Date: Mon, 16 Jun 2008 11:25:22 -0500 From: Brooks Davis <brooks@freebsd.org> To: Jeremy Chadwick <koitsu@freebsd.org> Cc: Randy Bush <randy@psg.com>, freebsd-fs@freebsd.org Subject: Re: zfs dump to non-zfs host Message-ID: <20080616162522.GA31835@lor.one-eyed-alien.net> In-Reply-To: <20080615192750.GA14559@eos.sc1.parodius.com> References: <48532183.2040306@psg.com> <20080615192750.GA14559@eos.sc1.parodius.com>
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[-- Attachment #1 --] On Sun, Jun 15, 2008 at 12:27:50PM -0700, Jeremy Chadwick wrote: > On Sat, Jun 14, 2008 at 10:40:19AM +0900, Randy Bush wrote: > > currently, my dump server is a large non-zfs raid to which i use dump > > over ssh to a remote host, as in > > > > /sbin/dump 0Luaf - /dev/twed0s1a | $SSH $BSYS "/bin/cat > $DDIR/base" > > > > now i have a zfs host that i want to dump to this server. yes, i know i > > can snapshot on the zfs system itself. but what if it goes completely > > dead? it is in an earthquake zone, ... > > > > /sbin/dump does not work, of course. > > > > files created with zsend might not be decodable in a future version, so > > i can not zsend | to it. > > The only two options I see are "zfs send" (which you've covered), and > using rsync for that host. We switched to rsync exclusively (regardless > of fuilesystem) due to dump -L becoming slower and slower over time on > UFS2 filesystems (a known problem), plus more or less deadlocking the > system while it makes the snapshot. Clearly someone needs to teach libarchive to speak zfs send-recieve so people can save these things in tarballs. 1/2 :-) -- Brooks [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (FreeBSD) iD8DBQFIVpPxXY6L6fI4GtQRAqvUAJ9kowrugZgyNLQedOimaBFiX3HuAACePFd3 wIgNX5J0aZj4gk/j+Xj6xho= =D/WZ -----END PGP SIGNATURE-----
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