Just a quick note… When Sun engineers look at you like you've got the plague for mentioning Sun Cluster and Solaris Express in the same breath…there's a reason. The reason is that your breath is indeed infected with a plague…one that'll cause your Solaris Express instance to spew core dumps and kernel panics like a freshman at a frat party.

Unsure what about Sun Cluster makes SXb41 crash uncontrollably, but the bug is not present in Solaris 10 6/06. It's truly a shame as mpathadm is an amazing tool  from build 41 I miss already. Mpathadm is by far the slickest, most well-designed storage multipathing utility I've had the privilege to use. If you don't need to run Sun Cluster I highly recommend running a current Solaris Express build. Mpathadm is worth it. You can fail MPXIO back and forth on a supported controller with the impunity of Superman
at a paper-mache convention.

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