AWS gp2 -> gp3

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tl;dr I want to change **all** storage types in AWS from gp2 to gp3 next week.


The recent Change proposal

  https://fedoraproject.org/wiki/Changes/CloudEC2gp3

brought to my attention that gp3 is actually faster and cheaper than gp2. The comparision is as follows:

gp2:

 * $0.10 per GB-month

 * IOPS: 100 IOPB, burstable to 3000 IOPS

 * Throughput:  Throughput limit is between 128 MiB/s and 250 MiB/s, depending on the volume size.

gp3:

 * IOPS: 3000 for free, addional IOPS can be bought

 * Throughput 125 MiB/s for free, addional throughput can be bought

For more information see https://aws.amazon.com/blogs/storage/migrate-your-amazon-ebs-volumes-from-gp2-to-gp3-and-save-up-to-20-on-costs/

We have about 150 volumes of gp2 type in AWS. Copr is the most prominent user, but there are other: libravatar, taiga, TF, and other...

The type of the storage can be changed on the fly - even for attached and volumes in-use. I already tried that with my private server. Unless somebody will have objections I plan to change volume types to gp3 for Copr next week and for all other services in week following Easter.

I also modified fedimg template to allow gp3 https://pagure.io/fedora-infra/ansible/c/034cf953db5d0519eb327136abd72a2ee6f32bfd?branch=main

If you have scripts outside of fedora-infra/ansible to provision instances that uses gp2 for volumes, it will be great if you can move it to gp3.

Miroslav

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