Re: How do I spin up a SCSI disk after being hot swapped?

[Brian Murphy]

I think the issue here is that the kernel doesn't know you have added
a disk so you need to tell it. To do that you use the following command

echo "scsi add-single-disk a b c d">/proc/scsi/scsi

a is Host No (usually 0)
b is Channel (usually 0 or 1)
c is Device Id
d is LUN (usually 0)

with the values appropriate to your new device. If you added it
in the same position as a removed device then you need to run the
remove-single-disk with the same values before you run this command.
This works with my hot plug setup to spin up and make the device
accessible to the system.

Brian Murphy