How do I check the number of dmp paths on disks in veritas?
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To check the number of device paths to a particular disk with veritas, that uses dynamic multi-pathing (DMP), run the following command:
# vxdmpadm getdmpnode nodename=c4t0d0s2 NAME STATE ENCLR-TYPE PATHS ENBL DSBL ENCLR-NAME ========================================================================= c4t0d0s2 ENABLED FAS960 8 8 0 FAS9600
Under paths you can see 8 paths. Each LUN has 4 devices paths, if you have two fibre channel cards, and each fibre channel card has two ports, that makes 4 ports, in total, hence 4 device paths. The other 4 device paths to make up 8 comes from the other controller, in the case above this is "c5".
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