NEC Express5800/B120b, User Manual

Page: 90 / 382

4-40 Configuring Your Server
Setting of Priority (Rate) of Background Tasks
LSI Software Configuration Utility displays and sets priority of background tasks (Rebuild, Patrol
Read, and Consistency Check) by percentage. Universal RAID Utility uses three levels as
High/Middle/Low for them. See the table below.
The priority indicates the ratio which the background task occupies to the process running by the
RAID Controller.
The setting value of LSI Software Configuration Utility and
the display level of Universal RAID Utility
Item
Setting value of LSI Software
Configuration Utility (%) Display level of Universal
RAID Utility
15 to 100 High
8 to 14 Middle
Rebuild Rate
0 to 7 Low
15 to 100 High
8 to 14 Middle
Patrol Read Rate
0 to 7 Low
15 to 100 High
8 to 14 Middle
Chk Const Rate
0 to 7 Low
The setting level of Universal RAID Utility and the display level of
LSI Software Configuration Utility
Item
Setting level of Universal
RAID Utility Display level of LSI Software
Configuration Utility (%)
High 20
Middle 10
Rebuild Priority
Low 5
High 20
Middle 10
Patrol Read Priority
Low 5
High 20
Middle 10
Consistency Check
Priority
Low 5
NOTES:
„
LSI Software Configuration Utility allows you to set BGI Rate
(Background Initialize Priority). But Universal RAID Utility does
not.
„
The server does not support full initialization feature, you cannot set
Initialization Priority though Universal RAID Utility allows it.