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WEB BROWSER-BASED CONFIGURATION
• System Beeper Setting
The "System Beeper Setting" function is used to "Disabled" or
"Enabled" the 6Gb/s SAS RAID controller alarm tone generator.
• Background Task Priority
The "Background Task Priority" is a relative indication of how
much time the controller devotes to a rebuild operation. The
6Gb/s SAS RAID controller allows the user to choose the rebuild
priority (UltraLow, Low, Medium and High) to balance volume
set access and rebuild tasks appropriately. For high array perfor-
mance, specify a "Low" value.
• JBOD/RAID Configuration
JBOD is an acronym for "Just a Bunch Of Disk". A group of
hard disks in a RAID box are not set up as any type of RAID
configuration. All drives are available to the operating system as
an individual disk. JBOD does not provide data redundancy. User
needs to delete the RAID set, when you want to change the
option from the RAID to the JBOD function.
• SATA NCQ Support
The controller supports both SAS and SATA disk drives. The
SATA NCQ allows multiple commands to be outstanding within
a drive at the same time. Drives that support NCQ have an
internal queue where outstanding commands can be dynami-
cally rescheduled or re-ordered, along with the necessary
tracking mechanisms for outstanding and completed portions of
the workload. The 6Gb/s SAS RAID controller allows the user to
select the SATA NCQ support: "Enabled" or "Disabled".
• HDD Read Ahead Cache
Allow Read Ahead (Default: Enabled)—When Enabled, the
drive's read ahead cache algorithm is used, providing maximum
performance under most circumstances.
• Volume Data Read Ahead
The volume read data ahead parameter specifies the controller
firmware algorithms which process the Read Ahead data blocks
from the disk. The Read Ahead parameter is normal by default.
To modify the value, you must set it from the command line us-
ing the Read Ahead option. The default normal option satisfies
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