Areca ARC-1110 Manuel D’Utilisation

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WEB BROWSER-BASED CONFIGURATION
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6.8 System Controls
6.8.1 System Config
To set the raid system function, move the cursor to the main 
menu and click the “Raid System Function” link. The “Raid System 
Function” menu will show all items, then select the desired func-
tion.
• 
System Beeper Setting
The Alert Beeper function item is used to Disabled or Enable the 
SATA RAID controller alarm tone generator.
• 
Background Task Priority
The Raid Rebuild Priority is a relative indication of how much 
time the controller devotes to a rebuild operation. The SATA 
RAID controller allows the user to choose the rebuild priority 
(ultraLow, Low, Normal, High) to balance volume set access 
and rebuild tasks appropriately. For high array performance, 
specify a Low value.
• 
JBOD/RAID Configuration
JBOD is an acronym for “Just a Bunch Of Disks”.  It repre-
sents a volume set that is created by the concatenation of par-
titions on the disk.  The OS can see all disks when this option is 
selected. It is necessary to delete a RAID set if the disks in that 
set are to be convereted to JBOD mode.
• 
Maximun SATA Supported
The SATA RAID controller can support up to SATA ll, which runs 
up to 300MB/s. NCQ is a command protocol in Serial ATA that 
can only be implemented on native Serial ATA hard drives. It 
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 dynamically rescheduled 
or re-ordered, along with the necessary tracking mechanisms 
for outstanding and completed portions of the workload. The 
RAID subsystem allows user to choose the SATA Mode (slowest 
to fastest): SATA150, SATA150+NCQ, SATA300, SATA300+NCQ.
• HDD Read Ahead Cache