[openib-general] OpenSM - guid2lid cache file questions
Hi list, I have a question regarding the guid2lid cache file. The file is read by OpenSM on the start up. OpenSM may reassign LIDs according to the LIDs saved in this file. It isn't always acceptable. Is it a right policy? Am I missing anything here? Is there a way to disable the file reading on start up? Regards, Leonid ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] OpenSM - guid2lid cache file questions
Hi Leonid, On Tue, 2006-09-05 at 03:30, Leonid Arsh wrote: Hi list, I have a question regarding the guid2lid cache file. The file is read by OpenSM on the start up. OpenSM may reassign LIDs according to the LIDs saved in this file. It isn't always acceptable. Is it a right policy? Am I missing anything here? Is there a way to disable the file reading on start up? There is the -r (--reassign_lids) option for this but it is not the default behavior of OpenSM. -- Hal Regards, Leonid ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] OpenSM - guid2lid cache file questions
Hi Hal, Thank you for your reply. Probably I wasn't clear. I have a problem when OpenSM, being started, reads an out-if-date guid2lid file. OpenSM changes LIDs in this case. I don't want the LIDs to be changed. As I understand it, the '-r' option, on the contrary, causes the SM to reassign all the LIDs. I could just remove the file to handle the problem. I'd like to know if there is a way to do it without touching the file. Thanks, Leonid On 05 Sep 2006 06:57:53 -0400, Hal Rosenstock [EMAIL PROTECTED] wrote: Hi Leonid, On Tue, 2006-09-05 at 03:30, Leonid Arsh wrote: Hi list, I have a question regarding the guid2lid cache file. The file is read by OpenSM on the start up. OpenSM may reassign LIDs according to the LIDs saved in this file. It isn't always acceptable. Is it a right policy? Am I missing anything here? Is there a way to disable the file reading on start up? There is the -r (--reassign_lids) option for this but it is not the default behavior of OpenSM. -- Hal Regards, Leonid ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] OpenSM - guid2lid cache file questions
Hi Leonid, On Tue, 2006-09-05 at 08:11, Leonid Arsh wrote: Hi Hal, Thank you for your reply. Probably I wasn't clear. I have a problem when OpenSM, being started, reads an out-if-date guid2lid file. OpenSM changes LIDs in this case. How do you know the file is out of date ? I don't want the LIDs to be changed. Oh, it's the other way you were asking about. As I understand it, the '-r' option, on the contrary, causes the SM to reassign all the LIDs. I could just remove the file to handle the problem. or move it aside. I'd like to know if there is a way to do it without touching the file. Not currently. There is the -x (--honor_guid2lid) which will do this (ignore the guid2lid file) when OpenSM is coming out of STANDBY though. -- Hal Thanks, Leonid On 05 Sep 2006 06:57:53 -0400, Hal Rosenstock [EMAIL PROTECTED] wrote: Hi Leonid, On Tue, 2006-09-05 at 03:30, Leonid Arsh wrote: Hi list, I have a question regarding the guid2lid cache file. The file is read by OpenSM on the start up. OpenSM may reassign LIDs according to the LIDs saved in this file. It isn't always acceptable. Is it a right policy? Am I missing anything here? Is there a way to disable the file reading on start up? There is the -r (--reassign_lids) option for this but it is not the default behavior of OpenSM. -- Hal Regards, Leonid ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] OpenSM - guid2lid cache file questions
Thanks, On 05 Sep 2006 08:46:22 -0400, Hal Rosenstock [EMAIL PROTECTED] wrote: I have a problem when OpenSM, being started, reads an out-if-date guid2lid file. OpenSM changes LIDs in this case. How do you know the file is out of date ? Actually, the LIDs were assigned by another SM. When I start my new OpenSM, the old SM is already dead. Before starting the new OpenSM, the ibnetdiscover utility shows LIDs different from ones in the file. When I start OpenSM, the LIDs are reassigned on the fabric. ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] OpenSM - guid2lid cache file questions
Leonid, On Tue, 2006-09-05 at 09:13, Leonid Arsh wrote: Thanks, On 05 Sep 2006 08:46:22 -0400, Hal Rosenstock [EMAIL PROTECTED] wrote: I have a problem when OpenSM, being started, reads an out-if-date guid2lid file. OpenSM changes LIDs in this case. How do you know the file is out of date ? Actually, the LIDs were assigned by another SM. Different (vendor) SMs have different LID assignment and pathing (routing) policies. It is inadvisable to failover across vendor SMs for this and other reasons. -- Hal When I start my new OpenSM, the old SM is already dead. Before starting the new OpenSM, the ibnetdiscover utility shows LIDs different from ones in the file. When I start OpenSM, the LIDs are reassigned on the fabric. ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] OpenSM - guid2lid cache file questions
Hi Leonid, The best approach when switching from another vendor SM to OpenSM is to delete the /var/cache/osm/guid2lid file. -Original Message- From: [EMAIL PROTECTED] [mailto:openib-general- [EMAIL PROTECTED] On Behalf Of Hal Rosenstock Sent: Tuesday, September 05, 2006 4:18 PM To: Leonid Arsh Cc: openib-general@openib.org Subject: Re: [openib-general] OpenSM - guid2lid cache file questions Leonid, On Tue, 2006-09-05 at 09:13, Leonid Arsh wrote: Thanks, On 05 Sep 2006 08:46:22 -0400, Hal Rosenstock [EMAIL PROTECTED] wrote: I have a problem when OpenSM, being started, reads an out-if-date guid2lid file. OpenSM changes LIDs in this case. How do you know the file is out of date ? Actually, the LIDs were assigned by another SM. Different (vendor) SMs have different LID assignment and pathing (routing) policies. It is inadvisable to failover across vendor SMs for this and other reasons. -- Hal When I start my new OpenSM, the old SM is already dead. Before starting the new OpenSM, the ibnetdiscover utility shows LIDs different from ones in the file. When I start OpenSM, the LIDs are reassigned on the fabric. ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
