IBM Storwize V7000 Troubleshooting And Maintenance Manual page 104

Attention: Do not replace one type of node canister with another type. For
example, do not replace a model 2076-112 node canister with a model 2076-312
node canister.
Be aware of the following canister LED states:
v If both the power LED and system status LED are on, do not remove a node
v If the system status is off, it is acceptable to remove a node canister. However,
v If the power LED is flashing or off, it is safe to remove a node canister.
Attention: Even if a node canister is powered off, it is still possible to lose data.
Do not remove a node canister unless directed to do so by a service procedure.
To replace the node canister, perform the following steps:
Procedure
Figure 24. Rear of node canisters that shows the handles.
86
Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide
canister unless directed to do so by a service procedure.
do not remove a node canister unless directed to do so by a service procedure.
However, do not remove a node canister unless directed to do so by a service
procedure.
1. Read the safety information to which "Preparing to remove and replace parts"
on page 85 refers.
2. Confirm that you know which canister to replace. Go to "Procedure:
Identifying which enclosure or canister to service" on page 52.
3. Record which data cables are plugged into the specific ports of the node
canister. The cables must be inserted back into the same ports after the
replacement is complete; otherwise, the system cannot function properly.
4. Disconnect the data cables for each canister.
5. Grasp the handle between the thumb and forefinger.
Note: Ensure that you are opening the correct handle. The handle locations
for the node canisters and expansion canisters are slightly different.
Handles for the node canisters are located in close proximity to each other.
The handle with the finger grip on the right removes the upper canister ( 1 ).
The handle with the finger grip on the left removes the lower canister ( 2 ).
6. Squeeze them together to release the handle.
1
2