Re: [Bacula-users] question about bacula job speed

[ce]

for the bacula backups on the old bacula server ( for backups of a windows
client ), I never noticed that long bacula jobs for incremental and
differential ones.

on the new bacula server for the backups of one of the folder:

Elapsed timeLevelBytesFilesSpeed

13:45:29   Differential 2.17 MB 42 45.92 B/s 0.35

on the new bacula server for the backups of another folder on the same
client:
Elapsed timeLevelBytesFilesSpeed

03:00:03 Differential 932.23 MB 1.648 88.36 KB/s

how can I find out why there is such a difference? the second folder backup
has even more files for backup as you see above but it took less.
NOTE:

for the first folder: 22 G out of 500 G  free space
for the second folder 400 G out of 700 free space?
not sure if having more free space for the client folders, will affect the
speed of backup?

any help will be appreciated!

On Mon, May 13, 2019 at 12:58 PM Christian Lehmann 
wrote:

> Hi and welcome!
>
>
>
> Most of the time, the limiting factor for an incremental backup is the
> analysis of all files by the file daemon on the client.
>
> So, only some small changes/files need to be backed-up, but bacula can
> only know this by analyse one file after another.
>
> So it can well be that an incremental backup can need as much time as a
> full backup, presumed, the transfer rate for your backup device and/or to
> your server is not the limiting factor.
>
>
>
> However, which the information you provided, it is difficult to give you a
> black “Yes or No”-answer.
>
>
>
> Best,
>
>
>
> Christian
>
>
>
> *Von:* ce 
> *Gesendet:* Montag, 13. Mai 2019 20:30
> *An:* bacula-users@lists.sourceforge.net
> *Betreff:* [Bacula-users] question about bacula job speed
>
>
>
> Hi everyone,
>
> Is that normal that incremental bacula job ( just to backup  a few
> megabytes) takes 9 or 10 hours? assuming there is no performance or any
> issue on the servers and clients, only encryption algorithm has changed
> recently!
>
>
>
>
>
> Thanks,
>
>
>
>
>
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Re: [Bacula-users] question about bacula job speed

[Christian Lehmann]

Hi and welcome!

 

Most of the time, the limiting factor for an incremental backup is the analysis 
of all files by the file daemon on the client. 

So, only some small changes/files need to be backed-up, but bacula can only 
know this by analyse one file after another.

So it can well be that an incremental backup can need as much time as a full 
backup, presumed, the transfer rate for your backup device and/or to your 
server is not the limiting factor.

 

However, which the information you provided, it is difficult to give you a 
black “Yes or No”-answer.

 

Best,

 

Christian

 

Von: ce  
Gesendet: Montag, 13. Mai 2019 20:30
An: bacula-users@lists.sourceforge.net
Betreff: [Bacula-users] question about bacula job speed

 

Hi everyone,

Is that normal that incremental bacula job ( just to backup  a few megabytes) 
takes 9 or 10 hours? assuming there is no performance or any issue on the 
servers and clients, only encryption algorithm has changed recently!

 

 

Thanks,

 

 

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[Bacula-users] question about bacula job speed

[ce]

Hi everyone,
Is that normal that incremental bacula job ( just to backup  a few
megabytes) takes 9 or 10 hours? assuming there is no performance or any
issue on the servers and clients, only encryption algorithm has changed
recently!


Thanks,
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