страйп ничего не дал
# sudo zpool create -f -O compression=off -O atime=off -O recordsize=8k -O logbias=throughput -O xattr=sa -o ashift=12 -m /var/lib/test test /dev/disk/by-id/google-data-disk-31 /dev/disk/by-id/google-disk-32 /dev/disk/by-id/google-data-disk-33
# sudo fio --name=random-write --ioengine=libaio --rw=randwrite --bs=8k --numjobs=1 --size=4g --iodepth=1 --runtime=60 --time_based --end_fsync=1 --filename=/var/lib/test/file
random-write: (g=0): rw=randwrite, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=1
fio-3.16
Starting 1 process
random-write: Laying out IO file (1 file / 4096MiB)
Jobs: 1 (f=1): [F(1)][100.0%][w=23.8MiB/s][w=3040 IOPS][eta 00m:00s]
random-write: (groupid=0, jobs=1): err= 0: pid=2106293: Thu Dec 3 21:06:22 2020
write: IOPS=39.0k, BW=305MiB/s (320MB/s)(18.2GiB/61191msec); 0 zone resets
slat (usec): min=9, max=22532, avg=22.76, stdev=57.36
clat (nsec): min=725, max=7129.2k, avg=1202.51, stdev=8120.37
lat (usec): min=9, max=22541, avg=24.19, stdev=58.45
clat percentiles (nsec):
| 1.00th=[ 932], 5.00th=[ 964], 10.00th=[ 988], 20.00th=[ 1004],
| 30.00th=[ 1012], 40.00th=[ 1032], 50.00th=[ 1032], 60.00th=[ 1048],
| 70.00th=[ 1080], 80.00th=[ 1256], 90.00th=[ 1592], 95.00th=[ 1768],
| 99.00th=[ 2096], 99.50th=[ 2448], 99.90th=[15424], 99.95th=[16512],
| 99.99th=[28288]
bw ( KiB/s): min=140614, max=421872, per=100.00%, avg=318640.91, stdev=70243.46, samples=119
iops : min=17576, max=52734, avg=39830.11, stdev=8780.49, samples=119
lat (nsec) : 750=0.01%, 1000=17.41%
lat (usec) : 2=80.97%, 4=1.29%, 10=0.18%, 20=0.12%, 50=0.02%
lat (usec) : 100=0.01%, 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
lat (msec) : 2=0.01%, 4=0.01%, 10=0.01%
cpu : usr=10.03%, sys=85.34%, ctx=3598, majf=0, minf=12
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwts: total=0,2389346,0,1 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: bw=305MiB/s (320MB/s), 305MiB/s-305MiB/s (320MB/s-320MB/s), io=18.2GiB (19.6GB), run=61191-61191msec
вообще вы пишете что на фио страйп ничего не дал, но на одном диске у вас было write: IOPS=28.2k, BW=221MiB/s , а на страйпе write: IOPS=39.0k, BW=305MiB/s