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

Storage Devices

7–4 UltraSCSI RAID Enclosure

Disk Drive SBB Status Reporting

The array controller monitors the status of the disk drive SBBs. If a

fault occurs, the fault and the disk drive SBB device address (SCSI

target ID) are reported to the array controller or host for processing.

The disk drive status LEDs define the status of individual disk drive

SBBs.

Each disk drive SBB has two LED indicators (see Figure 7–4) that

display the SBBs status. These LEDs have three states: O

N, OFF, and

LASHING.

Figure 7–4 Disk Drive Status LEDs

• The green device activity LED (C

ALLOUT 1) is ON or FLASHING

when the disk drive SBB is active.

• The amber device fault LED (C

ALLOUT 2) indicates an error

condition when it is either ON or FLASHING. The array controller

controls this LED. The device fault LED also FLASHES when the

array controller issues a “locate” command.

Caution

Removing a disk drive SBB when the upper LED is ON or

LASHING might compromise data integrity.

Figure C

ALLOUTS

1. Device activity LED

2. Device fault LED

CXO4652B