BackupPC-users

Re: [BackupPC-users] XP rsync SLOW and fails

2009-08-27 18:45:30
Subject: Re: [BackupPC-users] XP rsync SLOW and fails
From: "Brian Bettger" <bbettger AT alfseed DOT com>
To: <backuppc-users AT lists.sourceforge DOT net>
Date: Thu, 27 Aug 2009 15:38:41 -0700
Matthias,
 
Thanks for the help. Yes my boss DOES have large active .pst files, several 
(2~3). Each are at or above 1.5 GB in size. Total capacity of the backup is 
around 25GB. I've excluded many files and folders although I would like to 
include the .pst files as she needs the history these represent. Any ideas on 
how to increase the throughput? 100 MB connection on the LAN, when I get the 
server from test mode to production the connection will be 1 GB after moving to 
the server room. Will increased ethernet bandwidth decrease backup speed 
significantly?
 
Thank you,
Brian
-- 

Brian Bettger
Systems Analyst
(360) 336-9727


Alf Christianson Seed Company

>>> On 8/23/09 at 11:19 PM, Matthias Meyer <matthias.meyer AT gmx DOT li> wrote:
Brian Bettger wrote:

> Hello all,
>  
> Installed BackupPC version 3.1.0 a few months ago. After creating all
> users on the server using one users profile as a template for the rest, I
> would think they'd all behave the same. Tested the rsync on all the
> laptops initially and had pretty good results.
> 
> About a week later my bosses laptop, scheduled for an incremental, began
> backing up at 10:00 am and was still running when she shutdown her laptop
> at 7:00 pm. Obviously the backup failed. The previous days incrementals
> lasted only 45 minutes or so. Pretty much all default settings as seen at
> the Web GUI config for each user.
> 
>>>From that last incremental onward the backups begin and just keep running
>>until the user powers off. This is occurring on at least three laptops
>>now.
> 
> It seems like rsync begins very strong as the CPU utilization for that
> users process runs up to 25% on the Suse 10 server, then after about 30~45
> minutes it gradually throttles back almost to zero.
> 
> I've tried excludes of the pagefile, ntuser.dat, system volume
> information, etc with no change. Updated to a newer rsync than what came
> with cygwin-rsyncd-2.6.8_0.zip on my bosses laptop...
> 
> No SSH, Trusted network, just running on port 873, firewall has the port
> opened via the netsh firewall commands by running service.bat from the
> package mentioned above.
> 
> It almost seems like rsync.exe is stalling on the client laptops. It's
> process shows little CPU utilization, naturally, when time runs onward it
> decreases to nearly zero.
>  
> Here is a copy from the log file of a Full backup that SHOULD take no more
> than 3 hours, based on previous successful full backups of this laptop:
> 
> 2009-08-03 06:00:03 no ping response
> 2009-08-03 12:00:00 full backup started for directory cDrive
> 2009-08-03 19:00:31 Got fatal error during xfer (Child exited prematurely)
> 2009-08-03 19:00:39 Backup aborted (lost network connection during backup)
> 2009-08-03 20:00:03 no ping response
> 
> At 19:00 hours my boss finally shutdown for the night.
> 
> I could REALLY use some help and or pointers to get this back to the peppy
> speed it once used to have.
> 
> Your thoughts and suggestions?

Maybee your boss had a lot of new (big) files?
Try to activate logging (add -vvv to the RsyncArgs) and check if always the
same file is the last before abort.
I have had a similiar problem with a very big outlook.pst in combination
with a network interruption.

br
Matthias
-- 
Don't Panic





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