BackupPC-users

Re: [BackupPC-users] Problems with hardlink-based backups...

2009-09-01 23:22:25
Subject: Re: [BackupPC-users] Problems with hardlink-based backups...
From: Jim Leonard <trixter AT oldskool DOT org>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Tue, 01 Sep 2009 22:18:07 -0500
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/
Help our electronic games project:           http://www.mobygames.com/
Or check out some trippy MindCandy at     http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/

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