Author: "Michaels, Keith R" <keith.r.michaels AT pss.boeing DOT com>
Date: Tue, 8 Apr 2008 14:44:02 -0700
In a traditional Netbackup shop with monthly fulls and daily incrementals, there could be 12 copies of files over the course of a year. There are various ways to eliminate duplication but the first s
Author: "Jeff Lightner" <jlightner AT water DOT com>
Date: Tue, 8 Apr 2008 17:57:07 -0400
I don't know a way to measure how much is "redundant" easily. Maybe the much vaunted Aptare would have that - I'll wait for their fan club to comment on that. :-) However, the fact that deduplication
Author: "Jim Horalek" <jimh AT federaledge DOT com>
Date: Tue, 8 Apr 2008 15:16:40 -0700
Lets not call it compression. Compression is still 2x typically. I can claim 500x or 1000x deduplication if my data "rarely" changes. --Original Message-- From: veritas-bu-bounces AT mailman.eng.aubu
On Tue, Apr 8, 2008 at 5:57 PM, Jeff Lightner <jlightner AT water DOT com> wrote: I don't know a way to measure how much is "redundant" easily. Maybe the much vaunted Aptare would have that - I'll wa
Author: "Michaels, Keith R" <keith.r.michaels AT pss.boeing DOT com>
Date: Tue, 8 Apr 2008 20:06:27 -0700
It should be possible to go through the catalog and determine how much redundancy is present based on the schedules and retentions. For example if the schedule calls for monthly fulls and the same fi
Author: "Jeff Lightner" <jlightner AT water DOT com>
Date: Wed, 9 Apr 2008 08:55:58 -0400
Maybe not just site specific but vendor specific? We’re using Data Domain rather than PureDisk. My comments about how much is being deduped was based both on our experience and those posted by
Author: "Jeff Lightner" <jlightner AT water DOT com>
Date: Wed, 9 Apr 2008 09:03:29 -0400
“unnecessary copies” made me remember to say its important to plan on restore time as well as backup time. While it may be “redundant” to have all your files on every backup i
Author: "Michaels, Keith R" <keith.r.michaels AT pss.boeing DOT com>
Date: Wed, 9 Apr 2008 09:08:59 -0700
Controlling restore time is key and has to do with the number of media needed. But limiting restore time does not mean we have to have excess backup copies. With a disk-only solution we obviously don