Hi, Below is the workload we have run and we see PHY changes during I/O Does fio abort outstanding commands? Workload: fio --eta=never --ioengine=libaio --size=100% --ramp_time=10 --runtime=40 --time_based=1 --verify_backlog=1 --verify_dump=1 --verify_fatal=1 --norandommap --numjobs=1 --direct=1 --random_generator=tausworthe64 --iodepth=8 --rw=write --bs=1M --buffer_pattern=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 --minimal --name=/dev/sdp --name=/dev/sdq --name=/dev/sdr --name=/dev/sds --name=/dev/sdt --name=/dev/sdu --name=/dev/sdv --name=/dev/sdw --name=/dev/sdx --name=/dev/sdy --name=/dev/sdz --name=/dev/sdaa --name=/dev/sdaf --name=/dev/sdag --name=/dev/sdah --name=/dev/sdai --name=/dev/sdab --name=/dev/sdac --name=/dev/sdad --name=/dev/sdae --name=/dev/sdaj --name=/dev/sdak --name=/dev/sdal --name=/dev/sdam --name=/dev/sdan --name=/dev/sdao --name=/dev/sdaq --name=/dev/sdap --name=/dev/sdf --name=/dev/sdg --name=/dev/sdh --name=/dev/sdi --name=/dev/sdj --name=/dev/sdk --name=/dev/sdl --name=/dev/sdm --name=/dev/sdo --name=/dev/sdn --name=/dev/sde --name=/dev/sdd --name=/dev/sdc --name=/dev/sdb We do not see this behaviour with SAS drives. Thank you, Siha
