Hi Tony,

The element number is the "internal address" of the library components
(slots, drives, I/O door, etc.)

The software uses those element numbers when it issues SCSI commands to the
robot.

They are fixed by the manufacturer, and you really have no choice in the
matter.

Two libraries with the same element numbers won't cause you any problems.

Wanda Prather
Johns Hopkins University Applied Physics Laboratory
443-778-8769

"Intelligence has much less practical application than you'd think" -
Dilbert/Scott Adams

-----Original Message-----
From: Tony Morgan [mailto:TONY.MORGAN AT FORTISBANK DOT COM]
Sent: Wednesday, March 03, 2004 8:09 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Attaching 2 identical tape libraries - element numbers


Hi List,

I have two ADIC Scalar100 tape libraries, called Scalar100 and Scalar101,
both attached to the same TSM Intel NT4 Server... Not ideal, but cheaper
than buying a bigger library.

I am not sure how best to configure the element numbers... does TSM
internally refer to a slot by library/element or just by element?   If the
latter, will I have to use a range outside of the prescribed 4096-4156?

I know that the low level addressing is by device id (LB0.0.0.1), but I just
want to ensure that the home_element being duplicated in libvolumes is not
going to cause any problems further down the line (other than my home made
reporting).

Your words of wisdom will be fully appreciated.

Best Regards

Tony Morgan
Fortis Bank UK

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