Windows 2008 fails to reconise boot device

Ok here is a strange on I recently setup  Cisco UCS bladeserver to see storage on a VMAX 20k and this could see the storage correctly etc

We then plate spun a boot image to one of the disc on the system and attempted to boot the system

It failed to reconise the boot device and checks of the login for the single FA  assigned showed it as not logged in even though plate spin obviously could see the devices prior to the cut over it as it successfully copied the boot image, but once on the blade it failed to login to the Fa at all

Ok we say maybe it a problem with the array FA and port setting etc but here we swapped not only once but twice to other FAs and only on the second attempt to a FA with a previous Windows 2008 server booting off it did it reconise the path and the boot device

Once the server booted however we can see it logged in to the orginal FA correctly

Ok we say port setting are to blame and there must be a differnece betwen the two.

So we do a copy of the actual port settings between the working FAs setting and the orginal and then try to re-piont the boot devices via the orginal FA but it still it fails to reconise or login to the array FA when using this orginal path

Ok one failed FA we could say was possible but not two

Has anybody seen this where all  the port settings and symcfg -sid xxx -fa  command and details are indentical and even doing a copy of the setting between a working FA and a non working FA will not fix the issue

Have i missed anything

According ot the elab all the setting set at the FA level are those required for Windows 2008 64 bit and as stated they are indeintical to the set on the FA were we could get it to boot