size
The size of the volume, in GiBs. You must specify either a snapshot ID or a volume size. If you specify a snapshot, the default is the snapshot size, and you can specify a volume size that is equal to or larger than the snapshot size.
Valid sizes:
gp2:
1 - 16,384
GiBgp3:
1 - 65,536
GiBio1:
4 - 16,384
GiBio2:
4 - 65,536
GiBst1 and sc1:
125 - 16,384
GiBstandard:
1 - 1024
GiB