Haha, Yes Paul, when you have made life so easy that DBA's decide they can make backups without letting the storage group know, it is not so easy.
Kind Regards, Clem Kruger -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Keating Sent: 24 September 2007 18:44 PM To: VERITAS-BU@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Script to label expired tapes in a VTL It's not as complicated as you make it sound. Like tape, you need to keep some overhead in free disk. If you want to maximize the contiguous free disk available, then you would bplable tapes as they expire and go back to scratch. As you write to a scratch tape, the space that cart previously occupied is released, so as you occupy more space with that tape, the data previously on that tape is again available for use...the background defragger will reclaim that space for a subsequent backup. I'd like to know how this problem goes away with a de-duping "disk as disk" target. If you write an image to a "disk-as-disk" target, and later the netbackup image expires, how are you "ahead" of the same position you'd be in with a VTL when a tape expires? Paul -- > -----Original Message----- > From: Clem Kruger [mailto:[EMAIL PROTECTED] > Sent: September 24, 2007 12:20 PM > To: Kevin Whittaker; Paul Keating; Curtis Preston; > VERITAS-BU@mailman.eng.auburn.edu > Subject: RE: [Veritas-bu] Script to label expired tapes in a VTL > > > Hi All, > > This is exactly right. The space is not available! > > Let us assume that you need to write an urgent backup to a > different set of tapes. Although there are tapes that have > expired, you may not have space on the DISK to write to those > tapes, your backup will fail. Now go back to the directors > and tell them you now need more space because it has become > so easy to create new tape drives as well as new tapes. > > The administration becomes extremely difficult if you are not > using Vaulting. Especially in large environments where you > backup 10's of TB every night. > > It is not that I have anything against VTL's, it is my > contention that if you want disk to disk, rather do that. It > is easier to manage. Why be bothered still managing "TAPE" > albeit virtual? > > Kind Regards, > Clem Kruger ==================================================================================== La version française suit le texte anglais. ------------------------------------------------------------------------------------ This email may contain privileged and/or confidential information, and the Bank of Canada does not waive any related rights. Any distribution, use, or copying of this email or the information it contains by other than the intended recipient is unauthorized. If you received this email in error please delete it immediately from your system and notify the sender promptly by email that you have done so. ------------------------------------------------------------------------------------ Le présent courriel peut contenir de l'information privilégiée ou confidentielle. La Banque du Canada ne renonce pas aux droits qui s'y rapportent. Toute diffusion, utilisation ou copie de ce courriel ou des renseignements qu'il contient par une personne autre que le ou les destinataires désignés est interdite. Si vous recevez ce courriel par erreur, veuillez le supprimer immédiatement et envoyer sans délai à l'expéditeur un message électronique pour l'aviser que vous avez éliminé de votre ordinateur toute copie du courriel reçu. _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu