When we added 'options lnet networks=o2ib(ib0),tcp1(ib0)' to the MDS and the OSS's, communications from the nodes using tcp1 would not be returned by the OSS's. We need to use two protocols over the same interface. Is this possible?
Bob Hayes HPC Sys. Admin. Intel Corp Software & Services Group/DRD/CRT-DC DP3-307-H7 Tel: (253)371-3040 2800 N Center Dr Fax: (253)371-4647 DuPont WA 98327 [email protected]<mailto:[email protected]> From: Cliff White [mailto:[email protected]] Sent: Wednesday, March 21, 2012 9:28 AM To: Hayes, Bob Cc: [email protected] Subject: Re: [Lustre-discuss] Seeking LNET router recomendations Or to put it another way, if your OSS systems can already 'see' both IB and IPoIB networks the most cost effective, high performance solution would be to add the necessary interface and put your MDS/MGS on both networks also. No need for routers, no performance impact. cliffw On Tue, Mar 13, 2012 at 11:25 AM, Hayes, Bob <[email protected]<mailto:[email protected]>> wrote: Are there any recommendations or guidelines for sizing a LNET routing facility. ~400 nodes, 8 OSS (dual socket E5 w/48GB RAM), 24 OST (10spindle RAID6 over SRP), 1 MGS/MDT How much load does LNET routing put on a system? If I make the 8 OSS systems do double duty as IB to IPoIB routers, will it have much impact on performance? Bob Hayes HPC Sys. Admin. Intel Corp Software & Services Group/DRD/CRT-DC DP3-307-H7 Tel: (253)371-3040<tel:%28253%29371-3040> 2800 N Center Dr Fax: (253)371-4647<tel:%28253%29371-4647> DuPont WA 98327 [email protected]<mailto:[email protected]> _______________________________________________ Lustre-discuss mailing list [email protected]<mailto:[email protected]> http://lists.lustre.org/mailman/listinfo/lustre-discuss -- cliffw Support Guy WhamCloud, Inc. www.whamcloud.com<http://www.whamcloud.com>
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