On Tue, Dec 01, 2020 at 11:03:35AM +0000, Damien Le Moal wrote: > Well, not really. HA drives, per specifications, are backward compatible. If > they are partitioned, the block layer will force a regular drive mode use, > hiding their zoned interface, which is completely optional to use in the first > place. > > If by "untested territory" you mean the possibility of hitting drive FW bugs > coming from the added complexity of internal GC, then I would argue that this is > a common territory for any FS on any drive, especially SSDs: device FW bugs do > exist and show up from time to time, even on the simplest of drives. Also note that most cheaper hard drives are using SMR internally, you'll run into the same GC "issues" as with a HA drive that is used for random writes.