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[Linux-cluster] importing/unimporting GNBD devices on CentOS5.1



I've looked all over the the Redhat docs and in the various packages, and I can't find a single example of GNBD devices being _automatically_ imported/unimported (ala gnbd-client) on the Redhat Cluster system (as opposed to toy examples using gnbd_import directly without an init.d script).

Additionally, after poking at manually mounting and unmounting GFS + LVM on GNBD + multipath for a while, I discovered that the clvmd init.d script fails to deactivate active LVs on a clustered VG before trying to deactivate the clustered VG (which, understandably, makes the LVM system unhappy, which in turn makes "gnbd_import -R" very unhappy when it comes time to unimport the GNBD devices.

Am I missing something? Is there something buried deep in the clustering system that is activates GNBD devices and deactivates LVs at the appropriate times?

--
Benjamin Franz

 I don't think it's a good idea to follow the catalog's suggestion to force
 the "Double Helix" on your biologist friends, or the "Wavelength" on your
 physicist friends. They have access to virulent pathogens and liquid
 nitrogen, and I just know it will end in tears before bedtime.
                            - Verzoeking, LiveJournal Entry, 22 Nov 2005


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