Deduplucation is a common feature in backup systems. If you have the same file (for good or bad reasons) in several differentbpkaces or even on different servers, then why back up the same file 10 or 20 times? Back it up once and make pointers to it 10 or 20 times.
On our VMware Data Recovery system, this deduplication (and some very slight compression) cuts the backup storage size to about 1/4 the size of the raw data. Chris Sent from my iPhone On Oct 25, 2009, at 8:25 AM, "Howard White" <hwh...@vcch.com> wrote: > > The message is brought to you by the fact that I am not completely > awake > yet ;) > > Sorting through my morning spam and see a ditty from Network World > announcing a new Deduplication Appliance. Really? Normally I delete > these things faster than... But "deduplication" caught my eye. Oh, > it > has a Wikipedia entry and the product line being promoted _starts_ at > $65,000.00 so it has to be important. > > The term (I won't even call it a word) "Deduplication" has a humorous > ring. Department of redundancy department in five syllables. I can > imagine that corporate SAN end up with TBs of the same porn videos > stored multiple times... hmmmm, off to sourceforge to see if there > are any bots to work through my file servers and identify the multiple > copies of pictures (of places and people fully clothed, thank you) > that > I know I've thrown willy-nilly. > > So one deduplicates, then the system crashes and they lose the stored > original... Captain Murphy's nephew is on the design team. > > Howard > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to nlug-talk@googlegroups.com To unsubscribe from this group, send email to nlug-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en -~----------~----~----~----~------~----~------~--~---
