On Thu, Mar 10, 2022 at 05:38:35PM +0000, Adam Manzanares wrote: > > Do these drives even support Zone Append? > > Should it matter if the drives support append? SMR drives do not support append > and they are considered zone block devices. Append seems to be an optimization > for users that want higher concurrency per zone. One can also build concurrency > by leveraging multiple zones simultaneously as well. Not supporting it natively for SMR is a major pain. Due to hard drives being relatively slow the emulation is somewhat workable, but on SSDs the serialization would completely kill performance.