Veritas File System 5.0 Administrator's Guide (September 2006)

See the Veritas Editions products documentation.
About Quick I/O statistics
Quick I/O provides the qiostat utility to collect database I/O statistics generated
over a period of time. qiostat reports statistics, such as the number of read and
write operations, the number of blocks read or written, and the average time spent
on read and write operations during an interval.
See the qiostat(1) manual page.
Increasing database performance using Quick I/O
Perform the following steps to increase database performance on a VxFS file
system using Quick I/O.
See the Veritas Editions product documentation.
See the qioadmin(1) and vxtunefs(1M) manual pages.
To increase database performance
1
Verify that the Veritas Editions product is installed:
# swinstall | grep VRTSdbed
2
Verify that the Veritas Quick I/O package is licensed:
# vxlicrep | grep VXFDD
3
Create a regular VxFS file and preallocate it to required size, or use the
qiomkfile command. The size of this preallocation depends on the size
requirement of the database server.
4
Create and access the database using the file name xxx::cdev:vxfs:.
195Quick I/O for Databases
About Quick I/O statistics