You can cut over a file-based import when the import session reaches the
Ready For Cutover state. The following steps show the manual import workflow in
PowerStore Manager:
Select the file import session to cut over.
Select the
Cutover import action to cut over to the
PowerStore cluster. The following cutover processing occurs:
NOTE:Cutover may cause a temporary data unavailability to the NAS clients.
The production file interfaces are disabled on the source system and are enabled on the destination system.
NOTE:For an SMB import, the switch-over is disruptive for the clients and the Active Directory configuration is imported if needed. For an NFS import, the switch-over is transparent as file handles are preserved, NLM locks are reclaimed on the destination.
The incremental background data copy operation begins after the cutover completes. The file system data is moved to the destination in the background.
The destination system serves the clients; data that is requested by the client is synchronized immediately; write operations are synchronized back to the source system before acknowledging, so the source remains authoritative and a rollback is possible at any time. I/O throughput is degraded at this stage.
NOTE:If the source data becomes unavailable, the service is interrupted.
When all files are synchronized, the file import session transitions to
Ready For Commit.
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