AWS | EBS Disk Types
There are 4 types of EBS disk (at the time of writing) and it will depend on what you want to do with the disk to what type you use.
Below is a quick breakdown of each disk type and a description:
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As you will see two options of SSD and HDD.
A very useful link that explains everything about ‘EBS Volume Types’. It covers off the older generation volume types as well as ‘I/O Credits and Burst Performance’.
This can be found here.