Posts by danisaacs

Speedier Splunk-ing: NetApp SANtricity eases your analytics flow

Re: "performance without the Data ONTAP data services overhead"

If you want only performance and don't care about data management happening at the array level, then EF can't be beat (without spending 10x as much $)

And regarding the AutoSupport mention in the article, it has always down that, NetApp just wasn't talking about it much.

NetApp adds in-line dedupe to all-flash FAS arrays

Hi Paul, miss you!

Not an afterthought, a primary objective. And while inline does reduce disk IO, it also increases CPU cycles. This is why Pure, for example, will disable it under heavy load. To be done "properly" you would have to have a more or less fixed metadata storage to capacity ratio. This means your DRAM would be the limiting factor in your ability to scale up capacity, which Dell/EMC face with Xbricks.

In its current iteration, Data ONTAP's inline dedupe is recommended to be used in conjunction with post-process to provide optimal savings. Inline is most helpful for a some VDI use cases that were an issue with post-process only. Primarily OS patching for persistent desktops.

The guidelines are simple: Don't use it for databases (they don't dedupe), use it for VDI.

Cheers, mate!