Re: [ADSM-L] fibre channel question on 3592 tape drives

Agreed!

You define the path with the server device file (rmtX on aix).  On first access 
tsm will populate the drive with  all the specs of the drive (s/n, wwn, etc).  
You use the wwpn for zoning.  Check the switch port for a drive - use the wwn 
that is logged into the switch.

Rick



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Huebner, Andy
Sent: Thursday, October 23, 2014 11:57 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: fibre channel question on 3592 tape drives

We defined our drives using RMT names (AIX server).  WWNs are what we used to 
zone the drives on the SAN.  Our zoning tool (Cisco) does not really give you a 
choice on which name to use.

Does that help?

Andy Huebner

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Lee, Gary
Sent: Wednesday, October 15, 2014 12:21 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] fibre channel question on 3592 tape drives

I may have confused myself here.
Tsm server 6.2.5, rhel 6.1, ibm 3494 library and ts1120 drives.

If I issue a

Udevadm info -attribute-walk

For all /dev/IBMtapexx devices I get a listing of everything that can be 
determined about these drives.

When defining these drives to tsm, which do I use for the "wwn" parm?
Do I use ww_node_name, or ww_port_name?

I think it would be  ww_port_name, but just checking before I add more drives.
On some of them, both are equal, but others the node_name and port_name differ.
Thanks for the assistance.


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