Power Supply - Compaq RAID Array 4100 User Manual

4-8 Compaq StorageWorks RAID Array 4100 User Guide

Power Supply

Figure 4-10. Fan Assembly LED
See "Replacing Components" later in this chapter for important information on
how to replace this module.
CAUTION: Do not allow the RA4100 to operate for more than five minutes
without a working Fan Assembly in place. Operation longer than this with no
forced air cooling, especially in arrays with a full complement of drives, may
permanently damage the drives or electronics in the RA4100 and result in data
loss.
When hot-plugging the Fan Assembly, be sure to have everything ready before
you begin the procedure. The procedure should take no more than one minute.
CAUTION: Failure to follow the instructions in this section can result in loss of
data.
If the status and power


power source to the supply. Redundant operation is not assured until power is
returned to the device.
Verify that the power LED
LEDs are both OFF on one supply, check the AC

on the power supply is amber.