[fio.git] / examples / cross-stripe-verify.fio

# Example of how to split a drive up into sections, manually, and perform
# verify from a bunch of jobs. This example is special in that it assumes
# the drive is at around 30 * 124G in size, so with the below settings, we'll
# cover most of the drive. It's also special in that it doesn't write
# everything, it just writes 16k at a specific boundary, for every 128k.
# This is done to exercise the split path for Intel NVMe devices, most of
# which have a 128k stripe size and require IOs to be split if the cross
# the stripe boundary.
#
[global]
bs=16k
direct=1
rw=write:112k
verify=crc32c
filename=/dev/nvme0n1
verify_backlog=1
offset_increment=124g
io_size=120g
offset=120k
group_reporting=1
verify_dump=1
loops=2

[write-verify]
numjobs=30
Commit	Line	Data
58dc28f4 JA	1	# Example of how to split a drive up into sections, manually, and perform
	2	# verify from a bunch of jobs. This example is special in that it assumes
	3	# the drive is at around 30 * 124G in size, so with the below settings, we'll
	4	# cover most of the drive. It's also special in that it doesn't write
	5	# everything, it just writes 16k at a specific boundary, for every 128k.
	6	# This is done to exercise the split path for Intel NVMe devices, most of
	7	# which have a 128k stripe size and require IOs to be split if the cross
	8	# the stripe boundary.
	9	#
	10	[global]
	11	bs=16k
	12	direct=1
	13	rw=write:112k
	14	verify=crc32c
	15	filename=/dev/nvme0n1
	16	verify_backlog=1
	17	offset_increment=124g
	18	io_size=120g
	19	offset=120k
	20	group_reporting=1
	21	verify_dump=1
	22	loops=2
	23
	24	[write-verify]
	25	numjobs=30