HI, I can think of a situation in which all servers have dual port IB cards and need failover of OpenSM to achieve HA. As I know, OpenSM can only bind to 1 port at a time, so do I need to start 2 OpenSM in server A and 2 OpenSM in server B? Will they use the same guid2lid file? Do I need to set something in the config file or they will automatically communcate each other? Do I need to run sldd.sh manually or it will automatically sync with other OpenSM?
Thanks a lot. Regards, PN 2009/8/26 Hal Rosenstock <[email protected]> > > > On 8/25/09, [email protected] <[email protected]> wrote: >> >> Hi all, >> >> Quick question - is there a need to run anything except opensmd deamons to >> provide failover capability on ib network in ofed 1.3? > > > In terms of SM failover, modulo bugs fixed relative to this feature since > OFED 1.3 (there are a couple of things here which may affect your > environment if I recall correctly), you only need to run more than 1 SM for > this (one will become master, the other standby). > > I'm aware that when master manager dies standby one comes in and manages >> the network, but that does not necessary means that lids are preserved, >> especially for nodes joining in. I used to run sldd.sh for distributing lids >> list on ofed 1.2.5, but while this script seems to be in place noone >> mentions necessity for it. > > > So subnet manager failover is provided by running standby opensm. > > > And how LID preservation is provided? > > > If you want LIDs to be preserved, the guid2lid file needs to be sync'd > (copied from the master SM once it's fully assembled to the node which is > running the standby SM). That's what the sldd.sh script does. > > -- Hal > > Regards, >> >> Zdenek Kovlensky >> >> ---------------------------------------------------------------------- >> Kup wlasne mieszkanie za 33 tys. zl! >> Sprawdz >>> http://link.interia.pl/f22f2 >> >> _______________________________________________ >> general mailing list >> [email protected] >> http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general >> >> To unsubscribe, please visit >> http://openib.org/mailman/listinfo/openib-general >> > > > _______________________________________________ > general mailing list > [email protected] > http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general > > To unsubscribe, please visit > http://openib.org/mailman/listinfo/openib-general > -- Best Regards, PN Lai HPC Specialist Galactic Computng Corp. Tel: 86-755-26733939 ext 826 Mobile: 86-13823161729 Fax: 86-755-26733780 URL: http://www.galactic.com.hk
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