Controller Shelf Major Components - Compaq StorageWorks RAID Array 3000 Controller Shelf Hardware User's Manual

RAID Array 3000 Controller Shelf
Figure 1–3 shows the major components in the controller shelf. Its characteristics
are outlined below.
An easily removable, two channel, resident RAID Array controller and an ad-
jacent empty slot for a second (redundant) controller (optional)
There are two 68-pin VHDCI female SCSI connectors on the front panel of the
device I/O assembly which interconnect the RAID controller to the SCSI
buses in each storage shelf. SCSI connections to multiple Device Expansion
Shelves are made using Trilink adapters
The front of the shelf contains two LEDs that monitor the status of the shelf
and the shelf dc power supplies
The front of the shelf has a toggle switch that allows the operator to disable
the shelf alarm during an error condition
The shelf host I/O assemblies each contain two 68-pin VHDCI female SCSI
connectors that interconnect the host systems to the RAID controller
Each host I/O assembly contain a 9-pin serial port connector (for controller
configuration) and a 9-pin UPS monitor connector
Two dc power supplies (one redundant) that power the shelf components
The shelf contains two high-speed, plug-in blowers for shelf cooling
Figure 1–3 Controller Shelf Major Components
D C P ow er
R AID
Su pp lie s
C o ntr oller
1–6
B la nk
Pa ne l
H ost 0
H o st 1
I/O M od ule
I/ O Mo du le
B low er s
D ev ice I /O
M od ule
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