Add -diskType flag to specify the target disk type for EC operations:
- ec.balance -diskType=ssd
- ec.encode -diskType=ssd
The disk type can be 'hdd', 'ssd', or empty for default (hdd).
This allows placing EC shards on SSD or other disk types instead of
only HDD.
Example usage:
ec.balance -collection=mybucket -diskType=ssd -apply
ec.encode -collection=mybucket -diskType=ssd -force