Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

■ volname is the name of the volume
For example:
/dev/vx/dsk/PRODdg/db01 qio_cache_enable=1
/dev/vx/dsk/PRODdg/db02 qio_cache_enable=1
where /dev/vx/dsk/PRODdg/db01 is the block device on which the file system
resides.
The tunefstab (4) manual pages contain information on how to add tuning
parameters.
See the tunefstab (4) manual page.
Note: vxtunefs can specify a mount point or a block device; tunefstab must
always specify a block device only.
Using vxtunefs to obtain tuning information
Check the setting of the qio_cache_enable flag for each file system using the
vxtunefs command.
To obtain information on only the qio_cache_enable flag setting
◆
Use the grep command with vxtunefs:
# /sbin/fs/vxfs5.0/vxtunefs /mount_point | grep qio_cache_enable
For example:
# /sbin/fs/vxfs5.0/vxtunefs /db01 | grep qio_cache_enable
where /db01 is the name of the file system. This command displays only the
qio_cache_enable setting as follows:
qio_cache_enable = 0
You can also use the vxtunefs command to obtain a more complete list of
I/O characteristics and tuning statistics.
See the vxtunefs (1) manual page.
To obtain information on all vxtunefs system parameters
◆
Use the vxtunefs command without grep:
# /opt/VRTS/bin/vxtunefs /mount_point
Using Veritas Cached Quick I/O
Enabling Cached Quick I/O on a file system
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