Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-25 Thread mark . bergman
In the message dated: Tue, 24 Apr 2007 22:57:34 +0200, The pithy ruminations from Sysadmin Worldsoft on were: => Hello John, => => John Drescher a écrit : => => > You did not give any details of your systems. I assume you have a => > gigabit network between all the involved systems. What data

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread mark . bergman
In the message dated: Tue, 24 Apr 2007 22:57:34 +0200, The pithy ruminations from Sysadmin Worldsoft on were: Hello John, > John Drescher a icrit : > > You did not give any details of your systems. I assume you have a > gigabit network between all the involved systems. What database are > yo

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread Michael Nelson
Michael Nelson wrote: > I find that the overall throughput for my gigabit-connected LTO-3 > jukebox seems to depend more on the makeup of the files being backed up > than anything. > Sorry, but that is confusing language, and could be misinterpreted easily. What I should have said is that th

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread Michael Nelson
John Drescher wrote: > Are you using spooling on the backup with 7 million files? Yes, John... all my jobs are spooled to disc then to tape. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. --

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread John Drescher
> It's VERY fast on backups where it is doing large to medium files, and > VERY slow on backups where it has to back up millions of tiny files. I > have three webservers I back up that fit the "millions of small files" > definition, and a full backup of each of them takes about 3 hours > apiece.

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread John Drescher
> I backup a directory mounted on the same server which the library is > connected. > I assume you mean the raid array that contains the data is on the server and it is not nfs mounted... > > [Directory on NAS Powervault 220S<> Raid Controller] <-> Server <-> > [SCSI Adaptec 39160 <> Tape Library

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread Michael Nelson
Sysadmin Worldsoft wrote: > I try to backup 193GB with bacula 2.0.3 on a tape library Powervault > 124T with LTO3. > > The backup take 7 hours to terminate. The specification for PV 124T is > "Supports maximum native transfer rates of 288GB/hr (LTO-3)" > > Any idea for this problem ? > I find

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread Sysadmin Worldsoft
Hello John, John Drescher a écrit : > You did not give any details of your systems. I assume you have a > gigabit network between all the involved systems. What database are > you using? Did you properly set up the indexes? Are you using > spooling? > I backup a directory mounted on the same se

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread Gordon McLellan
maximum speeds on a tape drive are kinda like maximum capacity on your broadband connection. what's advertised and what you'll get are two different things. I have that same DELL drive, and I'm seeing about 60gb/hour, which I feel is reasonable for LTO3 with no compression... your numbers aren't

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread John Drescher
On 4/24/07, Sysadmin Worldsoft <[EMAIL PROTECTED]> wrote: > Hi Folks, > > I try to backup 193GB with bacula 2.0.3 on a tape library Powervault > 124T with LTO3. > > The backup take 7 hours to terminate. The specification for PV 124T is > "Supports maximum native transfer rates of 288GB/hr (LTO-3)"

Re: [Bacula-users] Speed problem with Powervault 124T

2007-04-24 Thread Michael Proto
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Using 100baseT? This document might help explain things: http://www.dell.com/content/topics/global.aspx/power/en/ps4q02_wolfram?c=us&cs=555&l=en&s=biz - -Proto Sysadmin Worldsoft wrote: > Hi Folks, > > I try to backup 193GB with bacula 2.0.3 on a