Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
So here's a further update: I tried uninstalling MLNX_OFED-1.5.1 and using the CentOS5.5 OFED, which is 1.4.x based. The SDP connection worked without a manual drbd-setup invocation. However, as Lars believed, the performance didn't appear affected by the connect() problem. SDP on the CentOS OFED was about 1-2% worse than the MLNX_OFED-1.5.1. SDP on both was about 65-70% of IPoIB throughput in DRBD. So SDP is performing at about two thirds of IPoIB for DRBD. Overall, SDP and IPoIB of the MLNX_OFED-1.5.1 outperformed the same protocol in the CentOS OFED by about 1-3% from what I saw. Another interesting problem is that you can't bond back-to-back dual-port IB cards in 2 servers. Each port is a separate fabric when not connected to a switch, and ib-bonding only works if they are on the same fabric (ie switch). This is the opposite of the Dolphin Express cards, which combine the ports into a single fabric when back-to-back. Any chance you would take a feature request to support multiple network interfaces for DRBD devices, even if active-passive only? =) Cheers, -JR -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20100921/fd939f46/attachment.htm>