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Chapter 1 – Introduction
Key features
The ACUTA supports the following features
Automatic on-line rebuilding
Drives are hot swappable
Supports RAID levels 0, 0+1 and 5
Optional hot spare setup for RAID 5 (5+spare)
Hot swappable fan
Supports four parallel ATA/Serial ATA I hard drives
Requires no driver
Audible alarm on drive failure & alarm mute function
Supports multiple host interfaces
Disk auto shutdown when system over heat for protecting ACUTA.
Hot Spare
Hot Spare allows for the automatic replacement of a failed drive without requiring intervention
from the administrator. If this option is selected and a drive fails, the ACUTA will automatically
replace the faulty drive with the hot spare drive.
Automatic drive rebuilding
If a member drive in a RAID 5 array is replaced on-line, the controller will automatically start to
rebuild data to the new drive.
Hard drive hot swapping
Hot swapping allows for the removal and installation of disk drives without the need to power
down the system while the ACUTA system is in use.
Multiple host interface support
The ACUTA is available in two hardware configurations so that users may select the host
interface most appropriate for their system. The two configurations offer the following host
interfaces:
IEEE 1394A/B (also known as i.Link and FireWire) and USB 2.0
Serial ATA
Auto disk shut down when over heat
The Acuta will shut down disks automatically when temperature is over 55
damage of DISK and DATA loss.
Warranty
One year warranty
This manual contains the information necessary to set up each of the two
available hardware configurations of the ACUTA. Where procedures for the
configurations differ, they are described separately and clearly marked.
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