What kind of Internet connection is it? Since you say, 8 Mbps, I'm guessing either a DSL or Cable modem connection; these are the only 8 Mbps Internet connections I'm aware of.
Those connections are asymmetric. The 8 Mbps would only apply TO your system. The upload speed is typically much slower; in fact, 3 Mbps sounds like you would be getting a very good speed; it can often be as slow as 1 Mbps or less. If you have a different type of Internet connection, obviously that does not apply. Marc DeTrano wrote: > I am having a problem where Bacula backups of Windows machines are > running slow, only when saving to a storage daemon across the internet. > Here's what I have so far: > > -Bacula Director and Local SD, 2.2.8, running on Mandriva Linux 2008.1 > -Remote SD 2.4.2, running on RHEL 4 > -Windows FD, 2.4.3, running on Windows Server 2003 R2 > -Remote connection is an 8Mbps line. > > The trouble is, the backups of Windows machines to the remote storage > never exceed about 3Mbps. > > -I tried the exact same backup job, running to local storage, and it > zipped right along (peaking at about 30 Mbps or so). > -Remote backups of Linux machines nearly reach the full 8Mbps available. > -Disabling/Enabling VSS did not make a difference. > -Disabling/Enabling Compression did not make a difference. > -I have tried various settings for Maximum Network Buffer Size, setting > the same for both the FD and the SD, or also trying with just the FD > - At 65535, the remote backups experience a lot of problems > (eventually die). > - At 32768, the remote backups are stable, just with this 3Mbps limit. > - Above 32768, same limit > - 16000, and they run slower. > > -FTP file transfers from the Windows machines to the same remote server > with the SD can also reach the full 8Mbps. > > -I have not made any changes to the GlobalMaxTcpWindowSize registry > entry (not yet willing to risk altering other services on the systems), > but I checked and this is currently at 1677216. > > -This problem has been present since before some recent upgrades to the > various components (was at the 1.38 level, I did a lot of upgrading to > try to resolve this issue). > > All I know is that everything is pointing to the Bacula-Windows-Remote > combination as having the problem. I would appreciate any advice on > some other settings I can try, and I am certainly willing to experiment > or provide what additional information I can to help out. > > > Thanks for your help, and for a really slick network backup product. > > Marc > Gridshield, S.A. > > > > > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
