Hi, It would be interesting to learn what real business requirements lead your manager to this double-retention requirements, what danger or costs will arise if you use the longer retention for onsite and offsite pools.
If your manager is really a manager he will thing in this terms (dollars,risk,service,..) and either will be able to explain to you (an you to us) what the real requirements are or in the lack of ability to explain he will figure out he was wrong. I do not agree with all those postings who would force your manager to read the manuals of TSM. I want managers have defined business objectives and not technical solutions. Juraj -----Urspr�ngliche Nachricht----- Von: Allen Barth [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 12. M�rz 2003 21:22 An: [EMAIL PROTECTED] Betreff: Re: Creating two tape copies offsite with each has Different Retention Ah, this again. Your mananger needs to be taken out back and beaten until agreeing to both read ITSM concepts manual and be subjected to a quiz. :-O) TSM manages DATA via mgmtclass parameters you specify. IE, x number versions kept for so many days, etc. and into which primary pool should the data flow. The storage pool heirarchy is managed directly by migration, reclaim and reuse parameters. The logical management of data versus physical management of media don't have any direct tie. There is nothing is the storage pool hierarchy which says 'oh BTW, everyting in this container (tape) is worthless (can be deleted) after x amount of time'. Expiration processing is what marks areas on tape as 'unused' (expired inactive files) and adjusts percent used. Reclamation looks at percent used and selects tapes that are candidates. Sorry for the tounge-in-cheek response, but this is THE single most difficult concept for management/old school backup pro's to understand. So the answer is you can't do what he wants. Edgardo Moso <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> 03/12/03 12:19 PM Please respond to "ADSM: Dist Stor Manager" To: [EMAIL PROTECTED] cc: Subject: Creating two tape copies offsite with each has Different Retention Hello Fellow TSMERs, This is quite a wild idea but I just would like to solicit your opinions if how could I satisfy the the requiremetn asked by manager. He wants in one backup instance to create two copies for the two copy storage pools one for onsite and one for OFFSITE. I know this can be done in TSM 5.1. Aside from this he added that each of this shoudl have different retentions. Say, onsite is 15 days retention and offsite is only 7 days. I tried reading the technical manual of TSM 5.1 but I think it's impossible to do this unless I will apply the concept of backup set. I don't think the new features of TSM 5.1 inlcudes this. What do you think, gurus? If I used the backupset, does anybody of you have experience on this? How does the backupset performance behaves in the new TSM 5.1? Any ideas are greatly appreciated. Thanks, Edgardo Moso
