Data Domain DD400 Series, User Manual

Page: 215 / 300

Chapter 19: Hardware Servicing 177
Customer Operations
14. Use the following command to check that the disk is recognized by the restorer. In the
command display, the disk
State should be hot spare or the Additional Status should be
reconstructing .
# disk show raid-info
15.
Return the removed disk in the antistatic bag and other packaging from the replacement disk.
Copy the RMA number onto the packaging.
Replace Power Units
A restorer has three power supply units that are accessible from the back panel of the chassis (see
Figure 22). A restorer needs a minimum of two functional power units to power up and to run.
Always replace a failed power unit as soon as possible.
The
alerts show current
command includes a message if a power unit fails . The
system
status
command includes a line that gives the status of power supplies. To identify the failed
unit, look at the back panel of the machine, and check the LED on each unit.
Each power unit has an LED that glows green when the unit is functional. The LED glows orange if
the unit has failed, but still has power. The LED is completely off if the unit has no power. In
Figure 22, the pointers to the power units end at the LEDs near the top of each unit. Also, when a
unit fails, the power unit failure LED on the
front panel of the system glows red. See Figure 23 on
page 178.
Figure 22: Power units
Power
units