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

Environmental Monitoring Unit
3–24 UltraSCSI RAID Enclosure
Fault Code 04
Master EMU cannot communicate with
expansion EMU.
1. Ensure PVA SCSI ID switches settings are as follows:
• Master enclosure — 0
• First expansion enclosure — 2
• Second expansion enclosure — 3
2. If any PVA SCSI ID switch setting is changed, the controllers must be RESET to recognize the
new setting.
3. Ensure the EMU cables are properly connected.
4. Disconnect and reconnect each EMU cable one at a time. Replace the defective cable.
5. Replace the EMU.
Fault Code 05
Master EMU cannot communicate with
the array controller.
1. Replace the EMU.
2. Replace the array controller.
Fault Code 06
One or more temperature sensors
indicate an “invalid” temperature—one
that is greater than 49°C (120°F).
1. Replace the EMU.
2. Instruct field service that temperature sensors need replacing.
Table 3–8 EMU Fault Code Displays (Continued)
Fault Code, Cause, Corrective
Action
EMU LED Display
1234
5678
CXO5763A
1234
5678
CXO5764A
1234
5678
CXO5765A