vxdmp: The way the load balancing done is using round

robin approach

EMC Power path: It does it by knowing which path is

least loaded.

Powerpath will fail back a path once it becomes available.

The older version of DMP that we were using on Solaris you

had to manually bring back the other path. This could have

just been the limitations of Solaris as well. We ran Power

path on AIX and DMP on SUN.