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MegaRAID Storage Manager Online Help System |
Changing Adjustable Task Rates
Follow these steps if you need to change the adjustable rates for rebuilds, and other system tasks that run in the background:
- Select a controller icon in the Physical tab or the Logical tab in the left panel of the MegaRAID Storage Manager window.
- Select Go To->Controller->Set Adjustable Task Rates from the menu bar.
The Set Adjustable Task Rates screen appears, as shown in Figure 17.Figure 17 Set Adjustable Tax Rates Menu
The Set Adjustable Task Rates dialog box appears, as shown in Figure 18.Figure 18 Set Adjustable Task Rates Dialog Box
Each task rate can be set from 0 to 100 percent. The higher the number, the faster the activity runs in the background, possibly impacting other system tasks.- Enter changes, as needed, to the following task rates:
- 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).
- 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 problem 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).
- 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).
- 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).
- 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).
- Click OK to accept the new task rates.
- When the warning message appears, click OK to confirm that you want to change the task rates.
DB09-000202-04 37857-02 Rev. E October 2010 Copyright© 2010 by LSI Corporation. All rights reserved. You can find a list of the LSI U.S. distributors, international distributors, sales offices, and design resource centers on the LSI web site at: http://www.lsi.com/cm/ContactSearch.do |