Hi,
I had found some information online that with the --H option and rsync you
preserve hardlinks?
The data is mixed, v3-v4, so we still have hardlinks. Should we try to migrate
these v3 to v4 before copying? Would it be faster?
I read that instead of dd you could use dump, which actually is aware of free
disk space for ext(3-4). Any ideas?
And would it be an idea to let Nightlies run a couple of times?
Thanks for your answer in any case ! It’s going to be.. weeks yeah :s
Nino
From: Ray Frush [mailto:fr...@rams.colostate.edu]
Sent: Wednesday, August 22, 2018 7:06 PM
To: backuppc-users@lists.sourceforge.net
Subject: Re: [BackupPC-users] Copying backups to other host
Nino-
If your old BackupPC instance is version 3.x, then you're advised to use 'dd'
to make a perfect image of the device that the cpool folder resides in.
BackupPC 3.x uses extensive use of hardlinks, and the only reliable to copy the
cpool is to take an image of the block device with 'dd'.
BackupPC 4.x is a little more forgiving, and you may be able to move things
with rsync.
In either case, 200TB is a pretty large pool, and it's going to take some time
to move that!
--
Ray Frush "Either you are part of the solution
T:970.491.5527 or part of the precipitate."
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
Colorado State University | IS | System Administrator
On Wed, 2018-08-22 at 13:25 +0000, Nino Bosteels wrote:
Dear list,
We’re trying to copy the backups from one instance to another to use them as an
archive, whilst starting a fresh backuppc on another instance.
But we’re not sure which folders to copy and even more so, how. We’ve been
using rsync –avzH –delete to copy the pc folder over. But now we’re in doubt if
that is sufficient? I think that we’d need to copy the cpool folder too (at
least).
Can anybody clarify? The sole resource (old) I found was somebody suggesting to
use dd.
Thanks for your time and answer(s). We’re kind of stressing out, since we’d
like to cancel the subscription end of the month. And we’re talking 200TB in
the cpool folder !!
Kr,
Nino
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