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[dm-devel] About WWID



Hello guys,

I noticed a difference with the WWID of a multipath device as reported
by the device mapper native multipath, and by the EMC propriatary tool
powermt. In the latter case it misses a leading 3 (which seems to be
an invariant prefix with the device mapper).

Exemple :

Reported by multipath -ll : 360001440000000102058055965f660d8
Reported by powermt :       60001440000000102058055965F660D8

My questions are : what means the leading 3 given by the device-mapper
and which one is the right WWID?

Thank you a lot ;)

-- 
Nicolas MICHEL


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