Benefits of EBS IO1 over GP3 volume type

Question

Why should one uses IO1 volume over GP3 when it is now possible to manually enter the number of IOPS desired for the GP3 volume ?

Blunger

Answer 1

It always depends on what your workload needs. The documentation has a nice comparison chart: EBS Volume Types: Solid state drives (SSD)

The main differences are the following:

• gp3 can scale up to 16.000 IOPS whereas io1 can scale up to 64.000 IOPS
• io1 volumes support EBS Multi-Attach and gp3 doesn't

If you need EBS Multi-Attach or more than 16k IOPS, you'll probably want to go with io1 volumes, otherwise gp3 will usually be fine.

Niobium

Clear answer. Will definitely help me out in my choice. Thanks – Blunger