Hi Nicholas,
In UNIX/Linux you have already MPIO build-in to the kernel and in RHEL/SLES you 
will only see one device.
In Windows you need to go back to your HBA manufactory website and download 
MPIO driver for Windows and when you install them one of your changer and 4 
drives will disappear.




Best Regards / Med Vänlig Hälsning
Christian Svensson
Products Specialist

Cristie Nordic AB
Visit Address: Knarrarnäsgatan 7, Kista Entre
Support, WW: +44-1453-84 7009
Support, US: +1-866-832-2267
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E-Mail: Christian.Svensson AT Cristie DOT se
Skype: cristie.christian.svensson
Visit Us@ www.cristie.com



-----Ursprungligt meddelande-----
Från: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] För Nicholas 
Rodolfich
Skickat: den 22 juli 2008 22:53
Till: ADSM-L AT VM.MARIST DOT EDU
Ämne: Weird duplicate device in Win2003 install

Hello All!

Thanks for your help!!

I am an old UNIX guy doing a Windows 2003 TSM 5.5.1 install.

I have an x3650 system with a TS3310 library (4 x LTO4) and a DS4700
storage array.

When I install the device driver for the library and boot the system, it
comes back with 2 medium changers and 8 drives in the device manager rather
than the 1 medium changer and 4 drives I really have. My SAN guy seems to
think that this is OK but I have never seen it this way in UNIX land. Could
it be that the zoning on the switch allows multiple paths to be seen by the
system and therefore it is trying to identify the same drive twice.  Should
I leave it this way. If not what is the solution?