On 07/09/2020 05:06, Damien Le Moal wrote: > May be you meant something like "leave a zone not active after a truncate when > the zone file is open for writing" ? No I meant, we shouldn't decrement the 's_open_zones' count on truncate to 0 or full, when a zone is still opened for write. Because if we do, another thread could open the last available open zone and the application won't be able to write to a previously opened zone, if that makes sense.