The serial number of each drive should be the same regardless of which port
is in use (as should the WWNN, but not WWPN). If you name the OS devices for
the drives based just on serial number, you'll want to revise your naming
scheme.
On my AIX system, I rename the /dev/rmt<discovery number> devices to
/dev/rmt3592<library><drive number><path> where <path> is "a", "b", etc. I
alternate letters between SAN fabrics. I've done this with multiple
generations of 3590 drives with dual SCSI or FC paths (rmt3590foo1a and b),
and with multiple generations of 3592 drives with between 2 and 6 FC paths
(rmt3592foo1a through 1f, with a, c and e on fabric A and b, d and f on
fabric B). This is with the IBM Atape driver and multi-pathing enabled. I
haven't played with the IBMtape driver under Linux.
I name the drives in TSM the same way, without the "rmt" prefix or the path
suffix.
If you're planning to connect/zone the second ports to a second server for
your upgrade instead of the server where you're running TSM 5.5, and your
udev rules only specify the serial number for persistent naming and not the
WWPN, I'd guess you'll be OK using the same udev rules and naming scheme as
you're using now.
=Dave
On 01/17/2014 10:02 AM, Lee, Gary wrote:
Sh library shows the ports on the drives already in use. I need to see the
information for the unconnected ports.
Our IBM CE had told me before that serial numbers and wwpns are software
defineable on the drive. Just hoping that there was a way to get to these
values without connecting the second ports to a san.
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of
Chavdar Cholev
Sent: Friday, January 17, 2014 9:56 AM
To: [email protected]
Subject: Re: [ADSM-L] determining ts1120 serial numbers and wwpns
try
sh library
On 1/17/2014 16:50, Lee, Gary wrote:
Is there a way to determine the wwpn and serial number defined for each fc port
on a ts1120 drive without connecting it to a fc switch?
I have been through the 3592 operator's guide and have not found anything.
I am preparing for a tsm 5.5 to 6.2.5 upgrade. I would like to prerun cables
from the second ports on our ts1120 drives to the new fibre channel switch. I
also would like to create tsm macros to define drives and paths, and also
create udev rules to give the drives persistent device names.
I currently use serial number to determine how to name the drives.
Doing all this ahead of time wil make the upgrade a lot simpler.
Any help is appreciated.
--
Hello World. David Bronder - Systems Architect
Segmentation Fault ITS-EI, Univ. of Iowa
Core dumped, disk trashed, quota filled, soda warm. [email protected]
