2-7
About the DuraStor Storage Subsystem
processor monitors the temperature and reports when this
condition occurs.)
If a fan fails, the Fault LED lights up.
Failed cooling fans must be
replaced immediately
.
The cooling fan module can be hot-swapped during normal
operation. See
Replacing the Cooling Fan Module
on page 5-4
for
more details.
Caution:
Do not operate the DuraStor RAID appliance for
longer than 5 minutes with the cooling fan module
removed. Cooling is unavailable to all components while
the fans are removed.
SCSI RAID Appliance I/O Connectivity Panel
The I/O connectivity panel of the SCSI RAID appliance connects
the host computer (server) to the storage enclosure disk drives. See
Figure 2-9
for detailed connection information.
Figure 2-9. SCSI RAID Appliance I/O Connectivity Panel
Four 68-pin very-high-density SCSI connectors connect the host
system Host Bus Adapters (HBAs) to the DuraStor SCSI RAID
controller host channels. From left to right:
■
Host 1 In (CH 3)
■
Host 2 In (CH 0)
■
Host 1 Out
■
Host 2 Out
!
Ext
Int
HOST 2 OUT
HOST 1 OUT
HOST 2
IN (CH 0)
HOST 1 IN (CH
3)
DISK CH 2
DISK CH 1
SERIAL B
SERIAL A
Connect to Host System
Connects to Host System
or to Storage Enclosure
I/O Card
Connects to Storage
Switches Mode
from OCP (INT) to
VT-100 Terminal
(EXT)
Enclosure I/O Card
Connects to Host System
or to Host In via Jumper
Cable
Connects to External
VT-100 Terminal
Connects to External
VT-100 Terminal
DuraStor IUG.book Page 7 Wednesday, January 30, 2002 10:49 AM
