Re: [BackupPC-users] [BackupPC] Cpool and pc quite are big according to size of backuped data and backup config

[Hervé R. <he...@pe...>]

Hello Les,

Les Mikesell wrote:
> Hervé Richard wrote:
>>
>>>
>>> This doesn't sound right if you only have one target.  Does the 
>>> server and the backuppc service run continuously?  Maybe it isn't 
>>> running the backuppc_nightly job that removes the unneeded 
>>> pool/cpool copies.
>> Yes in fact the server and backuppc run continuously and the server 
>> backup files stored on itself.
>> I took care of not backing up backuppc files as mentioned in the 
>> backuppc faq.
By the way I have a rotation between two hard drive every 2 weeks.
This done manually.
Localhost config.pl is stored on each hard drive including the backuppc 
dir as below:
backuppc/
                cpool/
                log/
                pc/
                pool/
                trash/

I think there is bad influence on the way backuppc behave.

>>
>> For backuppc_nightly job:
>> Maybe :-/
>> I don't know how to configure/force backuppc_nightly job to removes 
>> unneeded pool/cpool :-/
>> Maybe it's automatic... check every age of every backuped files and 
>> delete everyone older than configured in:
>
> It is supposed to be automatic and it doesn't pay attention to ages. 
> It should delete anything in the pools with only one link - meaning 
> that all references in the pc directories had already been deleted.
> If you cd to the cpool directory and 'find . -links 1' you shouldn't 
> see very many files.
>
When I execute ' find . -links 1 ' in the cpool directory I see a lot of 
files.
In my configuration, files are stored on a RAID volume mounted on a 
mount point in home directory.
In the Cpool directory I got directories from : 0 to f and same subdirs 
from 0 to f...
For example:
ls cpool -> 0 1 2 3 4 5 6 7 8 9 a b c d e f
and ls cpool/0/ -> same thing as above
ls cpool/0/0/ -> same thing
ls cpool/0/0/0/ -> gives me files with 34 hexa digit.

When I check (with ls -la) files date some are more than 1 year older 
than the other (eg: 2006 and 2007)
>
>> I have this message in every log:
>>
>> Cpool nightly clean removed 0 files of size 0.00GB
>
> It doesn't make sense for the cpool dir to be bigger than the pc 
> directory if you only have one server, since all files that exist in 
> cpool should have links in the pc dir(s) too.  However, du has some 
> quirks in the way it adds up the space, trying not to count linked 
> files multiple times.  Also, the space you reported for cpool and pc 
> should really be the same space since all the files should be 
> hardlinks.  And in any case it shouldn't fill the 80 gigs you said you 
> had.  We must be missing something.  Is everything on the same filesytem?
>
Of cource I think it too...
BackupPC main directory and core system is on the OS file system, the 
data to be backuped up are on an another file system mounted on home/ as 
I said above and the backuped data are on another filesystem on a hard 
drive. Every file system are Ext3.
I didn't used symlink to write path to the backuped files in my config.pl.

Here is an overview of the system architecture:


                                            _____
                                           |          |
                                           |RAID|
Main FS                             |_____|
 ___                                 / 
|      |                               / /home/e-smith/files
|___|                             / 
- OS                           /                                       
           __
- Mounting point <---/---------------------/mnt/hdd1---|__| Backup media 
(HDD 80GB) ->backuppc/
- BackupPC core /opt/backuppc/                                          
                                                               cpool/
                                                                         
                                                                        
           log/
                                                                         
                                                                        
           pc/
                                                                         
                                                                        
           pool/
                                                                         
                                                                        
           trash/

Cheers

Hervé