Messages in this thread |  | | Date | Wed, 02 May 2001 13:50:50 -0400 | From | Doug Ledford <> | Subject | Re: Linux Cluster using shared scsi |
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Mike Anderson wrote: > > Doug, > > A question on clarification. > > Is the configuration you are testing have both FC adapters going to the same > port of the storage device (mutli-path) or to different ports of the storage > device (mulit-port)? > > The reason I ask is that I thought if you are using SCSI-2 reserves that the > reserve was on a per initiator basis. How does one know which path has the > reserve?
Reservations are global in nature in that a reservation with a device will block access to that device from all other initiators, including across different ports on multiport devices (or else they are broken and need a firmware update).
> On a side note. I thought the GFS project had up leveled there locking / fencing > into a API called a locking harness to support different kinds of fencing > methods. Any thoughts if this capability could be plugged into this service so > that users could reduce recoding depending on which fencing support they > selected.
I wouldn't know about that.
--
Doug Ledford <dledford@redhat.com> http://people.redhat.com/dledford Please check my web site for aic7xxx updates/answers before e-mailing me about problems - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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