[ofa-general] ofed 1.3.2 opensmd failover

[Hal Rosenstock]

On 8/25/09, kovlensky at interia.pl <kovlensky at interia.pl> 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
>
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