Hang on boot in isp with QLA2342 after upgrading to 6.3

[Graham Allan]

On Mon, May 12, 2008 at 12:14:04PM -0500, Graham Allan wrote:
> 
> It has been pointed out to me that this kind of weird interaction isn't
> exactly unknown in the SAN world, and setting up zoning on the switch
> would probably make it go away. So I will also try that (it's probably
> a giveway of a SAN novice that I hadn't already done so - it certainly
> does sound like it would help). But if the hang does point to a problem
> in the driver, I'm also happy to keep trying different things in the
> hope of revealing where the problem actually lies.

Replying to my own message here.

The good news for me is that setting up zoning in the switch does fix
(or at least hide) the problem on this server for me.

The bad news is, I believe I'm seeing a similar kind of behaviour on a
completely different 6.3 setup. Haven't had time to fully characterise
it yet, but in short... Dell 1950 with QLA2342, connected directly to
an EMC CX300 array. Very often (lets say unpredictably 50% of time)
hangs during boot at exactly the same point as the first system, right
around the time it would be probing for drives.

Graham