What Thomas said, only I think he meant to say "3584" everwhere he said "3484". 
 AFAIK, there is no such thing as a 3484.

We did a similar thing moving from an ADIC Scalar10K SCSI library to a 3584.  
As long as the new library has the same library name as the old library, TSM 
will be fine.

At 03:50 PM 5/22/2015, Thomas Denier wrote:
>The 3484 is a SCSI library with a mechanical design similar to that of a 3494. 
>In more recent times IBM has marketed the 3484 or a very similar successor as 
>the TS3500.
>
>We used to do what amounted to a 3494 to 3584 migration during disaster 
>recovery tests; our own system had a 3494, but our hot site vendor provided a 
>3584.
>
>I checked our old DR procedure. It does not cover the checkout operation, 
>since all the volumes available at the test had been checked out and sent to 
>an offsite vault at some point in the past. In outline the process was as 
>follows:
>
>Update 3494 tape drive paths to "online=no".
>Execute "define library" for the 3484.
>Execute the related "define drive" and "define path" commands (including 
>defining a path to the library).
>Update tape device classes to use the new library.
>Check volumes into the new library.
>Execute an "audit library" command with "checklabel=barcode" for the new 
>library.
>
>The device for the new server to library path will probably follow a 
>distinctly different naming convention than its 3494 counterpart.
>
>Most commands that refer to a library name need somewhat different operands 
>for a SCSI library  (such as a 3484) than for a 3494. You will need to review 
>any such commands executed as part of your automated housekeeping or as part 
>of manual procedures such as adding tape volumes.
>
>Thomas Denier
>Thomas Jefferson University
>
>-----Original Message-----
>
>We are looking at replacing our 3494 libraries with 3584s.
>Thinkk that is the correct number.
>
>Are they similar enough that I can simply check out the volumes from the old 
>libraries and check into the new?
>
>We are keeping our ts1120 drives and transferring them into the new robots.
>
>Anyone with experience doing this move?
>
>Thanks for any help.
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