Re: [ceph-users] Ceph performances

2015-11-07 Thread Hugo Slabbert
On Sat 2015-Nov-07 09:24:06 +0100, RĂ©mi BUISSON wrote: Hi guys, I would need your help to figure out performance issues on my ceph cluster. I've read pretty much every thread on the net concerning this topic but I didn't manage to have acceptable performances. In my company, we are planning

Re: [ceph-users] iSCSI over RDB is a good idea ?

2015-11-04 Thread Hugo Slabbert
5-11-04 - 13:48 > We are using SCST over RBD and not seeing much of a degradation...Need to > make sure you tune SCST properly and use multiple session.. > > Thanks & Regards > Somnath > > -Original Message- > From: ceph-users [mailto:ceph-users-boun...@list

Re: [ceph-users] iSCSI over RDB is a good idea ?

2015-11-04 Thread Hugo Slabbert
> The disadvantage of the iSCSI design is that it adds an extra hop between > your VMs and the backing Ceph cluster. ...and introduces a bottleneck. iSCSI initiators are "dumb" in comparison to native ceph/rbd clients. Whereas native clients will talk to all the relevant OSDs directly, iSCSI in