User`s manual

11
ARS-3020 User’s Manual
(1). Pin 1: Reserved
The default is OFF.
(2). Pin 2: JBOD Mode vs. Normal Mode
The default is JBOD. It combines 2 or more hard drives into a big one. The enlarged
capacity is convenient for mass data storage. In Normal mode the SCSI adapter
will detect the hard drives you have connected. You need to enable the SCSI
adapter’s LUN support. Take ACARD AEC-67160 as example. In the SCSI BIOS
screen, you need to set “Support LUN# 0 Upto Max LUN# As....” as 3 so that
the computer can detect all hard drives.
(3). Pin 3: SCSI Host Transfer Rate at 80MB/s vs. 40MB/s
The default is 80MB/s. If the SCSI adapter is not so capable or the signals become
unstable after connecting some ARS-3020s, lower the speed to 40MB/s.
However, if you have installed AEC-67160 SCSI adapter, the host PC will
automatically detect how many ARS-3020s you have connected, and adjust the
transfer rate.
(4). Pin 4: SCSI Host Transfer Rate at 160MB/s
The default is OFF. But if pin 4 is adjusted to ON, the highest transfer rate will
reach 160MB/s.
2.4 Install the Hard Drives
Follow the steps below to install hard drives into the trays of ARS-3020.
(1). Open the tray by pressing its handle.
Figure 2-4