Tivoli Header

Administrator's Reference

AIXDIRECTIO

This option allows Tivoli Storage Manager to use the Direct I/O capabilities provided on AIX. Direct I/O enhances system performance by allowing write activities to skip caching and go directly to disk. We recommend that you refer to the AIX documentation for details about Direct I/O before using this option. This option applies to eligible disk storage pool volumes, database volumes, and log volumes. If this option is disabled by specifying NO, then no Direct I/O will be performed. The default is for AIXDIRECTIO to be enabled.

Syntax

>>-AIXDIRECTio--+-YES-+----------------------------------------><
                '-NO--'
 
 

Parameters

YES
Specifies that the Tivoli Storage Manager server will use Direct I/O for eligible disk storage pool volumes, database volumes, and log volumes. All of the disk storage pool volumes that are eligible will be opened with Direct I/O.

NO
Specifies that the Tivoli Storage Manager server will not use Direct I/O.

Examples

Enable the use of Direct I/O for eligible disk storage pool volumes:

aixdirectio yes

Disable the use of Direct I/O for disk storage pool volumes:

aixdirectio no


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