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RAID Array 3000 Controller Shelf
1–6 EK–SMCPQ–UG. C01
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
SHR-1051
DC Power
Supplies
Blowers
RAID
Co ntroller
Host 0
I/O Module
Host 1
I/O Module
Blank
Panel
Device I/O
Module