Multi-level ufsdump of file(s), /etc/dumpdates

• Previous message: Philip M Grisedale: "SUN Rays"
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Date: Wed, 25 Feb 2004 11:16:21 -0500
To: Sun Managers <SunManagers@sunmanagers.org>

Ufsdump nicely handles incremental backups, so I'd like to use it to back
up my data in /foo/data and keep the dumps in /foo/archive, where /foo is
a nice big filesystem.

The problem is that if you give ufsdump a file or directory to back up,
eg. "ufsdump 0uf /foo/archive/bar.dump /foo/data", then it does not update
/etc/dumpdates and hence every dump at every level is a full dump, so you
can't do incrementals.

Now if you try to be clever and manually add entries to /etc/dumpdates for
filesystem /foo, then ufsdump ignores it, ie. it not only doesn't write to
/etc/dumpdates when dumping files, but it doesn't read it either.

Since ufsdump doesn't have any kind of `exclude' switch, the next obvious
solution would be to dump /foo but mark /foo/archive as excluded from
dumps at the filesystem level, but I can find no such support for this in
Solaris' UFS.

So, is it possible to do a multi-level ufsdump of files in Solaris, and if
so then how?

If not, then suggestions for an _elegant_ solution to incremental backups
to separate files using native tools would be welcome.

-Andrew-

-- 
 _______________________________________________________________________
| -Andrew J. Caines-   Unix Systems Engineer   A.J.Caines@halplant.com  |
| "They that can give up essential liberty to obtain a little temporary |
|  safety deserve neither liberty nor safety" - Benjamin Franklin, 1759 |
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• Previous message: Philip M Grisedale: "SUN Rays"
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