This is what we do here - I have BE2010r2 with dedup and have my backup controller attached to a 10TB array built on a Dell MD1000. It's pretty quick and does a great job of dedup - I've eliminated incrementals from my schedule and only run fulls now and let dedup handle the overlap. Beware the RAM requirements - BE2010r2's min recommended is 8GB with an additional 1GB/tb of backed up data for the deduplication option IIRC.
---- Jack Kramer Computer Systems Specialist University Relations, Michigan State University w: 517-884-1231 / c: 248-635-4955 On 2/4/11 2:27 PM, "Paul Hutchings" <[email protected]> wrote: >How come you're looking at NAS rather than just shovelling a few 2tb >drives in your backup server? > >I'm looking into doing something very similar myself (we use >Commvault/Simpana) and the rule of thumb on disk space, assuming you're >not paying per Tb stored, is disk is cheap, and with dedupe rates what >they are for average data, you'd be mad not to shovel in as much as you >can afford and leave tape as the very last resort. > >-----Original Message----- >From: Roger Wright [mailto:[email protected]] >Sent: 04 February 2011 18:08 >To: NT System Admin Issues >Subject: Dedupe Thoughts? > >I'm looking at some options for a "poor man's" deduplication system for >backups. A Data Domain or Exagrid solution would be preferred but not >feasible at this time. > >We're currently backing up a little over 4 TB to LTO3 tape and have >outgrown our backup window, library capacity, and RTO. > >I'm thinking of using BE 2010's Deduplication option for the engine and >something like the Synology DS1511+ with 5 - 2GB drives for 8 TB of >storage (w/RAID5 or just a hot spare). Then I could offload to tape for >off-site storage or script replication to another unit at a branch >office. > >Any best practices thoughts for sizing the storage for the deduped data? >Does it just depend on the ratio achieved and the storage and the number >of backup sets retained? One nice thing about the Synology system is it >can be easily expanded to up to 15 disks. > >A Data Domain or Exagrid solution would be preferred but not feasible at >this time. > > >Roger Wright >___ > >"The internet is a great way to get on the net." - Bob Dole > >~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ ><http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > >--- >To manage subscriptions click here: >http://lyris.sunbelt-software.com/read/my_forums/ >or send an email to [email protected] >with the body: unsubscribe ntsysadmin > > >-- >MIRA Ltd > >Watling Street, Nuneaton, Warwickshire, CV10 0TU, England >Registered in England and Wales No. 402570 >VAT Registration GB 100 1464 84 > >The contents of this e-mail are confidential and are solely for the use >of the intended recipient. If you receive this e-mail in error, please >delete it and notify us either by e-mail, telephone or fax. You should >not copy, forward or otherwise disclose the content of the e-mail as this >is prohibited. > >~ Finally, powerful endpoint security that ISN'T a resource hog! ~ >~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > >--- >To manage subscriptions click here: >http://lyris.sunbelt-software.com/read/my_forums/ >or send an email to [email protected] >with the body: unsubscribe ntsysadmin > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
