On 06/04/2012 09:53 AM, Stefan Priebe - Profihost AG wrote: > Am 04.06.2012 09:39, schrieb Hannes Reinecke: >> On 06/04/2012 09:26 AM, Stefan Priebe - Profihost AG wrote: >>> Am 04.06.2012 08:22, schrieb Hannes Reinecke: >>>> Hehe. >>>> Good luck with that. >>>> >>>> We've tried on 10GigE with _disastrous_ results. >>>> Up to the point where 1GigE was actually _faster_. >>> >>> So you mean you've tried 10GBE or 10GB ipoib with Infiniband? > > Could you please answer this question too? Thx. > This was plain 10GigE, ie TCP/IP. Not infiniband, I'm afraid. However, given that our problems have not been related to the actual transport I'd be very much surprised if they would not occur on Infiniband. And I would _definitely_ like to hear if someone managed to get any decent speed (notably write speed) on fast interconnects. There's always a chance we've messed things up and were just measuring our crap setup ... Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html