Zitat von Paul Van Wambeke <paul.vanwamb...@br.fgov.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@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
