Mark,

You're correct that there is only an element number in one place.  However,
there should be paths defined (on the library manager server) as follows:

one path to the library for the library manager server
one path to each drive for each library manager client and the server

I suspect that all these paths are not defined, or not defined correctly.

The data flows from the library client server directly to the tape drive,
as determined by the paths you have defined for that tape drive and server
(defined on the library manager server).

Device "tape4" on one system may not refer to the same physical tape drive
as "tape4" on another system.

Basically, the library manager server is mounting the tape on a drive, then
telling the library client server that it's mounted, but the library client
server is looking for it on a different drive.

..Paul


At 12:33 PM 10/2/2008, Mark Stapleton wrote:

From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
Of Paul Zarnowski
>Double check your element numbers and paths to the drives.  Make sure
you
>have a path defined for each drive to each library-client server.

There are no drive definitions for the "remote" library in the library
client, and therefore no element numbers or paths to check. There is a
path in the library manager that connects each of the tape drives to the
library client, and as I mentioned there is obviously some communication
going on.

Here's another question that has been asked...

When a library client sends migrated data from disk to a tape drive
managed by a library manager, does the data flow on fiber from the
client to the tape drive directly, or does it flow across the LAN from
the client to the manager, and then on fiber from the manager to the
tape drive?

--
Mark Stapleton (mark.stapleton AT cdw DOT com)
CDW Berbee
System engineer
7145 Boone Avenue North, Suite 140
Brooklyn Park MN 55428-1511
763-592-5963
www.berbee.com

--
Paul Zarnowski                            Ph: 607-255-4757
Manager, Storage Services                 Fx: 607-255-8521
719 Rhodes Hall, Ithaca, NY 14853-3801    Em: psz1 AT cornell DOT edu