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Date:      Mon, 14 Nov 2016 16:30:58 -0800
From:      Chuck Swiger <cswiger@mac.com>
To:        Victor Sudakov <vas@mpeks.tomsk.su>
Cc:        FreeBSD - <freebsd-questions@freebsd.org>
Subject:   Re: zfs send/receive as dump/restore alternative
Message-ID:  <022AE8EF-815D-45D1-AEC8-0165BE7683CD@mac.com>
In-Reply-To: <20161115001751.GA83033@admin.sibptus.transneft.ru>
References:  <20161114054657.GA66229@admin.sibptus.transneft.ru> <20161114103657.63c03ab1d039c59db18fad90@sohara.org> <20161115001751.GA83033@admin.sibptus.transneft.ru>

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On Nov 14, 2016, at 4:17 PM, Victor Sudakov <vas@mpeks.tomsk.su> wrote:
> Steve O'Hara-Smith wrote:
>>>=20
>>> I now run a couple of systems fully on zfs, and use e.g.
>>> "zfs send -Rv zroot@2016-10-01 > /mnt1/2016-09-25.zfs"=20
>>> for a full system backup to a remote file server.
>>>=20
>>> With restore(8), I could restore any separate filesystem or even a =
single
>>> file/directory from the dump, even interactively.
>>=20
>> 	As others have indicated the zfs stream is not designed as an
>> archive format but rather for efficient filesystem replication.
>=20
> BTW if anyone has experience with enterprise backup software for ZFS
> (e.g. for Solaris), how does it handle the task of restoring
> individual files?
>=20
> Oracle says "consider an enterprise backup solution... if you need
> per-file restoration":
> https://docs.oracle.com/cd/E18752_01/html/819-5461/gbchx.html =
<https://docs.oracle.com/cd/E18752_01/html/819-5461/gbchx.html>;

The Sun E450 and E4500s I used to deal with had Legato NetWorker as =
their
"enterprise backup solution", which I think is now owned by EMC / Dell.

It was somewhat smarter than doing a Unix filesystem level dump/restore.
In particular, it understood a bunch of common filetypes and implemented
delta archiving for mbox files and the like rather than having to =
re-archive
entire copies of changed files.

(Think of Time Machine, except without a GUI or a nice graphically =
viewable
timeline which you could choose different versions from the backup by =
date.
Well, possibly Legato had an X11-based GUI tool, but the commandline =
version
worked much better at the time I was using it.)

Regards,
--=20
-Chuck




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