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Re: [Veritas-bu] NBU7 / De-Dupe?
2010-04-02 10:41:20
On Fri, Apr 2, 2010 at 8:29 AM, David Stanaway <david AT stanaway DOT net> wrote:
These number aren't that hot compared to DataDomain from my use of it.
We are seeing 86TB of backup images occupying 4.4TB of phys disk. It all depends on the data streams and how many generations you keep. If you keep a year's worth of weekly full copies of the same data, you're going to have 52:1 de-dupe. If you need to only keep 1 copy and the data doesn't have duplicate blocks (e.g. TIFF images), you're going to have no de-dupe at all.
This is all VERY customer-specific. The only way to know if a de-dupe appliance (or the software) is worth the price is to evaluate it. You may even find, like we did, that it's suitable and justifiable for some of your data but not others.
.../Ed _______________________________________________
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