Re: [BackupPC-users] Problems with hardlink-based backups...
2009-09-01 23:22:25
Jeffrey J. Kosowsky wrote:
> > I read the docs before setting it up and it was very obvious to me that
> > planning was required. Then again, I've been doing this for a while.
> > But it *was* in the documentation, if not in-your-face explicit.
>
> OK - can you show me where in the documentation it mentions the issue
> with copying/moving BackupPC data and hence the recommendation for
> using a separate fs just for BackupPC? I certainly wouldn't have
> intuited this issue from a generic mention about careful "planning".
Well, I installed the beta. In said documentation, it clearly states:
"BackupPC uses hardlinks to pool files common to different backups.
Therefore BackupPC's data store (/vault/backstor) must point to a single
file system that supports hardlinks. You cannot split this file system
with multiple mount points or using symbolic links to point a
sub-directory to a different file system (it is ok to use a single
symbolic link at the top-level directory (/vault/backstor) to point the
entire data store somewhere else). You can of course use any kind of
RAID system or logical volume manager that combines the capacity of
multiple disks into a single, larger, file system. Such approaches have
the advantage that the file system can be expanded without having to
copy it."
So forget what I said about reading between the lines -- it was lines
themselves :)
--
Jim Leonard (trixter AT oldskool DOT org) http://www.oldskool.org/
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