[ceph-users] Re: Strange hardware behavior

Hi! In this case, using dd is quite acceptable. ----- Original Message -----

From: vitalif@yourcmc.ru To: "Fyodor Ustinov" <ufm@ufm.su> Cc: "EDH - Manuel Rios Fernandez" <mriosfer@easydatahost.com>, "ceph-users" <ceph-users@ceph.io> Sent: Tuesday, 3 September, 2019 15:18:23 Subject: Re: [ceph-users] Re: Strange hardware behavior

Please never use dd for disk benchmarks.

Use fio. For linear write:

fio -ioengine=libaio -direct=1 -invalidate=1 -name=test -bs=4M -iodepth=32 -rw=write -runtime=60 -filename=/dev/sdX