IBM SAN Volume Controller 2145-CG8, Руководство по техническому обслуживанию аппаратной части

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The power-cable assembly is composed of a power cable (two power cables in the SAN Volume
Controller model 2145-CG8 or model 2145-CF8) and a signal cable that are bound together. You can
remove the power-cable assembly if you have problems with the power supply and suspect that a power
or signal cable is defective. When removing the power-cable assembly, ensure that you also remove it
from the uninterruptible power supply.
Perform the following steps to remove the power-cable assembly:
1. Check the SAN Volume Controller models 2145-CG8, 2145-CF8, 2145-8A4, 2145-8G4, and 2145-8F4 or
2145-8F2 power LED (
1
in Figure 90).
v If the light is on, go to step 2.
v
If the light is either off or flashing, power has already been removed from the SAN Volume
Controller. Go to step 7 on page 104.
1
Power LED
Important: SAN Volume Controller nodes operate in pairs. Both SAN Volume Controller nodes are
in the same I/O group. One SAN Volume Controller must be operational if you are servicing the
other SAN Volume Controller. If both SAN Volume Controller nodes are not functioning, you cannot
access any of the disks in that I/O group.
2. Turn off the node while ensuring that its data is mirrored and synchronized. See MAP 5350 in the
IBM System Storage SAN Volume Controller Troubleshooting Guide for more information.
Attention: If both SAN Volume Controller nodes are online, removing the power from one SAN
Volume Controller can cause performance degradation while I/O operations are automatically
rerouted to other SAN Volume Controller. Ensure that this performance outcome is acceptable before
continuing with this procedure.
3. Press and release the power-control button
1
shown in Figure 91 on page 104 for SAN Volume
Controller models 2145-CG8, 2145-CF8, 2145-8A4, 2145-8G4, and 2145-8F4 or 2145-8F2. Wait one
minute for the SAN Volume Controller to turn off. Ignore a missing node error code if displayed by
other nodes in the cluster. When maintenance procedures are completed, the error will resolve itself.
1 1
svc00324b_cap
1 1
2145-CG8
2145-CF8 2145-8A4 2145-8G4 2145-8F4
2145-8F2
Figure 90. Power LED on the SAN Volume Controller models 2145-CG8, 2145-CF8, 2145-8A4, 2145-8G4, and
2145-8F4 or 2145-8F2 operator-information panel
Chapter 2. Removing and replacing parts
103
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