lemons_terry@xxxxxxx [lemons_terry@xxxxxxx] wrote:
> Hi
>
> I want to have multipath manage only the CLARiiON LUN that I boot from (LUN 0). So I know that I can specify the following in /etc/multipath.conf:
>
> blacklist {
> wwid *
> }
> blacklist_exceptions {
> wwid nnnnnnnnnn
> }
>
> The wwid value is different for every CLARiiON LUN. So, if I want to automate the process of adding the 'wwid' value to the blacklist, what utility can I use to specify a LUN number, and find the WWN of the LUN?
>
> Thanks!
> tl
lsscsi, lists all your SCSI devices. It should have LUN number and
device name. You can use scsi_id to get WWN. lsscsi uses "sysfs" file
system (/sys/class/scsi_device/ etc), so you should be able to write
your own to suite your exact needs.
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