Areca ARC-1231ML/1261ML/1280ML, ARC-1110, ARC-1130, ARC-1120 manual System Controls, System Config

WEB BROWSER-BASED CONFIGURATION

6.8System Controls

6.8.1System 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

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