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Replacing a DIMM in an N7000 series system
To replace a DIMM in the system, you must perform a specific sequence of tasks.
About this task
v You can use this procedure with all versions of Data ONTAP supported by your
v This procedure refers to HA pairs, which in releases prior to Data ONTAP 8.0
v All other components in the system must be functioning properly; if not, contact
Shutting down the node
You shut down a node using different procedures, depending on whether it is a
stand-alone system or part of an HA pair.
Shutting down a node in an HA pair
To shut down the node you must determine the status of the node and, if
necessary, take over the node so that the partner continues to serve data from the
node's storage.
Procedure
1. Check the status of the target node (the node you want to perform maintenance
2. Take one of the following actions, depending on the result of the storage
3. Take over the target node by entering the following command from the partner
72
IBM System Storage: N7000 Series Hardware and Service Guide
system.
were called active/active configurations.
technical support.
on) by entering the following command at the system console of either node:
For...
7-Mode
Cluster-Mode
failover show or cf status command:
If...
Neither node is in takeover mode
The partner node took over the target node
The target node took over the partner node
node's console:
For...
7-Mode
Cluster-Mode
Issue the command...
cf status
storage failover show
Then...
Go to the next step in this procedure.
The target node is in a state where you can
shut it down; go to the next step in this
procedure.
1. Correct the problem that caused the
takeover.
2. Run the storage failover giveback or
cf giveback command from the target
node console.
3. Go back to the beginning of this
procedure.
Issue the command...
cf takeover
storage failover takeover -bynode node
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