Date: Fri, 27 Aug 2021 08:08:45 +0000 From: Matt Churchyard <matt@userve.net> To: joe mcguckin <joe@via.net>, freebsd-fs <freebsd-fs@freebsd.org> Subject: RE: Backups to disk Message-ID: <a87b3fe361524fd4a193f155bead2a15@userve.net> In-Reply-To: <13B8BFED-E1E0-4912-BD9E-6581C308FF25@via.net> References: <13B8BFED-E1E0-4912-BD9E-6581C308FF25@via.net>
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Do you mean you created a second zfs pool? A pool can contain multiple file=
systems.=20
Judging by the command you give it looks like you have two pools called "ar=
chive" and "backup", which by default will contain a single filesystem (dat=
aset) with the same name, mounted on /{name}.
If that's the exact command you used then the recv argument is wrong. It sh=
ould be the dataset name, not a path. (i.e. drop the first slash if you wan=
t the backup stored in a dataset called 08252021 on the backup pool)
Personally, assuming you are backing up the primary dataset on the "archive=
" pool, I would just do something like the following -
zfs snapshot archive@08252021
zfs send archive@08252021 | zfs recv backup/archive
Then the next day (as long as you still have the 08252021 snapshot) -
zfs snapshot backup@08262021
zfs send -i 08252021 archive@08262021 | zfs recv backup/archive
This will send only the changes, and you can always look through the snapsh=
ots on the backup pool to see the list of snapshots and dates. Creating a b=
ackup dataset using the date doesn't make a lot of sense, to me at least. A=
fter this you can delete the 08252021 snapshot on the archive pool unless y=
ou have any specific reason to want to keep it. If the backup pool was on a=
separate system then it often makes sense to keep some snapshots so you ca=
n easily recover files on the live system without having to pull them from =
backup. If the backup pool is in the same system then there's not really an=
y point.
Matt
-----Original Message-----
From: owner-freebsd-fs@freebsd.org <owner-freebsd-fs@freebsd.org> On Behalf=
Of joe mcguckin
Sent: 27 August 2021 00:29
To: freebsd-fs <freebsd-fs@freebsd.org>
Subject: Backups to disk
I created a second zfs filesystem to be used as backups. I made a snapshot =
and tried zfs send archive@08252021 | zfs recv /backup/08252021.
This fails with Freebsd complaining that zfs recv got a signal and aborted.
Any thoughts?
Thanks,
Joe
Joe McGuckin
ViaNet Communications
joe@via.net
650-207-0372 cell
650-213-1302 office
650-969-2124 fax
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