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The SCSI Diamond Storage Array uses a VHDCI connector and SCSI cables to connect to a host. It will
automatically detect the type of Host Interface Card it is using without any intervention.
To connect a SCSI array
1
Insert a SCSI VHDCI connector into the Host
Interface Card in the back of the array.
2
Connect the cable from your host system to one
of the VHDCI connectors on the Host Interface
Card connector on the back of the array.
3
If the SCSI array is the last device on the bus,
you must attach a VHDCI terminator to one
connector of the SCSI Host Interface Card or
Exhibit 3.2-3 SCSI cable options.
SCSI-1
Fast SCSI
Fast Wide SCSI
Wide Ultra SCSI
Wide Ultra SCSI
Wide Ultra 2 SCSI
Ultra 3 or Ultra160 SCSI
Exhibit 3.2-4 SCSI interface cards: left without terminators attached; right with a terminator attached.
13
ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual
3.2.2 Connecting a SCSI Array
Bus speed, MB/sec.
max.
5
10
20
40
40
80
160
connect a cable between the second connector
and the next device on the SCSI bus.
4
The SCSI Host Interface Card has a rotary
binary-coded hex switch which allows you to
set the SCSI ID of the HIC. Be sure the selected
ID is different from all other SCSI devices on
the bus.
Note
If slower devices are connected on the same
SCSI bus as the Ultra 160 array, the bus will
communicate at the rate of the slowest device.
Bus width,
Max. bus lengths,
bits
meters
Single-ended
8
6
8
6
16
6
16
3
16
1.5
16
-
16
-
Max. device
support
LVD
-
8
-
8
-
16
-
4
-
8
12
16
12
16
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