Avago Technologies MegaRAID Fast Path Software - Manual (Page 354)

Page 354 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 8: Configuration | Changing Adjustable Task Rates
Figure 221: Set Adjustable Task Rates Menu
3. 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 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).
— 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).
4. Click Ok to accept the new task rates.
5. When the warning message appears, click OK to confirm that you want to change
the task rates.