Thank Richard, But what is the algorythm used by TSM ?
Pierre > -----Message d'origine----- > De : ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] De > la part de Richard Sims > Envoyé : jeudi 23 août 2007 14:51 > À : ADSM-L@VM.MARIST.EDU > Objet : Re: [ADSM-L] How does a library choose a drive? > > On Aug 23, 2007, at 5:36 AM, CAYE PIERRE wrote: > > > BUT when doing recurent task, as backup and so, TSM SEEMS to act as > > Richard explain, asking the OS for a drive, so it's the OS > which make > > the choice, based on it own algorythm. > > TSM performs I/O through operating systems services, but that > is not to say that the operating system makes choices. In > the case of Unix, TSM performs an ioctl() system call with an > appropriate "mount" > directive to cause the mount of a specific tape on a specific drive. > This is deterministic, with TSM choosing the drive to use. > > Richard Sims >
