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need to reformat hard drive first???

PostPosted: Fri Jul 17, 2015 9:26 pm
by kengh
Is it necessary to reformat a hard drive which is formatted as HFS+ Journaled (standard Mac format) containing data before adding it to a ZFS pool?

Re: need to reformat hard drive first???

PostPosted: Sat Jul 18, 2015 1:07 am
by lundman
No, just unmount it with diskutil, and then create pool on it with "-f". Make sure you get the right disk.

Re: need to reformat hard drive first???

PostPosted: Sat Jul 18, 2015 1:15 am
by kengh
lundman wrote:No, just unmount it with diskutil, and then create pool on it with "-f". Make sure you get the right disk.


OK good. Thanks. The disk I have in mind will be part of a two-way mirror. The other disk is a new unused one and I was concerned that I might have to "wipe" it first.