for AWS users out there - this seems like an interesting choice for a big redis machine

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Dvir Volk

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Jul 19, 2012, 5:12:56 AM7/19/12
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Yiftach Shoolman

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Jul 19, 2012, 5:24:03 AM7/19/12
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Pricing aside (very expensive), AWS is progressing in the right direction 

On Thu, Jul 19, 2012 at 12:12 PM, Dvir Volk <dvi...@gmail.com> wrote:

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Yiftach Shoolman
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Pierre Chapuis

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Jul 19, 2012, 8:50:32 AM7/19/12
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The SSD storage is local to the instance. [...] It will be lost if you stop and then later start the instance.

Just like the instance storage on the other EC2 instance types, this storage is failure resilient, and will survive a reboot, but you should back it up to Amazon S3 on a regular basis.

 The failures in "failure resilient" here don't include disk failure. You may or may not want to take that risk... Moreover I guess it's still Xen underneath so the fork issue is not solved.

Dvir Volk

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Jul 19, 2012, 8:54:57 AM7/19/12
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the fork should not be an issue - Amazon's high end machines use hardware based virtualization which makes it just as fast as any other VM. it's the older, lower end machines only that have this problem. 
you just need to select the right AMI. The cheapest machine that can run this way costs about $1000/month, and has 23G RAM.


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Pierre Chapuis

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Jul 19, 2012, 10:07:59 AM7/19/12
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Le jeudi 19 juillet 2012 14:54:57 UTC+2, dvirsky a écrit :
the fork should not be an issue - Amazon's high end machines use hardware based virtualization which makes it just as fast as any other VM. it's the older, lower end machines only that have this problem. 
  you just need to select the right AMI. The cheapest machine that can run this way costs about $1000/month, and has 23G RAM.

Good to know. I though the only way to get hardware-based virtualization was to choose Windows instances... 

Dvir Volk

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Jul 19, 2012, 10:12:43 AM7/19/12
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No, I talked to their support last week, they said that the the high end instances use it on Linux too, and while porting all instances to work with hardware support is on their road map, they cannot commit to a time frame on this.


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