Hi all, I want fio to do an split verification for RAID as did in https://github.com/axboe/fio/issues/468. Once written, the verification will be repeat several times for raid recovery for each disk. The example job file is as below: ----- write job ----- [global] do_verify=0 iodepth=32 filename=/dev/nvme0n6 rw=randwrite ioengine=libaio verify=crc32c-intel direct=1 verify_offset=100 bs=4096 [job_0] size=209715200 offset=0 ----- read job ----- [global] do_verify=1 verify_state_load=1 iodepth=32 filename=/dev/nvme0n6 rw=read ioengine=libaio verify=crc32c-intel direct=1 verify_offset=100 bs=4096 [job_0] size=209715200 offset=0 I don't see it use the same randseed. Can it generate the same offset as write phase without randseed= option set? If I use randbs= to also use an random write blocksizes, how can I ensure the verification will do the same as write? Can write_iolog ensure that? However, I suppose it may slow down the write speed and randomness of test. Regards, Vaughan -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
