Interraid-8E Power Supply Failures; Windows Nt Server Failure - Intergraph InterRAID-8e Hardware User's Manual

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InterRAID-8e Power Supply Failures

The Non-Redundant Power message displays on the Information Control Panel and the
audible alarm sounds for the following two conditions:
u
Non-redundant power
u
Power supply failures
Non-Redundant Power
The InterRAID-8e cabinet ships with two power supplies installed. The two power supplies
provide ample power for all eight disk drive bays in the cabinet. Two power supplies,
however, only provide power supply redundancy for up to four disk drives. If you install
more than four disk drives in the cabinet, you can order a third power supply to regain power
supply redundancy.
For a cabinet with two power supplies and more than four disk drives, the status LCD
displays "Status OK, non-redundant power" and the power supply LED on the front of the
cabinet turns amber. The cabinet operates safely in this state, but in the event of a power
supply failure the remaining power supply may not be sufficient to operate the cabinet and
associated disk drives in all circumstances. The following table illustrates power supply
requirements and options based on the number of installed disk drives:
Number of
Power Supplies
1
2
3
Power Supply Failures
A failed power supply can be identified by checking the Power LED of the power supply.
The Power LED is located on the end of the power supply, visible from the back of the
cabinet. Replace a failed power supply as soon as possible.

Windows NT Server Failure

Intergraph Computer Systems has encountered problems when testing systems running
Windows NT Server using multiple RAID disk arrays. These problems appear to be caused
by limitations in Windows NT Setup, and are currently under investigation. Use the
temporary solutions provided until a fix becomes available.
Less Than Four Disk Drives
Non-redundant
Redundant
Redundant
More Than Four Disk Drives
Additional power supply needed
Non-redundant
Redundant