Strange problem with fastT700

[polani]

Dears ,
We have fastT700 storage subsystem which is working in direct managed subsystem.
The storage manager software is installed on an AIX box.We define three raid arrays and assigned to three AIX boxes.
Every AIX box has two FC adapters.
Now the problem is that at certain instances , vg commands like varyoffvg , varyonvg hangs on FAST raids and on FAST manager software error appears saying that logical disk is not on its preferred path.
when we redistribute the logical disks , every thing becomes ok but then once again after some time abnormality reappears.
Now my question is that why this is happening as there is no hardware errors on FASTt700 controllers.
please advice!
Polani

Here comes polani Once again!!!

P690 Certified Specailist
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[MBragg]

This may not help but in Windows you need an RDAC driver if you have multiple paths. Does AIX have the same thing?

 

[paulw]

Our expaeriance with local IBM Storage support is that firmware levels etc are important, I would suggest you look at loading latest Firmware ETC to the Fast and also look at the hard disk firmware levels