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Single host, two master subsystems, and one slave subsystem for each master
This configuration provides a Differential SCSI solution using two dual-bus
master CR8e subsystems and two dual-bus slave CR8e subsystems connected to a
single host computer with a standard Differential SCSI host adapter. From this
configuration an array can be created using up to thirty-two (32) disk drives — 8
drives per drive group.
Verify that the jumper at location JP1 on the S2S Interface card installed in
1
the Master #2 cabinet is removed. This will terminate the SCSI bus.
Rear View CR8e with Dual-Bus Module
SAF-TE Card
2-Chl Ultra Extender Card
Rear View CR8e with Dual-Bus Module
SAF-TE Card
I/O Interface
Card
Ultra S2S RAID Controller
S2S Differential Interface Card
(Disable termination jumper installed at JP1)
Verify that the jumper at location JP1 on the S2S Interface card installed in
2
the Master #1 cabinet is installed. This will disable termination on this
subsystem.
3
Connect one end of a 12 meter data cable to the host bus adapter (HBA) and
the other end to the "IN" port on the CR8e master #1 subsystem S2S Interface
card. Secure the cable connectors using the thumb screws.
Connect one end of a 12 meter data cable from the Master #1 cabinet S2S
4
Interface card "OUT" port and the other end to the Master #2 cabinet S2S
Interface card "IN" port. Secure the cable connectors using the thumb screws.
RIGHT SIDE
Slave #1
I/O Interface
Card
RIGHT SIDE
Master #1
I/O Interface
Chl x
Differential SCSI
Serial B - S2S Cluster cable (intercabinet communications)
Host Adapter
Host Computer
Rear View CR8e with Dual-Bus Module
SAF-TE Card
2-Chl Ultra Extender Card
Rear View CR8e with Dual-Bus Module
SAF-TE Card
Card
Ultra S2S RAID Controller
S2S Differential Interface Card
(Terminate card removing jumper at JP1)
12 meter data cable
Duplex (Dual-Active) Configuration
Installation
RIGHT SIDE
Slave #1
I/O Interface
Card
RIGHT SIDE
Master #2
33
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