HP StorageWorks Disk Array XP operating system configuration guide for IBM AIX XP24000, XP12000, XP10000, SVS200, v01 (A5951 - 96047, June 2007)

#lsdev -Cc disk
hdisk0 Available 10-60-00-5, 0 16 Bit SCSI Disk Drive
hdisk1 Available 10-60-00-6, 0 16 Bit SCSI Disk Drive
The example shows that Device hdisk0 is installed on bus 60 and has TID=5 and LUN=0.
4. Record the device file names for the new devices. You will use this information in changing the
device parameters.
5. Use the lscfg command to find out the AIX disk device's corresponding array LDEV designation.
Example
# lscfg –vl hdisk3
In this example, the emulation type, LDEV number, CU number and array port designation should
all be displayed for disk device hdisk3.
Configuring disk array devices
Disks in the disk array are configured using the same procedure for configuring any new disk on the
host. This includes the following procedures:
• Changing the device parameters
• Assigning the new devices to volume groups
• Creating the Journaled File Systems
• Mounting and verifying the file systems
Creating scripts to configure all devices at once may save you considerable time.
Changing the device parameters
When the device files are created, the system sets the device parameters to the system default values.
You may need to change a few of those values for each new OPEN-x device: See ??? and ???
• Read/write (R/W) timeout value
• Queue depth
• Queue type
Table 5 Device parameters-read/write timeout and queue type
Required ValueDefault ValueParameter
6030Read/write timeout
SimpleNoneQueue type
Table 6 Device parameters-queue depth
Recommended ValueParameter
32Queue depth per LU
1024Queue depth per port (MAXTAGS)
Installing and configuring AIX for the XP disk array20