Re: [Bacula-users] disk spooling and despooling: concurrency

2007-04-02 Thread Ryan Novosielski
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Alan Brown wrote: > On Sat, 24 Mar 2007, Marc Cuypers wrote: > >> I'm asking this because backups without spooling are faster than those >> with spooling. Is this normal? > > Yes - for a single job > > If you have multiple concurrent jobs running t

Re: [Bacula-users] disk spooling and despooling: concurrency

2007-03-27 Thread Arno Lehmann
Hi, On 3/25/2007 5:39 PM, Marc Cuypers wrote: > Hi Arno, > > Thanks for answering. > > Arno Lehmann wrote: >> Hi, >> >> On 3/24/2007 9:16 PM, Marc Cuypers wrote: >>> Hi, >>> >>> I'm still using bacula 1.38.5. >>> >>> To prevent shoe shining (writing, rewinding, writing again) with a tape >>> dri

Re: [Bacula-users] disk spooling and despooling: concurrency

2007-03-26 Thread Alan Brown
On Sat, 24 Mar 2007, Marc Cuypers wrote: > I'm asking this because backups without spooling are faster than those > with spooling. Is this normal? Yes - for a single job If you have multiple concurrent jobs running the individual backups will run as slow as a single backup, but because they wi

Re: [Bacula-users] disk spooling and despooling: concurrency

2007-03-25 Thread Marc Cuypers
Hi Arno, Thanks for answering. Arno Lehmann wrote: > Hi, > > On 3/24/2007 9:16 PM, Marc Cuypers wrote: >> Hi, >> >> I'm still using bacula 1.38.5. >> >> To prevent shoe shining (writing, rewinding, writing again) with a tape >> drive bacula uses spooling. > ... >> The spooling to the file and th

Re: [Bacula-users] disk spooling and despooling: concurrency

2007-03-24 Thread Arno Lehmann
Hi, On 3/24/2007 9:16 PM, Marc Cuypers wrote: > Hi, > > I'm still using bacula 1.38.5. > > To prevent shoe shining (writing, rewinding, writing again) with a tape > drive bacula uses spooling. ... > The spooling to the file and the writing to tape is not concurrent. Is > there a reason for this

[Bacula-users] disk spooling and despooling: concurrency

2007-03-24 Thread Marc Cuypers
Hi, I'm still using bacula 1.38.5. To prevent shoe shining (writing, rewinding, writing again) with a tape drive bacula uses spooling. When using spooling, the data is first spooled to local disk file, then it is written to tape (despooling). When there is more data to backup then the maximum s