HP StorageWorks MSL2024, User'S And Service Manual

Page: 229 / 276

5. Verify that the new power supply is operating properly. The blue and green LEDs on the power
supply module should be lit and the yellow LED should be off, as shown in
Figure 117 . Both
power supplies should be listed on the OCP screen.
Figure 117 Power supply LEDs
.
AC power is connected. 1. Blue
Fan failure. The fan is running too slow or is defective. 2. Yellow
The power supply is producing good power for the Library. 3. Green
Replacing the power supply (MSL4048, MSL8048, and
MSL8096)
This process applies to the MSL4048, MSL8048, and MSL8096 only. A redundant power supply can
be replaced without powering off the Library.
In this process you will:
• Power off the Library, if necessary, and unplug the power cord. (Only Libraries with a single power
supply.)
• Remove the old power supply.
• Install the new power supply.
• Verify the replacement.
CAUTION:
Parts can be damaged by electrostatic discharge. Keep parts in electrostatic containers until needed.
Ensure that you are properly grounded when touching static-sensitive components.
To replace a power supply:
1. If the Library only has one power supply, power off the Library from the front panel, if possible,
and remove the AC power cord. Otherwise, just remove the AC power cord from the power
supply to be replaced.
HP StorageWorks MSL2024, MSL4048, MSL8048, and MSL8096 Tape Libraries User and service
guide 229