Hi Florent,
Cache tiering , No .
** Our Architecture :
vdbench/FIO inside VM <--> RBD without cache <-> Ceph Cluster (6 OSDs + 3 Mons)
Thanks
sumit
[root@ceph-mon01 ~]# ceph -s
cluster 47b3b559-f93c-4259-a6fb-97b00d87c55a
health HEALTH_WARN clock skew detected on mon.ceph-mon02, mon.ceph-mon03
monmap e1: 3 mons at {ceph-mon01=192.168.10.19:6789/0,ceph-mon02=192.168.10.20:6789/0,ceph-mon03=192.168.10.21:6789/0}, election epoch 14, quorum 0,1,2 ceph-mon01,ceph-mon02,ceph-mon03
osdmap e603: 36 osds: 36 up, 36 in
pgmap v40812: 5120 pgs, 2 pools, 179 GB data, 569 kobjects
522 GB used, 9349 GB / 9872 GB avail
5120 active+clean
On Mon, Feb 2, 2015 at 12:21 AM, Florent MONTHEL <fmonthel@xxxxxxxxxxxxx> wrote:
Hi Sumit
Do you have cache pool tiering activated ?
Some feed-back regarding your architecture ?
Thanks
Sent from my iPad
> On 1 févr. 2015, at 15:50, Sumit Gaur <sumitkgaur@xxxxxxxxx> wrote:
>
> Hi
> I have installed 6 node ceph cluster and to my surprise when I ran rados bench I saw that random write has more performance number then sequential write. This is opposite to normal disk write. Can some body let me know if I am missing any ceph Architecture point here ?
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