Steve, we perform weekly full backups and nightly incremental backups to tape (LTO5). We are using version 6.4 of the baclient and TSM for VE, which allows incremental forever--we do not use that option. The highest daily change I see during the nightly incremental backups is about 25%. The average is around 8-10%.
Ray Storer NIBCO INC. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Steven Harris Sent: Wednesday, May 15, 2013 5:20 AM To: [email protected] Subject: [ADSM-L] TSM for VE sizing vs standard incremental forever Hi All I've been asked to do some ballpark sizing for a major rework of a TSM environment. Clients are linux and Windows under Vmware This customer has been using standard BA client backups up until now, ie incremental forever, and the new env will be TSM for VE with the backend being tape rather than disk so no dedup possible. Given that TSM for VE uses some funky differential backup technology on the changed blocks, how much data does your typical VE installation backup per day per protected TB? Anyone with real world data out there? Sorry it is such an open question but anything you can give me is better than a stab inthe dark. Regards Steve Steven Harris TSM Admin Canberra Australia ________________________________ CONFIDENTIALITY NOTICE: This email and any attachments are for the exclusive and confidential use of the intended recipient. If you are not the intended recipient, please do not read, distribute or take action in reliance upon this message. If you have received this in error, please notify us immediately by return email and promptly delete this message and its attachments from your computer system. We do not waive attorney-client or work product privilege by the transmission of this message.
