On Fri, 2 Feb 2018, Iturriaga Woelfel, Markus wrote:
I used rsync to copy data including hard links:
rsync -avxHAX --progress /var/lib/backuppc /copy
Because of all the hard links, rsync gets incredibly slow and uses a
huge amount of space in /tmp when trying to copy BackupPC (v.3)
Yes this is v 3.3.0.
directories. Since it looks like you're doing this on the same system,
something like a tar pipe may work better for you.
I gave up the rsync, due to hardlinks - even thou it does the right thing,
and was almost there.
The /tmp is fine, but the speed is 3GB per day on hardlinks, this is
terrible.
I tried the "dump | restore" way,
dump -0 -f - /var/lib/backuppc | restore -r -f -
after few minutes:
restore: cannot write to file /tmp//rstdir1517604355: No space left on
device
DUMP: Broken pipe
DUMP: The ENTIRE dump is aborted.
seems restore is first writing some files to /tmp.. ok used
dump -0 -f - /var/lib/backuppc | restore -r -T /copy -f -
when it gets to the
DUMP: dumping (Pass IV) [regular files]
it just stays there for 12h with almost nothing copied.
tar -C /var/lib/backuppc --one-filesystem --acls --xattrs -cf - . | tar
-C /copy -xvf -
How does this deal with hardlinks?
I am running short on ideas how to copy this.
This seems to be yet another reason why I want to move this to RAID1
now....
(double check that for sanity). You can achieve something similar with
the dump/restore commands if t$
I've had some success with this. PS - removing the "verbose" part will
likely speed up your transfer $
Markus
Thanks anyway
Adam Pribyl
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