Limitations when the MetroCluster configuration is in switchover
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When the system is in switchover, NetApp recommends that you avoid performing certain operations.
The following operations are not recommended when the system is in switchover and you should only perform them under guidance from NetApp support:
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Creating or deleting aggregates
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Creating or deleting volumes (including encrypted volumes)
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Creating or deleting SVMs
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Creating or deleting LIFs
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Adding or removing disks (only if you are replacing them as part of a recovery procedure)
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Performing configuration changes to SnapMirror SVM DR
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Modifying existing broadcast domains or creating new broadcast domains
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Modifying network subnets
Hardware replacement in switchover
Use the following procedures to replace controller hardware when the system is in switchover:
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If you need to replace a controller of the same type, at the site not in switchover, follow the procedure to Recover from a multi-controller or storage failure.
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If you need to replace the controller modules and chassis while the nodes are switched over at the surviving site, shut down both controllers and then perform the procedure to Recover from a multi-controller or storage failure.
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If you need to replace a controller with a different type of controller, follow the procedure for your configuration in Choose a controller upgrade procedure.
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If your system is in switchover because of a controller failure or if you experience a controller failure while in switchover, you must first replace the controller hardware, perform a switchback, and then perform a controller upgrade:
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To replace the controller hardware and perform the switchback, follow Recover from a multi-controller or storage failure.
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After you have replaced the hardware, perform a controller upgrade using the procedures in Choose a controller upgrade procedure.
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