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Oracle Tips by Burleson 

Monitoring UNIX disk I/O

Monitoring disk I/O is a very important UNIX task that is generally performed by the UNIX systems administrator or the Oracle DBA.  While those you purchase powerful disk array systems such as EMC are limited to proprietary tools such as Open Symmetric Manager or Navistar, those using generic disk can use the iostat utility to monitor disk over time.

Since iostat measures I/O at the physical disk level, the Oracle DBA must create the mapping between the physical disks, the UNIX mount points, and the Oracle files.  Let’s see how this is done.

The above is an excerpt from the "Oracle9i UNIX Administration Handbook" by Oracle press, authored by Donald K. Burleson.


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