So data is deduplicated in a disk storage pool but when it is written to tape the entire reconstructed file is written out? Is this the same for file device classes?
-----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Andrew Carlson Sent: Tuesday, June 21, 2011 8:22 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: Deduplication and Collocation Tape pools are not de-duped, so that is not a consideration. On Tue, Jun 21, 2011 at 13:17, Mark Mooney <mmoo...@aisconsulting.net> wrote: > Hello, > > I had a student ask me today "What happens if you have collocation turned on > for a storage pool that you are deduplicating?" I did not know what to > answer because in my mind I thought "well, if the data is collocated then I > need to have a copy of that data on that client's tape, otherwise I am going > to be mounting another client's tape to get back a de-duped piece of data > which would negate the collocation" > > I'm looking at the redbooks for this but I only see 6.1 and in 6.2 > they added client side dedup as well (which I also have questions > about) > > Can anyone shed some light on this? > > Thanks! > Mooney > > -- Andy Carlson --------------------------------------------------------------------------- Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, The feeling of seeing the red box with the item you want in it:Priceless.