>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.
Sorry, but doesn't scsi_id only return what it finds in SCSI VPD pages
80 or 83? Not all devices provide a WWN in VPD page 83.
tl
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