Recalculating the checksums to resolve out of sync messages
Sometimes an error can occur when checksums are being calculated by the cluster. As a result of this calculation error the CLI console could display out of sync error messages even though the cluster is otherwise operating normally. You can also sometimes see checksum calculation errors in diagnose sys ha showcsum command output when the checksums listed in the debugzone output don’t match the checksums in the checksum part of the output.
One solution to this problem could be to re-calculate the checksums. The re-calculated checksums should match and the out of sync error messages should stop appearing.
You can use the following command to re-calculate HA checksums:
diagnose sys ha csum-recalculate [<vdom-name> | global]
Just entering the command without options recalculates all checksums. You can specify a VDOM name to just recalculate the checksums for that VDOM. You can also enter global to recalculate the global checksum.