As with all questions like this, the answer is "it depends". It depends on the make-up of your data (# of DB full dumps, % of DB dumps to filesystem data, % of change on the client, etc) It depends on the vendor of DeDupe you are using.
FWIW, I am about to replace a 100TB of LTO tape with a DataDomain 560 dedupe box starting next week. Once the migration from tape to disk is complete, I will be reporting what I saw in my environment. The DD folks are saying that the worst case scenario will be a 7X reduction (i.e. 70TB of data squeezed into a 10TB DataDomain appliance). We shall see. Ben -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of lamont Sent: Wednesday, January 23, 2008 1:29 AM To: [email protected] Subject: [ADSM-L] Data Deduplication Hi, What would likely be the de-dupe ratio if tsm clients do archive processing daily (file level, no tdps) with encryption enabled? Thanks. +---------------------------------------------------------------------- |This was sent by [EMAIL PROTECTED] via Backup Central. |Forward SPAM to [EMAIL PROTECTED] +---------------------------------------------------------------------- The Blue Cross of Idaho Email Firewall Server made the following annotations: ------------------------------------------------------------------------------ *Confidentiality Notice: This E-Mail is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you have received this communication in error, please do not distribute, and delete the original message. Thank you for your compliance. You may contact us at: Blue Cross of Idaho 3000 E. Pine Ave. Meridian, Idaho 83642 1.208.345.4550 ==============================================================================
