Replacing The Real-Time Clock (Rtc) Battery In An N6200 Series System; Shutting Down The Node; Shutting Down A Node In An Ha Pair - IBM N6270 Hardware And Service Manual

About this task
For more information, see the IBM Environmental Notices and User Guide.
Replacing the Real-Time Clock (RTC) battery in an N6200 series
system
To replace the RTC battery in the controller module , you must perform a specific
sequence of steps.
About this task
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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.
Before you begin
Note: If your system has two controller modules in the same chassis, you must
leave the power supplies turned on at the end of this procedure to provide power
to the partner node.
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 cf status or
94
IBM System Storage: N6200 Series Hardware and Service Guide
This procedure refers to HA pairs, which in releases prior to Data ONTAP 8.0
were called active/active configurations.
All other components in the system must be functioning properly; if not,
contact technical support.
on) by entering the following command at the system console of either node:
For...
7-Mode
Clustered Data ONTAP
storage failover command:
If...
Neither node is in takeover mode
The partner node took over the target node
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
begin removing it from the system chassis.
Continue with the task "Opening the
system".