1) MC with 8.2.3 7-Mode2) each siteaggr0 mirroredaggr1 not mirrored
It's possible to suppress a takeover only for aggr1 during failover?
No. Filer will configure all aggregates it sees.
What is the reason for your question ? Maintenance ?
Do you mean a normal Failover or a Site-Failover ? In a normal takeover the aggregate is still available, but in a Site-Failover the aggregate can't be used.
-> Site-Failover of an asymmetrical mirroring
But if this occurs (e.g. controller A fails) and controller B have no access to a certain aggregat of controller A at this time, a kernel panic is possible. right ?
It should not panic, especially if the release version is equal or above 7.1.x.
Did you have the problem after a takeover ?