afacli diagnostic boot params

Hi, we are having some problems with a PowerEdge 4600 and PERC3/Di RAID
controller. The controller seems to be locking up or otherwise timing
out. We're using RedHat Advanced Server 2.1. The controller sometimes
does this at boot up before ever getting to the first stage boot loader.
It happens after the perc controller POSTs and before it lists the
containers. Other times it will happen after the OS is booted, when
there's heavy load such as creating a new tablespace data file in
Oracle. In this case the machine becomes unresponsive, the load goes up
to about 20, and eventually after 10 minutes or so, the kernel panics in
an interrupt handler. We're using kernel 2.4.9-e16smp.

I've talked to Dell tech support but we haven't found the root cause
yet. I'm trying to figure out what we can do to get more information
about what is causing the problem. The docs for the afacli mention the
diagnostic boot-params, but they don't give a list of them and I can't
find a list anywhere on the net. Does anyone have information on some
boot-params that would be of use to me in debugging this issue? I'm
thinking there's something like the diag-switch? in OpenBoot on sparcs.


Thanks for any help.
-Kelly
-- 
Kelly Campbell <[email protected]>

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