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From Ted Dunning <ted.dunn...@gmail.com>
Subject Re: EC2 disk configuration for zookeeper? One big disk or two smaller ones per node?
Date Tue, 09 Oct 2012 16:44:15 GMT
I have some experience with these.

On Tue, Oct 9, 2012 at 4:47 PM, Eric Fleischman <eric@ericfleischman.com>wrote:

> * Using high IOPS instances
>

Haven't tried this.


> * Using multiple disks and doing OS level RAID across them to present a
> single logical disk to the app
>

This typically is very dangerous unless you can somehow arrange for disks
not to present lowest common denominator performance.


> * Local vs. EBS volumes
>

Local tends to be much lower variance.  EBS can show 10:1 variations in
performance.  Even the same volume can change dramatically over time.

 * Standard vs. provisioned IOPS w/EBS
>

Haven't tried this.

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