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Date: Thu, 26 May 2016 10:54:54 -0400
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 <CAHwLALPLJkOXB9saQYeJOkT6XW_pz_N1MVpH6GzJWcBKGwd9hQ@mail.gmail.com>
Subject: Re: Testing in AWS, EBS
From: Rayson Ho <raysonlogin@gmail.com>
To: Artem Tomyuk <admin@leboutique.com>
Cc: Yves Dorfsman <yves@zioup.com>, pgsql-performance@postgresql.org
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Sender: pgsql-performance-owner@postgresql.org

Thanks Artem.

So no EBS pre-warming does not apply to EBS volumes created from snapshots.

Rayson

==================================================
Open Grid Scheduler - The Official Open Source Grid Engine
http://gridscheduler.sourceforge.net/
http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html


On Thu, May 26, 2016 at 10:52 AM, Artem Tomyuk <admin@leboutique.com> wrote:
> Please look at the official doc.
>
> "New EBS volumes receive their maximum performance the moment that they are
> available and do not require initialization (formerly known as pre-warming).
> However, storage blocks on volumes that were restored from snapshots must be
> initialized (pulled down from Amazon S3 and written to the volume) before
> you can access the block"
>
> Quotation from:
> http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-initialize.html
>
> 2016-05-26 17:47 GMT+03:00 Rayson Ho <raysonlogin@gmail.com>:
>>
>> On Thu, May 26, 2016 at 10:00 AM, Artem Tomyuk <admin@leboutique.com>
>> wrote:
>>>
>>>
>>> 2016-05-26 16:50 GMT+03:00 Rayson Ho <raysonlogin@gmail.com>:
>>>>
>>>> Amazon engineers said that EBS pre-warming is not needed anymore.
>>>
>>>
>>> but still if you will skip this step you wont get much performance on ebs
>>> created from snapshot.
>>
>>
>>
>> IIRC, that's not what Amazon engineers said. Is that from your personal
>> experience, and if so, when did you do the test??
>>
>> Rayson
>>
>> ==================================================
>> Open Grid Scheduler - The Official Open Source Grid Engine
>> http://gridscheduler.sourceforge.net/
>> http://gridscheduler.sourceforge.net/GridEngine/GridEngineCloud.html
>>
>>
>>
>


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