You can tune the VxVM parameters by editing the /kernel/drv/vxio.conf
file. The changes made to the tunables using this method are persistent, after a system reboot.
To change the value of a tunable
# prtconf -vP . . . vxio, instance #0 System properties: name <vol_tunable> length <4> value <0x00001388> Driver properties: name <voldrl_max_seq_dirty> length <4> value <0x00000003> . . .
All VxVM tunables that you specify in /kernel/drv/vxio.conf are listed in the output under the "System properties." heading for the vxio drivers. All unchanged tunables are listed with their default values under the "Driver properties" heading. The sample output shows the new value for vol_tunable in hexadecimal:
For more information, see the prtconf(1M) and driver.conf(4) manual pages.
vxio.conf
file./kernel/drv/vxio.conf
file./kernel/drv/vxio.conf
file, using the following format:tunable_name=value;
Where the value is specified in bytes.
For example, to change the value of the tunable vol_rvio_maxpool_sz to 128M, append the following line to the file /kernel/drv/vxio.conf
:
vol_rvio_maxpool_sz=134217728;
The specified value for vol_rvio_maxpool_sz is now applicable system-wide.