LSI Corporation
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12Gb/s MegaRAID SAS Software User Guide
March 2014
Chapter 5: The HII Configuration Utility
Managing Controllers
NOTE
You can only view the properties/options supported by your
controller.
1.
To change the percentage of system resources dedicated to performing a BGI on a redundant virtual drive,
highlight
Background Initialization <BGI> Rate
and press Enter. Specify a number from 0 to 100 and press
Enter.
The BGI rate is the percentage of the compute cycles dedicated to running a background initialization of drives on
this controller. You can configure the BGI rate between 0 percent and100 percent. At 0 percent, the initialization
operation runs only if the firmware is not doing anything else. At 100 percent, the initialization operation has a
higher priority than I/O requests from the operating system. For best performance, use an initialization rate of
approximately 30 percent.
2.
To specify a rate for the percentage of system resources dedicated to performing a consistency check operation
on a redundant virtual drive, highlight
Consistency Check Rate
, and press Enter. Specify a number from 0 to 100
and press Enter.
The consistency check rate is the percentage of the compute cycles dedicated to running a consistency check on
drives on this controller. You can configure the consistency check rate between 0 percent and 100 percent. At 0
percent, the consistency check operation runs only if the firmware is not doing anything else. At 100 percent, the
consistency check operation has a higher priority than I/O requests from the operating system. For best
performance, use a consistency check rate of approximately 30 percent.
3.
To specify a rate for the percentage of system resources dedicated to performing a patrol read operation on
configured physical drives, highlight
Patrol Read Rate
and press Enter. Specify a number from 0 to 100 and press
Enter.
The patrol read rate is the percentage of the compute cycles dedicated to running a patrol read on drives on this
controller. You can configure the patrol read rate between 0 percent and 100 percent. At 0 percent, the patrol read
runs only if the firmware is not doing anything else. At 100 percent, the patrol read has a higher priority than I/O
requests from the operating system. For best performance, use a patrol read rate of approximately 30 percent.
4.
To specify a rate for the percentage of system resources dedicated to rebuilding data on a new drive after a
storage configuration drive has failed, highlight
Rebuild Rate
and press Enter. Specify a number from 0 to 100
and press Enter.
The rebuild rate is the percentage of the compute cycles dedicated to rebuilding failed drives in virtual drives on
this controller. You can configure the rebuild rate between 0 percent and 100 percent. At 0 percent, the rebuild
runs only if the firmware is not doing anything else. At 100 percent, the rebuild operation has a higher priority
than I/O requests from the operating system. For best performance, use a rebuild rate of approximately 30
percent.
5.
To specify a rate for the percentage of system resources dedicated to performing a RAID level Migration (RLM) or
an Online Capacity Expansion (OCE) on a virtual drive, highlight
Reconstruction Rate
and press Enter. Specify a
number from 0 to 100 and press Enter.
The reconstruction rate is the percentage of the compute cycles dedicated to reconstructing data on drives on
this controller. You can configure the reconstruction rate between 0 percent and100 percent. At 0 percent, the
reconstruction operation runs only if the firmware is not doing anything else. At 100 percent, the reconstruction
operation has a higher priority than I/O requests from the operating system. For best performance, use a
reconstruction rate of approximately30 percent.
6.
Highlight
Apply Changes
and press Enter. The new settings are saved in the controller properties.
5.4.15
Upgrading the Firmware
The following dialog appears when you select
Firmware Update
from the
Controller Management
dialog.
Summary of Contents for ThinkServer RD650
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