Determining individual file settings for Cached Quick I/O using qioadmin
You can determine whether Cached Quick I/O is enabled or disabled for individual files by displaying the file's cache advisory setting using the qioadmin command.
Note: |
To verify caching, always check the setting of the flag qio_cache_enable using vxtunefs, along with the individual cache advisories for each file. |
To display the current cache advisory settings for a file
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Use the qioadmin command with the -P option as follows:
$ /opt/VRTS/bin/qioadmin -P filename /mount_point
For example, to display the current cache advisory setting for the file cust.dbfin the /db01file system:
$ /opt/VRTS/bin/qioadmin -P cust.dbf /db01
cust.dbf,OFF