HP StorageWorks 3000 RAID Array - Manual (Page 23)

Product Overview 1-7
Compaq Confidential – Need to Know Required
Writer: Bob Young Project: RAID Array 3000 Controller Shelf Hardware User’s Guide Comments:
Part Number: EK-SMCPQ-UG. D01 File Name: b-ch1 Product Overview.doc Last Saved On: 12/4/00 1:09 PM
Figure 1– 3 shows the major components in the controller shelf. Its
characteristics are outlined below.
■ An easily removable, two channels, resident RAID array controller and
an adjacent empty slot for a second (redundant) controller (optional)
■ 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 AC 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 contains a 9-pin serial port connector (for
controller configuration) and a 9-pin UPS monitor connector
■ Two AC power supplies (one redundant) that power the shelf
components
■ The shelf contains two dual-speed, plug-in blowers for shelf cooling
SH R-10 51b
AC P ower
Su pp lie s
B lowers
RAID
Co ntroller
Host 0
I/O Mod ule
Ho st 1
I/ O Mo du le
B la nk
Pa ne l
Dev ice I /O
Mod ule
Figure 1-3. Controller shelf major components