Thanks Alan, you triggered an old brain-cell.

A while ago I remembered a server that was having fits with its LVM, so the
Linux guy gave it new luns and re-build the LVM structures, copied the data
(as much as could be) - then clean up the old luns. But I remember an issue
in cleaning up and he may have been over zealous. Looking back through the
SAN Admin DB logs we have, they are in fact the ones causing issues.

So I have the server and FCPs that are the culprits.  And sure enough, they
were still there in /sys... (although lszfcp -D didn't report them)
 Sending the luns to unit_remove did the trick.

Wow - a fun adventure!  I wish there were an easier to find the right
trail, but it is solved now.

The SCSIDISC not reporting luns is a whole other issue...




-- *James Vincent*
-- President, SHARE Inc.
-- Calendar: http://tinyurl.com/JSVCalWeek
-- SHARE is an independent volunteer-led information technology association
that provides *education*, professional *networking *and industry
*influence*

On Mon, Feb 15, 2016 at 3:52 PM, Alan Altmark <[email protected]>
wrote:

> On Monday, 02/15/2016 at 08:36 GMT, James Vincent
> <[email protected]> wrote:
> > HCPRXS977I The utility LUN on WWPN 50000973001C8D9C and virtual FCP
> device
> > 00000101 could not be opened
> > HCPRXS976I WWPN 50000973001C8D9C on virtual FCP device 00000101 ignored
>
> MIF C in CSS 2 opened a connection to the LUN on a non-NPIV adapter and
> never closed it.  What you need is the subchannel (device number) that
> opened the connection.  That would lead you to the virtual machine.
>
> I would probably start with the firmware folks to find out how to
> determine the subchannel that has the connection open.
>
> NPIV makes this problem go away since each subchannel uses its own local
> WWPN.
>
> Alan Altmark
>
> Senior Managing z/VM and Linux Consultant
> Lab Services System z Delivery Practice
> IBM Systems & Technology Group
> ibm.com/systems/services/labservices
> office: 607.429.3323
> mobile; 607.321.7556
> [email protected]
> IBM Endicott
>
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