how to increase the queue depth on the vio client

To change the queue_depth on the hdisk device:

To change the queue depth values, the hdisk should be free from I/O operataions. So



1. stop I/O on the device hence unmount all the filesystems.
- varyoffvg group name

> or  rmdev -l hdisk


2. To change the queue_depth

- chdev -l hdisk -a queue_depth=

- varyonvg or cfgmgr -l hdisk

3.  You can change the ODM using the -P option and rebooting.

- chdev -l hdiskX -a queue_depth=20 -P

     shutdown -Fr