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Lots of data on Google for this.
You can remove/add scsi devices at different levels. You can always
remove (unload) the module for the SCSI/FC driver and reload it as long
as you take care of all the dependencies.
You can be far more precise with /proc/scsi/scsi for removing a device
with:
echo "scsi remove-single-device #1 #2 #3 #4" > /proc/scsi/scsi
where:
#1 = controller number
#2 = channel number
#3 = SCSI id
#4 = LUN number
and to add if you know all the particulars:
echo "scsi add-single-device #1 #2 #3 #4" > /proc/scsi/scsi
If you are running a 2.6 kernel version of redhat (RHv4 or v5), you
can also use the /sys/class/scsi_host/host#/ routines.
There may be needed tasks performed in /etc/modprobe.conf or /etc/modules.conf
as well as making a new boot image (initrd with the command mkinitrd). These
changes do require a reboot.
Thanks
Peter
Peter DrakeUnderkoffler
Xinupro, LLC
617-834-2352
Paul Keating wrote:
> Hey Folks.
>
> First foray into enterprise linux using RHEL.
>
> when adding or removing tape devices, can you add new, or cleanup
> disconencted devices in any sane way?
> I've been rebooting to see new devices, or if presenting new and
> disconnecting old, it looks like the old dev files are hanging around in
> addition to the new ones being created.
>
> ??
>
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