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Code Issues Releases Wiki Activity

Added cost gotcha around provisioned IOPS

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Corey Quinn 2017-12-20 16:02:49 -08:00
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@ -969,6 +969,7 @@ EBS
- ⏱A worthy read is AWS’ [post on EBS IO characteristics](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-io-characteristics.html) as well as their [performance tips](http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSPerformance.html#d0e86148).
- ⏱One can [provision IOPS](http://aws.amazon.com/ebs/details/) (that is, pay for a specific level of I/O operations per second) to ensure a particular level of performance for a disk.
- ⏱A single EBS volume allows 10k IOPS max. To get the maximum performance out of an EBS volume, it has to be of a maximum size and attached to an EBS-optimized EC2 instance.
- 💸Standard EBS volumes improve IOPS with size. It may make sense for you to simply enlarge a volume instead of paying for better performance explicitly. This can in many cases reduce costs by 2/3.
- A standard block size for an EBS volume is 16kb.
### EBS Gotchas and Limitations