Hello,
If this is too long for you, TL;DR; section on the bottom
I created a CEPH cluster made of 3 SuperMicro servers, each with 2 OSD
(WD RED spinning drives) and I would like to optimize the performance of
RBD, which I believe is blocked by some wrong CEPH configuration,
because from my ob
a single thread/iodepth=1 sequentially here.
Then only 1 disk at time, and you have network latency too.
rados bench is doing 16 concurrent write.
Try to test with fio for example, with bigger iodepth, small block/big block ,
seq/rand.
- Mail original -----
De: "Petr Bena&qu
gives 200 random iops per disk which is
acceptable.
/Maged
On 04/10/2019 17:28, Petr Bena wrote:
Hello,
I tried to use FIO on RBD device I just created and writing is really
terrible (around 1.5MB/s)
[root@ceph3 tmp]# fio test.fio
rbd_iodepth32: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W
