[CentOS] 3ware disk failure -> hang -- SCSI backplanes

[Peter Arremann]

On Friday 06 January 2006 19:49, Bryan J. Smith wrote:
> Peter Arremann <loony at loonybin.org> wrote:
> > SAF-TE is the furthest in that direction but also not even
> > close...
> > Ok - so you're referring so saf-te with your above statemts
> > or is there more?
>
> Well, SAF-TE is pretty anal-level, and it's more about
> enclosure and other details.  I'd have to fully research
> _what_ is exactly required -- at the SCSI card (probably not
> much), at the SCSI backplane (probably not much) and at the
> SCSI driver (there's the  majority of the beef ;-).
Most manufacturers I'm familiar with are using std. LSI, adaptec, whatever 
chips on the controller side. Drives are standard and I've just never seen 
ICs mounted on a internal backplane that had even close to enough pins to be 
attached to the scsi bus... many external enclosures support saf-te but 
saf-te does not provide you the level of information you were talking about.  
The point about failing devices/disconnects is specifically mentioned as not 
being a responsibility of saf-te.



> Now, case-in-point/back-to-original-focus:
Sorry - I should have marked that as off topic. It had nothing to do with my 
3ware/ata question :-) I was simply wondering what exactly I missed...

Peter.