Date: Sun, 22 Jul 2018 21:14:05 +0300 (MSK) From: Dmitry Morozovsky <marck@rinet.ru> To: freebsd-fs@FreeBSD.org Subject: ZFS backup Q: send/recv and mountpoint property Message-ID: <alpine.BSF.2.00.1807222110450.28320@woozle.rinet.ru>
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Colleagues,
still stuck in compiling stable procedure.
Prerequisites:
- some servers, all on ZFS, with layout such as
machine -> unique pool name, usually 2-letters, say, hm and im
- zfs layouts like
hm/R/${fs}, like
hm/R
hm/R/usr
hm/R/usr/local
hm/R/var
hm/R/home
etc, where hm/R has property mountpoint=/ and others just inherit it
- on servers, zfs allows for non-root user to make snapshots, hold, etc, like
Local+Descendent permissions:
group operator hold,send,snapshot
- zfs send -R [-i pool@prev-snap] pool@now-snap | \
ssh backupserver 'zfs recv tgpool/B/zfs/srvname'
Problem:
0. on backup (zfs recv) server, I could not
- overwrite mountpoint property (and I'd better avoid it)
- add canmount=off, especially for child filesets, as it's not inherited (which
could be preferred behaviour)
1. after backup server reboot, if special manual tweaks did not have place,
filesets from backup images overwrite backup filesets, render it unuseable
Any hints?
Or did I missed something trivial?
Thanks, as usual, in advance!
--
Sincerely,
D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer: marck@FreeBSD.org ]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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