Compaq ProLiant CL380 Compaq ProLiant CL380 Software User Guide - Page 67

CR3500 RAID Controller., The controller creates RAID sets while it handles I/O activity. A rate

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CR3500 Configuration Utility 4-15 I Read-ahead cache limit-Enter the desired read-ahead limit (0-16). If you enter 0, the read-ahead is disabled. Each increment equals 32 blocks of data that are read ahead in the cache. For example, 2 would equal 64 blocks read-ahead. I Controller mode-Shows the controller mode, which is active or unavailable. I Rebuild rate-Enter the desired rebuild rate, which ranges from 1 to 100. The controller rebuilds while it handles I/O activity. A rate below 50 emphasizes I/O response over the RAID rebuild. A rate above 50 puts a higher priority on the RAID rebuild at the expense of I/O activity. I Create rate-Enter the desired create rate, which ranges from 1 to 100. The controller creates RAID sets while it handles I/O activity. A rate below 50 emphasizes I/O response over the RAID set creation. A rate above 50 puts a higher priority on the RAID set creation at the expense of I/O activity. I Firmware revision-Shows the current firmware revision of the CR3500 RAID Controller. I Serial number-Shows the serial number of the controller. I Connection type-Shows the connection type, which can be serial or SCSI.

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CR3500 Configuration Utility
4-15
■
Read-ahead cache limit
—
Enter the desired read-ahead limit (0-16). If
you enter 0, the read-ahead is disabled. Each increment equals 32 blocks
of data that are read ahead in the cache. For example, 2 would equal
64 blocks read-ahead.
■
Controller mode
—
Shows the controller mode, which is active or
unavailable.
■
Rebuild rate
—
Enter the desired rebuild rate, which ranges from
1 to 100. The controller rebuilds while it handles I/O activity. A rate
below 50 emphasizes I/O response over the RAID rebuild. A rate above
50 puts a higher priority on the RAID rebuild at the expense of I/O
activity.
■
Create rate
—
Enter the desired create rate, which ranges from 1 to 100.
The controller creates RAID sets while it handles I/O activity. A rate
below 50 emphasizes I/O response over the RAID set creation. A rate
above 50 puts a higher priority on the RAID set creation at the expense
of I/O activity.
■
Firmware revision
—
Shows the current firmware revision of the
CR3500 RAID Controller.
■
Serial number
—
Shows the serial number of the controller.
■
Connection type
—
Shows the connection type, which can be serial or
SCSI.