Forgive me for being a bit wooly with this explanation (I've only recently 
moved over from Windows), but changing disk mode from IDE to SATA may well not 
work without a re-install, or at the very least messing around with boot 
settings.  I've seen many systems which list SATA disks in front of IDE ones, 
so you changing the drives to SATA may now mean that instead of your OS being 
installed on drive 0, and your data on drive 1, you now have the data on drive 
0 and the OS on drive 1.

You'll get through the first part of the boot process fine, but the second 
stage is where you usually have problems which sounds like what's happening to 
you.  Unfortunately swapping hard disk controllers (which is what you're doing 
here) isn't as simple as just making the change and rebooting, and that would 
be just as true in Windows.

I do think some solaris drivers need a bit of work, but I suspect the standard 
SATA ones are pretty good, so there is a fair chance that you'll find hot plug 
works ok in SATA mode. 

Ultimately however you're trying to get enterprise kinds of performance out of 
consumer kit, and no matter how good Solaris and ZFS are, they can't guarantee 
to work with that.  I used to have the same opinion as you, but I'm starting to 
see now that ZFS isn't quite an exact match for traditional raid controllers.  
It's close, but you do need to think about the hardware too and make sure that 
can definately cope with what you're wanting to do.  I think the sales 
literature is a little misleading in that sense.

Ross
 
 
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