Amazon EBS (Elastic Block Store) - persistent storage

Re:Amazon EBS (Elastic Block Store) - persistent storage by johnrob on Thursday August 21, 2008 @04:19PM (#283108)

This could be leveraged into a much cheaper (albeit less reliable) version of simple queue service. You can have multiple EC2 instances feeding off of the same disk used as a central repository.

In general, EBS is making me think creatively about how to better architect distributed systems. SQS was both expensive and somewhat limited in scope. But now that I get disks in common, there's no restriction as to how I might partition work among EC2s.

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Re:Amazon EBS (Elastic Block Store) - persistent storage by rapind on Thursday August 21, 2008 @08:30PM (#283332)

SQS got a lot cheaper, I think around Feb this year. Are you sure you aren't going by the old prices? I find it very affordable now.

$0.01 per 10,000 requests $0.100 per GB in $0.170 per GB out (less with higher volume).

I can't remember exactly, but I think it was only a per request cost before of around $0.10 per 1,000 or something.

Also the in/out costs don't apply when they're coming from EC2, which would be the case in your scenario I believe. So from EC2 if you're doing an EC2 based distributed system, you're looking at one dollar per million requests (so for processing a message in a distributed system typically one dollar per 500,000 messages pushed then pulled).

Pretty cheap by my standards. Much cheaper than it was at initial launch.

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