Write pass for filling volumes with data before testing their read speeds.

writepass.fio

[global]
direct=1
ioengine=libaio
rw=randwrite
numjobs=16
size=1G
bs=16k
time_based
runtime=20
group_reporting
stonewall
name=test_file
norandommap


[test-write-gold]
directory=/gold
write_bw_log=randread-gold-test
write_lat_log=randread-gold-test
write_iops_log=randread-gold-test

[test-write-silver]
directory=/silver
write_bw_log=randread-silver-test
write_lat_log=randread-silver-test
write_iops_log=randread-silver-test

[test-write-bronze]
directory=/bronze
write_bw_log=randread-bronze-test
write_lat_log=randread-bronze-test
write_iops_log=randread-bronze-test