Hi all, TSM deduplication is effective combined with compression. Without compression, I'm not sure that it worths what it costs (1:2,5 ratio or 65% is what I generally see with mixed data and "standard" retention).
You all should whatch this Tricia Jiang's video on YouTube (from 7:11) : https://www.youtube.com/watch?v=ISWRrkY5RS8 -- Best regards / Cordialement / مع تحياتي Erwann SIMON ----- Mail original ----- De: "PAC Brion Arnaud" <[email protected]> À: [email protected] Envoyé: Vendredi 18 Mars 2016 15:41:06 Objet: [ADSM-L] Real world deduplication rates with TSM 7.1 and container pools Hi All, We are currently testing TSM 7.1 deduplication feature, in conjunction with container based storage pools. So far, my test TSM instances, installed with such a setup are reporting dedup percentage of 45 %, means dedup factor around 1.81, using a sample of clients which are representative of our production environment. This is unfortunately pretty far from what was promised by IBM (dedup factor of 4) ... I'm wondering if anybody making use of container based storage pools and deduplication would be sharing his deduplication factor, so that I could have a better appreciation of real world figures. If you would be so kind to share your information (possibly with the kind of backed-up data i.e. VM, DB, NAS, Exchange, and retention values ...) I would be very grateful ! Thanks in advance for appreciated feedback. Cheers. Arnaud ****************************************************************************************************************************** Backup and Recovery Systems Administrator Panalpina Management Ltd., Basle, Switzerland, CIT Department Viadukstrasse 42, P.O. Box 4002 Basel/CH Phone: +41 (61) 226 11 11, FAX: +41 (61) 226 17 01 Direct: +41 (61) 226 19 78 e-mail: [email protected]<mailto:[email protected]> This electronic message transmission contains information from Panalpina and is confidential or privileged. This information is intended only for the person (s) named above. If you are not the intended recipient, any disclosure, copying, distribution or use or any other action based on the contents of this information is strictly prohibited. If you receive this electronic transmission in error, please notify the sender by e-mail, telephone or fax at the numbers listed above. Thank you. ******************************************************************************************************************************
