> With multipath set up to access a SAN with some number of LUNs
> and for this question 2 paths set for round robin, how can the
> I/O stats be seen/gathered to see the throughput on each path
> and how balanced the I/O is?
I think we can do this. multiptha -l tells you what disks are combined to form a mapper path. Then you can use iostat to check I/O stats of each disk along with each mapper. It won't be hard to write a shell script to re-print the lines of iostat nicely, grouping the lines of the disks under their respective mapper path.
Yong Huang
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