Changing Adjustable Task Rates
If you want to change the Rebuild rate and other task rates for a controller, you must first log onto the server in Full Access mode. (LSI recommends not changing the adjustable task rates from their defaults). Follow these steps to set the adjustable task rates:
1.
Select a controller icon in the Physical tab or the Logical tab in the left panel of the MegaRAID Storage Manager main menu window.
2.
Select Go To>>Controller>>Set Adjustable Task Rates from the menu bar, as shown in the following figure.
Figure 39 Set Adjustable Task Rates Menu
The Set Adjustable Task Rates dialog appears, as shown in the following figure.
Figure 40 Set Adjustable Task Rates Dialog Box
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Rebuild Rate. Enter a number from 0 to 100 to control the rate at which a rebuild will be performed on a drive when one is necessary. The higher the number, the faster the rebuild will occur (and the system I/O rate may be slower as a result).
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Patrol Rate. Enter a number from 0 to 100 to control the rate at which patrol reads will be performed. Patrol read monitors drives to find and resolve potential problems that might cause drive failure. The higher the number, the faster the patrol read will occur (and the system I/O rate may be slower as a result).
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Background Initialization (BGI) Rate. Enter a number from 0 to 100 to control the rate at which virtual drives are initialized “in the background.” Background initialization establishes mirroring or parity for a RAID virtual drive while allowing full host access to the virtual drive. The higher the number, the faster the initialization will occur (and the system I/O rate may be slower as a result).
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Check Consistency Rate. Enter a number from 0 to 100 to control the rate at which a consistency check is done. A consistency check scans the consistency data on a fault tolerant virtual drive to determine if the data has become corrupted. The higher the number, the faster the consistency check is performed (and the system I/O rate may be slower as a result).
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Reconstruction Rate. Enter a number from 0 to 100 to control the rate at which reconstruction of a virtual drive occurs. The higher the number, the faster the reconstruction occurs (and the system I/O rate may be slower as a result).
4.
Click Go to accept the new task rates.
5.
When the warning message appears, click OK to confirm that you want to change the task rates.
NOTE The Controller Operations tab also has options for disabling or silencing the alarm on the controller. Ordinarily you should leave the alarm enabled so it can warn you of abnormal conditions on the controller. You might need to silence the alarm if, for example, the alarm is malfunctioning and is sounding continuously.
DB09 000202 -14 37857 -02, Rev O, November, 2012 |
Copyright© 2012 by LSI Corporation. All rights reserved. |