Accordance Systems 2000 ARAID 1500 and 2000 Operations Overview

ARAID 1500, ARAID 2000 User’s Manual

Accordance Systems Inc.

ARAID 1500 and 2000 Operations Overview

IDE Drives: Set both IDE hard disks in upper and lower trays to “Master” or “Single

Drive” mode allowing the ARAID to detect and recognize the hard disks in

the trays.

NOTE: “Cable Select” is the default jumper setting for most new IDE hard disks. You must change

the jumper to “Master” mode, or otherwise ARAID won’t detect it.

Default Mode: ARAID 1500/2000 default operation is UDMA. If it cannot work with the

host SATA on your PC in this mode, it will automatically switch to PIO

mode 4 or a lower drive speed.

Cooling: ARAID 1500/2000 is equipped with a 70mm cooling fan providing

adequate ventilation for hard disk operation at 10,000 rpm. Please check

and remove any obstructions in the computer system that may be

blocking air to and from the ARAID disk array.

Drive Selection: ARAID works with all drives. We recommend using two new matching

drives but two identical drives will work. ARAID is designed with a strict

EIDE command set and accurate to work on any operating system without

the need of a device driver or RAID I/O controller board.

Default mode: When ARAID is set at RAID 1 mode, its front panel operation mode switch

is set to Default position for ordinary disk mirroring operation.

One Drive Operation: ARAID can operate with only one drive in the upper bay. When the front

panel operation mode switch is set to Single, ARAID will only access to

Mobile Rack1 (Upper Bay) disk, and the mirror function is disabled.

Changing Modes from Single to Default: ARAID will automatically mirror contents from the

Upper tray to Lower tray when you switch from Single to Default mode

(Performing a manual Mirror-On-Demand).

Mode Selection: When ARAID works at RAID 0 mode, the front panel operation mode

switch must be always set to Default.

z When ARAID is set at RAID 0 mode, it requires two disks to operate with. ARAID will not

work with one single disk installed at RAID 0 mode.

z Always place the switch in the “Default” position for RAID 0 operation.

z Never place the switch in the “Single” position or switch it from “Single” to “Default”, or you

will risk losing all RAID 0 data.