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? 

Regards,
Aravind 

----------------------------------------------------------------------------------------------------------------------------------
-----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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------------------------------------------------------------------------------
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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BackupPC-users AT lists.sourceforge DOT net
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