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AIX File system caching

Former Member
0 Kudos

Dear Experts,

How to disable file system caching in aix environment?

Thanks in advance.

Regards,

Rudi

Accepted Solutions (0)

Answers (5)

Answers (5)

Former Member
0 Kudos

Hi Markus,

Thanks for the feed back.

Regards,

Rudi

Former Member
0 Kudos

one more link for you

[http://publib.boulder.ibm.com/infocenter/db2luw/v9r5/index.jsp?topic=/com.ibm.db2.luw.admin.dbobj.doc/doc/c0051304.html]

Have you thought about raw partitions?

Former Member
0 Kudos

Hi All,

Many thanks for the info, i'll check it out.

Hi Manoj,

I've heard and read about raw device, but what is raw partition?

Regards,

Rudi

Former Member
0 Kudos

Dear All,

I've altered tablespace to NO FILE CACHE setting, do we need to restart the server after the alteration?

Thanks and Regards,

Rudi

markus_doehr2
Active Contributor
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No - why should you? You changed a configuration of a software on top of the OS only

Markus

nelis
Active Contributor
0 Kudos

Usually this is done by mounting the file system with the "dio" option.

Type 'man mount' and search for the option dio.

Regards,

Nelis

Former Member
0 Kudos

Hi,

You can use cio and io for database files.

Thanks,

Sudip

markus_doehr2
Active Contributor
0 Kudos

> How to disable file system caching in aix environment?

This depends on the filesystem used.

Check http://stix.id.au/wiki/Tuning_the_AIX_file_caches

Markus

Former Member
0 Kudos