Alberto Alonso wrote:

On Thu, 2007-11-01 at 15:16 -0400, Doug Ledford wrote:

quoted

Not in the older kernel versions you were running, no.

These "old versions" (specially the RHEL) are supposed to be
the official versions supported by Redhat and the hardware 
vendors, as they were very specific as to what versions of 
Linux were supported. Of all people, I would think you would
appreciate that. Sorry if I sound frustrated and upset, but 
it is clearly a result of what "supported and tested" really 
means in this case. I don't want to go into a discussion of
commercial distros, which are "supported" as this is nor the
time nor the place but I don't want to open the door to the
excuse of "its an old kernel", it wasn't when it got installed.

It may be worth noting that the context of this email is the upstream linux-raid
 list. In my time watching the list it is mainly focused on 'current' code and
development (but hugely supportive of older environments).
In general discussions in this context will have a certain mindset - and it's
not going to be the same as that which you'd find in an enterprise product
support list.

Outside of the rejected suggestion, I just want to figure out 
when software raid works and when it doesn't. With SATA, my 
experience is that it doesn't.

SATA, or more precisely, error handling in SATA has recently been significantly
overhauled by Tejun Heo (IIRC). We're talking post 2.6.18 though (again IIRC) -
so as far as SATA EH goes, older kernels bear no relation to the new ones.

And the initial SATA EH code was, of course, beta :)

David
PS I can't really contribute to your list - I'm only using cheap desktop hardware.