Managing a cluster

Performing a giveback

Initiating a giveback

To restore a cluster to normal operation, complete one of the following steps from the takeover filer.

Step	Action
1	If you want to...	Then...
	Initiate a giveback to the failed filer	Enter the following command: cf giveback Note The `cf giveback` command does not succeed if any of the following events are taking place: Dump processes Outstanding CIFS sessions RAID disk additions RAID mirror verification RAID mirror resynchronization Volume creation
	Terminate the following events on the emulated filer, and then initiate a giveback to the failed filer: Dump processes Outstanding CIFS sessions Parity checks RAID reconstructs RAID scrubs Volume creation	Enter the following command: cf giveback -f
2	If you want to...	Then...
2	Force the takeover filer to give back the resources of the failed filer even if the takeover filer detects an error that typically prevents a complete giveback, such as data not being flushed from NVRAM to the failed filer's disks	Enter the following command: cf forcegiveback When the failed filer reboots as a result of a forced giveback, it displays the following message if data from the emulated filer did not fully synchronize with the failed filer's disks: partner giveback incomplete, some data may be lost Caution Use `cf forcegiveback` only in desperate circumstances, when you cannot get `cf giveback` to succeed. You can lose uncommitted data with this command.

Note
After a giveback, the takeover filer's ability to take over its partner automatically is not reenabled until the partner reboots successfully. If the partner fails to reboot, you can enter the cf takeover command to initiate a takeover of the partner manually.

What happens when a giveback is interrupted

If the takeover filer experiences a failure or power outage during the giveback process, the giveback process stops and the takeover filer returns to takeover mode when the failure is repaired or power is restored. Some operations, such as quota initialization, always cause a giveback to fail.