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600716 Rev A System Tasks 1-57
System Tasks
Fine-tune
Parameters
The following parameters can be fine-tuned for better system
performance:
Reallocate
Drives
Drive allocation is affected by the following sets parameters:
• Drive deallocation.
The deallocation parameters determine when a drive is
taken offline because of access errors. Drive
deallocation parameters are set by modifying the
appropriate system parameters. The system parameter file,
fs_sysparm, is located in the $FS_HOME/sysparms
directory.
• Delayed dismount.
The delayed dismount parameters determine when media is
dismounted from a drive after a store or retrieve request is
processed. The delayed dismount feature allows
optimization of reallocation of media for another request in
the queue and, thus, can reduce mount/dismount time for
resource requests.
Step 1. Using a text editor, open the
fs_sysparm file
located in the
$FS_HOME/sysparms directory.
Parameter Page
Reallocate Drives 1-57
Modify Tape Usage 1-58
Redirect Policy Applications 1-59