On 01/10/2020 12:15, Shin'ichiro Kawasaki wrote: > If the test target devices is a zoned block device with max_active_zones > limit, the fio command in block/004 opens zones beyond the limit and > fails with I/O errors. > > To avoid the failure, pass the limit value to fio using --max_open_zones > option. This option, which was introduced to fio together with > zonemode=zbd, keeps the number of open zones within the specified value. What happens if I use a fio version that does not have the --max_open_zones option defined?