Date: Wed, 26 Jan 2011 22:10:26 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD 9/ZFS: Striped Pool (2 disks) migrating to mirror (onto additional disk) Message-ID: <4D409BD2.6080201@infracaninophile.co.uk> In-Reply-To: <4D4098C4.6000105@mail.zedat.fu-berlin.de> References: <4D3FDE82.4000105@mail.zedat.fu-berlin.de> <AANLkTi=udjU-MKEU%2BAHU2DyyLL3sMVcKbT3WsLGW7YTN@mail.gmail.com> <20110126195800.GM75125@dan.emsphone.com> <AANLkTimgbVvsFjc-FSdSoKe3cC6uNYNavvL1-WaCRSn4@mail.gmail.com> <20110126204233.GN75125@dan.emsphone.com> <AANLkTimJwT6pShtC2c-O2=a=78LBB8%2Bm=WoFQXTkOqk9@mail.gmail.com> <4D4098C4.6000105@mail.zedat.fu-berlin.de>
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On 26/01/2011 21:57, O. Hartmann wrote:
> My thinking was simple, I thought since the two physical 1TB disks buil=
d
> one joint pool of 2TB overall capacity, I could simply 'mirror' this
> pool to another disk of the same capacity.
> Is there a way to 'send' via ZFS the data of the pool to the backup
> disk, like a snapshot from one pool to another one?
Yes. Predictably enough the command is 'zfs send ...' -- with a
counterpart 'zfs receive ...' See zfs(1) for details. You have to send
a snapshot, or the delta between a previous snapshot and a more recent
one. However, it's not to difficult to turn that into effectively
sending the state of a live filesystem so long as there aren't too many
changes going on.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
JID: matthew@infracaninophile.co.uk Kent, CT11 9PW
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