Re: 64-bit SCSI LUN addressing on Linux

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>Yeah, people tend to say LUNs when they mean storage devices a lot,
>so I've started to look over the slight misuses if things make sense
>otherwise.

We all have to do that, because the vast majority of people who are not 
storage engineers, and a disturbing portion of people who are, mean LU (or 
storage device) when they say LUN.  But we shouldn't compound the problem 
by not pointing out the mistakes; people deserve to know there's a clearer 
way to say what they're trying to say.  In many contexts, I have been 
genuinely confused as to whether a person was talking about a LUN or  a 
LU.  "LUN discovery," for example is a much simpler problem than the more 
general problem of LU (or volume or device) discovery.  I end up having to 
do a meta-analysis of which language the author is most likely to be 
speaking.  In the current discussion, we have the phrase "64-bit SCSI LUN 
addressing," which does sound a whole lot like it's about 64 bit LUNs. 
Only when you look closely do you see that decoded the other way, it makes 
more sense.

--
Bryan Henderson                     IBM Almaden Research Center
San Jose CA                         Filesystems

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