How to determine the actual number of physical paths from "mpathadm show LU output" (Doc ID 1641940.1)

Last updated on NOVEMBER 02, 2016

Applies to:

Solaris Operating System - Version 10 3/05 and later
Information in this document applies to any platform.

Goal

During a datacenter upgrade,  4 physical paths to the storage array  were disconnected.
This caused unexpected IO errors to a critical LUN  their production system.

The customer asked:

mpathadm shows 8 paths to that lun:
What about the other 4 paths?
 

Solution

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