I pushed bin/BackupPC_migrateV3toV4 to git. It uses the hybrid approach I
mentioned - V3 backups still use the same forward deltas; this script only
replaces the hardlinked backups in each directory with V4 attrib files (and
MD5 digests).
Usage:
BackupPC_migrateV3toV4 [-p] [-v] [-h host [-n V3backupNum]]
So to convert a specific backup and host, use both -h ClientName and -n
BkupNum. If you don't specify -n, then all that host's V3 backups will be
converted.
Warning: with no arguments, it will try to convert every v3 backup (maybe I
should change that).
There are some related changes in several other places, including
lib/BackupPC/View.pm, that make the V3 hybrid storage work correctly with
the rest of BackupPC. So you'll need to pull all the new code from git to
test.
If you want to test this, I'd recommend testing it on a single or series of
V3 backups. You can safely copy the backup trees using cp -prl (which
maintains the hardlinks), eg:
cd /data/BackupPC/pc/exampleHost
mv 5 5.orig ; cp -prl 5.orig 5
mv 6 6.orig ; cp -prl 6.orig 6
mv 7 7.orig ; cp -prl 7.orig 7
cp backups backups.save
If you want to put things back the way they were:
rm -rf 5 ; mv 5.orig 5
rm -rf 6 ; mv 5.orig 6
rm -rf 7 ; mv 5.orig 7
# copy the [567] lines from backups.save into backups;
# only do "mv backups.save backups" if you are sure no
# new backups have been done
Craig
On Fri, Mar 10, 2017 at 7:49 AM, Michael Huntley <mich...@huntley.net>
wrote:
>
>
> On March 9, 2017 11:47:09 PM Pavel Hofman <pavel.hof...@ivitera.com>
> wrote:
>
> > mph,
> >
> > Actually we are based on drives only. I could make a huge 10TB tar and
> > put it somewhere but the idea of conversion and having all the backupcs
> > together...
>
> Agreed! A 10TB tar file on spinning media not practical. You already have
> that....
>
> >
> > Anyway, thanks a lot for your suggestion, should the hybrid storage not
>
> I'll be testing along with you. I've got tons of data to work with
> here....
>
> Cheers!
>
> mph
>
>
> > perhaps make the way through I will head in this direction.
> >
> > Best regards,
> >
> > Pavel.
> >
> > Dne 8.3.2017 v 16:55 Michael Huntley napsal(a):
> >>
> >>
> >> Pavel - have you considered using tar+tape to archive your data? I deal
> >> with CPA's and lawyers so everything must be saved basically forever but
> >> it doesn't mean the data must be instantly available. Just a thought.
> >>
> >> Cheers!
> >>
> >
> > ------------------------------------------------------------
> ------------------
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> > _______________________________________________
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> >
>
>
>
> ------------------------------------------------------------
> ------------------
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> dictionary content that is easy and intuitive to access. Sign up for an
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>
------------------------------------------------------------------------------
Announcing the Oxford Dictionaries API! The API offers world-renowned
dictionary content that is easy and intuitive to access. Sign up for an
account today to start using our lexical data to power your apps and
projects. Get started today and enter our developer competition.
http://sdm.link/oxford
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