That is because you had only one other choice: filesystem level copy.
With ZFS I believe you will find that snapshots will allow you to have
better control over this. The send/receive process is very, very similar
to a mirror resilver, so you are only carrying your previous process
forward into a brave new world. You'll find that send/receive is much
more flexible than broken mirrors can be.
 -- richard

Perhaps, but when the crunch is on, it is hard to beat the 3 minute cloning. "zfs send" will not be done in 3 minutes, especially if the version used is before "zfs send speed fixes", like official Sol 10 10/08. (I am not sure, but zfs send sounds like you already need the 2nd server set up and running with IPs etc? )

Anyway, we have found a procedure now, so it is all possible. But it would have been nicer to be able to detach the disk "politely" ;)

Lund



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