Setting cache advisories for individual files

Setting cache advisories for individual files

Prev	Enabling and disabling Cached Quick I/O for individual files	Next

Setting cache advisories for individual files

You can enable and disable Cached Quick I/O for individual files by changing the cache advisory settings for those files.

To disable Cached Quick I/O for an individual file

Use the qioadmin command to set the cache advisory to OFF as follows:
```
    $ /opt/VRTS/bin/qioadmin -S filename=OFF /mount_point
```
For example, to disable Cached Quick I/O for the file /db01/dbfile, set the cache advisory to OFF:
```
    $ /opt/VRTS/bin/qioadmin -S dbfile=OFF /db01
```

To enable Cached Quick I/O for an individual file

Use the qioadmin command to set the cache advisory to ON as follows:
```
    $ /opt/VRTS/bin/qioadmin -S filename=ON /mount_point
```
For example, running qiostatshows the cache hit ratio for the file /db01/dbfilereaches a level that would benefit from caching. To enable Cached Quick I/O for the file /db01/dbfile, set the cache advisory to ON:
```
    $ /opt/VRTS/bin/qioadmin -S dbfile=ON /db01
```

Prev	Up	Next
Enabling and disabling Cached Quick I/O for individual files	Home	Making individual file settings for Cached Quick I/O persistent