6. In order for the results to be permanent, run the <savebase> and <bosboot -a> commands.
Be careful when running these commands. See the AIX documentation for details.
Installing Veritas as the Multipathing Solution 25