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cf - controls the takeover and giveback operations of the filers in a cluster
cf [ disable | enable | forcegiveback | forcetakeover |
giveback [ -f ] partner | status | takeover ]
The cf command controls the cluster failover monitor, which determine when
takeover and giveback operations take place within a cluster.
The cf command is available only if your filer has the cluster license.
- disable
- Disables the takeover capability of both filers in the cluster.
- enable
- Enables the takeover capability of both filers in the cluster.
- forcegiveback
- Forces the live filer to give back the resources of the failed filer even though the
live filer detects an error that would prevent a complete giveback. For example, an error
might prevent the failed filer from flushing data in the NVRAM to disk during a giveback.
If the live filer detects this error, it does not perform a giveback. However, using the forcegiveback
option forces a giveback despite such an error. When the failed filer reboots as a result
of a forced giveback, it displays the following message:
partner giveback incomplete, some data may be lost
- forcetakeover
- Forces one filer to take over its partner even though the filer detects an error that
would otherwise prevent a takeover. For example, normally, if a detached or faulty
ServerNet cable between the filers causes the filers' NVRAM contents to be unsynchronized,
takeover is disabled. However, if you enter the cf forcetakeover command,
the filer takes over its partner despite the unsynchronized NVRAM contents. This command
might cause the filer being taken over to lose client data.
giveback [ -f ] Initiates a giveback of partner resources.
Once the giveback is complete, the automatic takeover capability is disabled until the
partner is rebooted. A giveback fails if there are outstanding CIFS sessions or active
system dump processes. If you use the -f option, the cf command terminates
the outstanding CIFS sessions and dump processes before attempting a giveback.
- partner
- Displays the host name of the partner. If the name is unknown, the cf command
displays ``partner.''
- status
- Displays the current status of the local filer and the cluster.
- takeover
- lnitiates a takeover of the partner.
na_partner(1)
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