Heads up - if you&#x27;ve bought a high density disk recently, it&#x27;s probably SMR internally anyways.<p>A write to one area can be done in a single disc rotation, as long as it&#x27;s sequential.<p>SMR disks added what are called ZBC, Zoned Block Commands to the SCSI spec. The disk itself exposes the ability to interact with zones several ways:<p>- REPORT ZONES - What zones there are, how many, what type, and state of the zone.<p>- OPEN &#x2F; CLOSE &#x2F; FINISH ZONE - zone write state management<p>So essentially, it&#x27;s like a drive exposes ~8 files, opened with O_APPEND, and you have to manage how you stripe your writes between those files to handle your workload. Your disk can also have zones that aren&#x27;t shingled, but those seem to have been fairly unpopular.