Aravind R wrote at about 05:01:21 +0000 on Thursday, March 20, 2014:
> Hi Les,
>
> Thanks for your quick response.
>
> I have tried to check each and every directory separately.
>
> cpool]# du -csh 0
> 28G 0
> 28G total
> cpool]# du -csh 1
> 40G 1
> 40G total
> cpool]# du -csh 2
> 28G 2
> 28G total
>
> Seems like each directory contains GB's of datas. Will be there any
> issue if I delete these files?
You thanked Les for his response, but did you bother reading a word
that he wrote???? He answered your question very clearly. Even if you
hadn't read his response, do you really think that BackupPC is such a
brain dead program that it would store hundreds of gigabytes of
needless information that has eluded the other thousands of users until you
brilliantly "discovered" this wasted space?
> ----------------------------------------------------------------------------------------------------------------------------------
> -----Original Message-----
> From: Les Mikesell [mailto:lesmikesell AT gmail DOT com]
> Sent: Thursday, March 20, 2014 10:20 AM
> To: General list for user discussion, questions and support
> Subject: Re: [BackupPC-users] cpool directory is using more than 500GB space.
>
> On Wed, Mar 19, 2014 at 11:08 PM, Aravind R <aravind.r AT nocme DOT com>
> wrote:
> >
> > I am using BackupPC and I am very satisfied with it. Currently my
> > backup server is using 91%(1.7T/2.0T) of the total disk space.
> >
>
> > I could see a directory inside /backuppc/filesystem is using more than
> > 500GB. However the filesystem backups are stored inside
> > /backuppc/filesystem/pc I am not sure what contents are storing inside
> > cpool directory. The directory structure is as follows.
> >
> > drwxr-x--- 18 backuppc backuppc 4096 Dec 27 2012 0
> >
> >[...]
>
> > Can anyone help me to understand this?
>
> The backups are stored under each pc/ directory and also hardlinked to a
> name under cpool that is computed as a hash of the contents (and distributed
> down a tree of subdirectories because a large number of
> files in a single directory has performance issues). The hashed
> names are used to allow matching files with identical content and
> replacing them with more links. Hard links are just different names
> for the same copy of data and don't take additional space, although 'du'
> will show the space of each if you look at the directories separately.
>
> --
> Les Mikesell
> lesmikesell AT gmail DOT com
>
> ------------------------------------------------------------------------------
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> "Graph Databases" is the definitive new guide to graph databases and their
> applications. Written by three acclaimed leaders in the field,
> this first edition is now available. Download your free book today!
> http://p.sf.net/sfu/13534_NeoTech
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------------------------------------------------------------------------------
Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/13534_NeoTech
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