LSI Corporation
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12Gb/s MegaRAID SAS Software User Guide
March 2014
Chapter 9: Configuration
Changing Adjustable Task Rates
3. Perform one of these actions:
— If you selected Assign Dedicated Hot Spare, select a drive group from the list that appears. The hot spare is
dedicated to the drive group that you select.
— If you selected Assign Global Hot Spare, skip this step, and go to the next step. The hot spare is available to
any virtual drive on a specific controller.
4. Click Go to create the hot spare.
The drive state for the drive changes to dedicated or global hot spare, depending on your selection.
9.4 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.
NOTE Leave the adjustable task rates at their default settings to achieve the
best system performance. If you raise the task rates above the defaults,
foreground tasks will run more slowly and it might seem that the
system is not responding. If you lower the task rates below the
defaults, rebuilds and other background tasks might run very slowly
and might not complete within a reasonable time. If you decide to
change the values, record the original default values here so you can
restore them later, if necessary: Rebuild rate: ____________,
Background Initialization (BGI) rate: ____________, Check
consistency rate: ____________.
To change the adjustable task rates, perform the following steps:
1. Select a controller icon in the Physical tab or the Logical tab in the left panel of the MegaRAID Storage
Manager window.
2. Select Go To > Controller > Set Adjustable Task Rates from the menu bar.
The Set Adjustable Task Rates window appears, as shown in the following figure.
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