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AIX  LUN ID mapping question

Posted on 2015-01-12
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Last Modified: 2015-01-28
Hello,

We have AIX servers and LUN is mapped to both hosts, but how I can verify from both LPARs? I don't have access to VIO server, but I want to make sure that LUN is assisble from both server.
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Question by:mokkan
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by:mokkan
ID: 40545035
IF I do  lattr  -EL   hdiskX and if  the PVID numbers are same, it means  lun is shared in both servers?
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woolmilkporc earned 500 total points
ID: 40545209
If the volume in question already has a PVID and if this ID is the same on both LPARS then you can be very sure that it's the same "real" disk (LUN), because PVIDs are unique.
Instead of "lsattr" you can simply use "lspv", by the way.

Without such a PVID being present (and without the possibility to create one)  and without access to the VIOS it's impossible to assure that two given virtual entities actually represent the same real entity!
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Author Closing Comment

by:mokkan
ID: 40575478
Thank   you.
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