Veritas Storage Foundation™ for Oracle 5.0.1 Administrator's Guide

File I/O statistics help identify files with an unusually large number of operations
or excessive read or write times. When this happens, try moving the “hot” files
or busy file systems to different disks or changing the layout to balance the I/O
load.
Mon May 11 16:21:20 2015
/db/dbfile01 813 0 813 0 0.3 0.0
/db/dbfile02 0 813 0 813 0.0 5.5
Mon May 11 16:21:25 2015
/db/dbfile01 816 0 816 0 0.3 0.0
/db/dbfile02 0 816 0 816 0.0 5.3
Mon May 11 16:21:30 2015
/db/dbfile01 0 0 0 0 0.0 0.0
/db/dbfile02 0 0 0 0 0.0 0.0
Obtaining file I/O statistics using Veritas extension for Oracle Disk
Manager
The odmstat command provides access to activity information on Oracle Disk
Manager files on VxFS systems. Refer to the odmstat(1M) manual page for more
information. The command reports statistics on the activity from the time that
the files were opened by the Oracle Disk Manager interface. The command has
an option for zeroing the statistics. When the file is closed, the statistics are
discarded.
The odmstat command displays the following I/O statistics:
■ Number of read and write operations
■ Number of data blocks read and written
■ Average time spent on read and write operations
Tuning for performance
About tuning VxFS
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