Forum Discussion
I've seen a few times when Device Manager says it can see something, but in fact it cannot.
Personally, I'd delete the devices from Windows completly, then reboot. If the devices 'come back' in device manager, that's good enough to confirm they really are visible.
It doesn't mean they are repsponding correctly, so visible in device manager, doesn't suddenly mean the blame is on NBU - as SDO correctly asks, what does the scan command show ???
scan only sends scsi commands to the devices seen by the OS, Device Manager does something similar - so if Device Manager isn't working, I would first expect to see scan fail as well (this is what is usually found).
If scan works, then as Michael suggested, we could be looking at a comms type of issue somewhere.
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