Hi Mark, from what you've wrote, I assumed you have 2 seperated dedupe pool. which if you want to get the real deduplication, it will need 1 acting as a media server, and the others as a client so the data will be run through the same deduplication media and as a 1 global deduplication.
Apologize if I'm giving the wrong assumption. -Martin- On Tue, Jul 13, 2010 at 12:13 AM, Mark Glazerman < mark.glazer...@spartech.com> wrote: > We have been playing with the new dedup option in a small test > environment pushing data from 2 clients through a windows 2008 media server > to a 2TB lun presented to that same server. We have things setup to dedup > at the media server, not the client and have each of these 2 clients in > their own policy. > > > > After the initial full backup of these clients, netbackup reported 98-99% > deduplication on subsequent fulls we ran which is fantastic. However, even > with these numbers inside NBU, the amount of storage being used seems > excessive (currently over 80%). Support are telling me that it can take > several weeks for the math behind the numbers to actually start accurately > reporting the compression figures but I guess I don’t understand how 2 > clients which total about 850GB and have a minimal change rate, when > reporting 98 or 99% compression inside NBU, can be using so much space. > > > > Does anyone else have any experience with the dedup option and did you see > similar disparity after your initial implementation ? > > > > As a point of reference, when setting up the disk pool, we took all the > defaults inside the wizard. > > > > Thanks in advance > > > > *Mark Glazerman* > > *Enterprise Storage Administrator* > > *Spartech Corporation* > > Desk: 314-889-8282 > > Fax: 314-854-8282 > > Cell: 618-520-3401 > > *mark.glazer...@spartech.com* <mark.glazer...@spartech.com> > > *http://www.spartech.com* <http://www.spartech.com/> > > P please don't print this e-mail unless you really need to > > This e-mail and any files transmitted with it are confidential, are > intended solely for the use of the addressee, and may be legally privileged. > If you have received this email in error please notify the sender > immediately, and do not copy or forward it. > > > > _______________________________________________ > Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > >
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