Oracle Tips by Burleson
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.
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