[HECnet] Satellite configuration/NCP crash

[hvlems at zonnet.nl]

In a scsi cluster the cluster traffic is passed across another bus, like FDDI, ethernet (and possibly memory channel). That is the main difference between SCSI and DSSI. Likewise there is mo decnet over scsi as there is decnet over dssi (and the older CI)
------Origineel bericht------
Van: Peter Coghlan
Afzender: owner-hecnet at Update.UU.SE
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Satellite configuration/NCP crash
Verzonden: 15 september 2011 23:27


Unless youLre running an NI cluster. If PEDRIVER is loaded shutting the decnet circuit used by it must crash the node. 


I would have thought that shutting off decnet will not affect SCS
traffic. If it happend that it did, AND there were two or more nodes
in the cluster trying to communicate and failing, I would expect one
or more nodes that lost quorum to hang for RECNXINTERVAL seconds
(by default, 20). After that, one or modes might bugcheck with a
CLUEXIT exception.

A SSRVEXCEPT exception much more likely indicates something is wrong
with the software.

Regards,
Peter Coghlan.