powerpath ve errors

unlic means unlicensed, has the licensed been installed ? The errors could be many things: port on array/hba went offline, problems with cable.  If these errors continue to increment you need to start looking at what's going on.

trying to get this to work. I need to install Rtools on centos 5.5 but it says this package requires RHEL 5.

any idea how to get around this to get it installed on centos?

do you have to use RH? How about a windows box ?

http://virtualgeek.typepad.com/virtual_geek/2009/07/howto-download-install-and-license-emc-powerpathve.html