how to run fio verification reliably in case of error

"Mittal, Rishabh" <rimittal@xxxxxxxx> · Thu, 19 Sep 2019 23:35:38 +0000

 Hi,  

This is Rishabh. We are using fio over disks exposed through iscsi. I am giving these params in fio

    fio --name=randwrite --ioengine=libaio --iodepth=64 --rw=randrw --rwmixread=50  --bs=4k --direct=1 -filename=data --numjobs=1 --runtime 36000 --verify=md5 --verify_async=4 --verify_backlog=100000 --verify_dump=1 --verify_fatal=1 --time_based --group_reporting --continue_on_error = io

If an error happens on an IO then how verification happens of that IO. Does FIO completely skip that IO for any future verification or does it maintain multiple checksums and passes if it verifies with any of the previous checksums.    

Thanks
Rishabh Mittal