Zitat von Paul Van Wambeke <paul.vanwambeke AT br.fgov DOT be>:

> On 5/09/2012 02:52, James Harper wrote:
>>>       Hi
>>>
>>> I have Bacula 5.01 Director installed on a Linux Ubuntu 10.04 server, and a
>>> Bacula 5.2.10 Client (Bacula-fd) running on a Windows Server 2008
>>> R2 SP1 server, with Hyper-V role installed. Purpose is her to  
>>> backup the host
>>> server, not the virtual machines.
>>>
>>> Initially the backup transfer rate was extremely slow (kbytes/sec).
>>> Changing the Network adapter (Broadcom NetXstreme 5714) settings to
>>> Large end Offload (LSO) = off as suggested in some posts increased the
>>> transfer rate to 1MB/sec, which is still 10 to 80 times slower  
>>> than the transfer
>>> rates I have with other servers running Linux or Windows 7.  
>>> Transferring a file
>>> 'by hand' over the net runs at 80 MB/sec ...So I suspect a problem with
>>> Bacula-fd.
>>>
>>> Any idea how to configure the server so that I can get decent  
>>> backup transfer
>>> speeds ? I can't imagine these servers can't be managed by Bacula.
>>>
>> First use something like iperf to make sure that the problem is not  
>> bacula. Test all possible combinations of send/receive for the  
>> following:
>>
>> . host server
>> . bacula sd server
>> . another pc/server that is separate (can be linux or windows)
>>
>> That should give you concrete evidence as to whether the problem is  
>> related to bacula. Hyper-V network can be terribly difficult in  
>> some cases.
>>
>> James
>>
>>
>>
>>
>> -----
>> Aucun virus trouve dans ce message.
>> Analyse effectuee par AVG - www.avg.fr
>> Version: 2012.0.2197 / Base de donnees virale: 2437/5249 - Date: 04/09/2012
>>
>>
>>
>
> Thanks James for the suggestion.
>
> I have made the performance tests : copying a file from the host server
> to another Windows 7 PC was done at 80MBytes/sec.
>
> Using iperf I measured following performances :
>
> bacula-fd = the windows server 2008 R2 host, 1Gb/sec NIC
> bacula-dir = a linux ubuntu 10.04 PC, 1 100Mb/sec NIC
> bacula-sd = a linux ubuntu 10.04 server, 1 Gbite/sec NIC
>
>
> iperf server            iperf client                Performance
> ----------------            --------------- --------------------
>
> bacula-fd                bacula-dir                10 MBytes/sec
> bacula-fd                bacula-sd                111 MBytes/sec
> bacula-dir                bacula-fd                10 MBytes/sec
> bacula-sd                bacula-fd                 26 MBytes/sec
>
> So normally the bacula client should be able to write to the bacula
> storage at 26MBytes/sec ?
>

That's a little bit asymetric, no? If you got 111MBytes/sec in one  
direction and 26MBytes/sec the other way around i would suspect  
something like duplex mismatch or the like. Have you check if your  
switch and the nic agree on speed and duplex settings to use?

Regards

Andreas



------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users