Compaq StorageWorks UltraSCSI RAID Enclosure (DS-BA370 Series) User's Guide (EK-BA370-UG. C02, September 1998)

Operating the UltraSCSI Enclosure

2–16 UltraSCSI RAID Enclosure

SBB Shelf Status Indicators

SBB shelf status indicators are provided by shelf power supplies and

disk drive SBBs.

Power Supply Status LEDs

The two green LEDs on each power supply (see Figure 2–5) display

the blower, the power bus, and the individual power supply status.

Normally, both these LEDs are O

Figure 2–5 Power Supply Status LEDs

The green shelf status LED (C

ALLOUT 1) is ON when all the power

supplies and all the blowers are operational. If any blower or power

supply fails, this LED turns O

FF.

The green power supply status LED

(CALLOUT 2) is ON when the

power supply is operating properly. If the power supply fails, both its

power supply status LEDs turn O

FF.

Disk Drive SBB Configuration

Part of the initial configuration procedure for the subsystem involves

configuring the disk drives. The disk drive SBB configuration tells the

array controllers the drive SBB device type, plus its physical and

logical location. The array controller requires this initial

configuration information before transferring data blocks to specific

disks to create

storage sets

. Once the configuration process is

complete, the system cannot function properly unless all the disks

remain in the same physical and logical location.

Figure C

ALLOUTS

1. Shelf status LED

2. Power supply status LED

CXO4787B