On Thu, Sep 22, 2016 at 11:39:09AM -0700, Ray Van Dolson wrote:
On Thu, Sep 22, 2016 at 02:32:30PM -0400, jordan slingerland wrote:
Sales guys are promising me 4:1 dedup ratios on an AFF with ontap9. They say they grantee it. I have specifically asked what stipulation. In a VDI environment with linked clones, etc. Sales guy tells me none and even specifically says they can dedup compressed video or audio (mp3) 4:1.
I have A LOT of trouble believing that. So, 4:1 dedup guaranteed or what?
Any comments welcome.
--Jordan
We'll be POC'ing one, so will see. Am skeptical, but don't think it's like Pure Storage where they also factor in snapshots.
Most likely the guarantee is a carrot, and if they fall short, they'll give you hardware to make up the difference. Subsequent purchases, however won't give you the same guarantee so you'll need to buy more (again, this is also what Pure does).
Other thoughts?
Ray
Correction: Looking back at notes I have, the guarantee relies on the use of inline deduplication, inline compression, "compaction"[1], thin provisioning as well as factoring in "regular" volume snapshots.
NetApp will help you realize the 4:1 savings given the techniques described previously and then provide additional capacity if needed.
So, take out the snapshots and thin provisioning and will you see significantly better savings than with other technologies? Not sure -- I'd guess it'll be pretty similar.
Ray
[1] https://urldefense.proofpoint.com/v2/url?u=http-3A__www.theregister.co.uk_20...