Managing Controllers : Setting Adjustable Task Rates

Setting Adjustable Task Rates

Perform the following steps to set the adjustable task rates.

1.

Select More Actions > Set Adjustable Task Rate on the Controller dashboard.

The Set Adjustable Task Rates dialog appears.

2.

Enter changes, as needed, in the following task rates:

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Rebuild Rate – Enter a number from 0 to 100 to control the rate at which a rebuild is performed on a drive when it is necessary.

The higher the number, the faster the rebuild occurs (and the system I/O rate might 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 read operations are performed.

The patrol read function monitors drives to find and resolve potential problems that could cause drive failure. The higher the number, the faster the patrol read operation occurs (and the system I/O rate might 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 logical drives are initialized in the background.

Background initialization establishes mirroring or parity for a RAID logical drive while allowing full host access to the logical drive. The higher the number, the faster the initialization occurs (and the system I/O rate might 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 performed.

A consistency check scans the consistency data on a fault tolerant logical drive to determine whether the data has become corrupted. The higher the number, the faster the consistency check is performed (and the system I/O rate might be slower as a result).

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Transformation Rate – Enter a number from 0 to 100 to control the rate at which transformation of a logical drive occurs.

The higher the number, the faster the transformation occurs (and the system I/O rate might be slower as a result).

3.

Click Save to set the new task rates.