> > Without fail, cfgadm changes the status from "disk" to "sata-port" when I
> > unplug a device attached to port 6 or 7, but most of the time unplugging
> > disks 0-5 results in no change in cfgadm, until I also attach disk 6 or 7.
> 
> That does seem inconsistent, or at least, it's not what I'd expect.

Yup, was an absolute nightmare to diagnose on top of everything else.  
Definitely doesn't happen in windows too.  I really want somebody to try snv_94 
on a Thumper to see if you get the same behaviour there, or whether it's unique 
to Supermicro's Marvell card.

> > Often the system hung completely when you pulled one of the disks 0-5,
> > and wouldn't respond again until you re-inserted it.
> > 
> > I'm 99.99% sure this is a driver issue for this controller.
> 
> Have you logged a bug on it yet?

Yup, 6735931.  Added the information about it working in Windows today too.

Ross

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