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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