On Mon, 24 Sep 2007, Dave Markham wrote:
> Guys i've just read this thread and can say im very interested in it. > The first thing is i learned a new term called deduplication which i > didn't know existed. > > Question : I gather Deduplication is using other software. DataDomain i > think i saw mentioned. Where does this fit in with Netbackup and does > the software reside on every client or just a server somewhere? > > Ok, so im trying to kit refresh a backup environment for a customer > which has 2 sites. Production and DR about 200 miles apart. There is a > link between the sites but the customer will probably frown on increased > bandwidth charges to transfer backup data across for DisasterRecovery > purposes. > > Data is probably only 1 TB for the site with perhaps 70% being required > to be transfered daily to offsite media. > > Currently i use tape and i was just speccing a new tape system as i > thought by using disk based backups, and retentions of weekly/monthly > backups lasting say 6 weeks, im going to need a LOT of disk, plus the > bandwidth transfer costs to DR site > > LTO3 tapes are storing 200gb a tape which is pretty good compared to > disk i thought. LTO-3 = 400GiB > > I guess in my set up its a trade off between :- > > Initial cost of disk array vs initial cost of tape library, drives and media > > Time take to backup ( network will be bottle neck here. Still on 100Meg > lan with just 2 DB servers using GigaBit lan to backup server. > > Offsite transfer of tapes daily to offsite location vs Cost of increased > bandwith between sites to transfer backup data. > > > Im now confused what to propose :) > > > > _______________________________________________ > Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu