James Harr wrote:
> I need to move the archive for backuppc from one NAS to another. We're
> dealing with around 800GB of data (35 million files) over a 100 Mbit
> connection (for the time being, will be 1Gbit in the future), so the
> move will take more than one day.
>
> - dump & restore is out of the question since each NAS is basically a
> sealed box.
> - I'd like to avoid just 'cp'ing it across since it will take a long
> time and I'd like to maintain our backup schedule while we transfer.
> - rsync -aH pukes because it's running out of address space (the 35
> million files are hard to keep track of)
> - rsync -a will work, but it doesn't do the hardlinks.
>
> The last part got me to thinking -- if I could manually run the backuppc
> linker, I could rsync the backups, and just have the linker take care of
> the rest. Does anyone know how to run the linker like this? If there
> isn't a convenient way right now, could I bug one of the developers to
> add a --force flag to it so it'd go through and scan all the files?
>
> I suppose one other option is to build a 64 bit virtual machine with
> qemu, give it a large amount of swap, and then use that to do the rsync
> -aH :P
Look at the BackupPC_tarPCCopy script, but I doubt if it will complete
this in a reasonable amount of time.
I've always just kept the old copy around until the new one accumulated
a suitable history (cut over on Friday evening and try to get complete
fulls over the weekend). You can rsync -aH some of the individual pc
directories over if you need older history and can afford to not share
the space in the pool until they expire and are replaced. I agree that
it would be nice if it were possible to relink these back to the pool
after the fact.
--
Les Mikesell
[EMAIL PROTECTED]
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