Question: why mdadm instead of lvm?

[yaroslav-nakonechnikov]

Hello,

i would like to ask for some more clearence, why mdadm was chosen?
as for now i'm trying to run eks with managed nodes + karpenter with bottlerocket, and it looks like that preparing disks before kubernetes will see active node is a bit better solution (in case we are not using old instance types, where it is needed to wait when ephemeral disk will be initialized), so i also wonder on the way how to make single space from several ephemeral disks.

my options were:

• mdadm
• lvm
• zfs

and before creating my own bike, i found your solution... and would like to ask - what was the main reason to choose mdadm?