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9-4

SCSI REFERENCE 1014826

CHAPTER 9—MODE SELECT (15h)

Assigning Element Addresses

An element is a way of classifying various components in the library. Element

addresses reference specific physical locations in the library. All of the libraries

contains these element types:

 Cartridge loader (medium transport) element

 Cartridge cells (storage) elements

 I/E port (import/export) elements

 Tape drive (data transfer) elements

Each element requires an address so that it can be identified during a SCSI

command operation. The library has default addresses assigned to each

element. Ta b l e 9 - 2 lists the default element address for the first element type in

the library.

See “Element Addresses” on page 2-3 for important addressing

information.

If you want to change the addresses of the library’s elements, use the Element

Address Assignment page. In this page, you assign a starting address for each

element type (cartridge loader, cartridge cells, I/E port, and tape drive) and

then specify the total number of elements of that type. Since there is only one

cartridge loader, the starting address you specify for this element is the only

address for that element. The element addresses for the cartridge cells are

numbered consecutively, with the first address being the starting element

address that you specify.

Because the library supports the saved page function, you can save the

element address values by setting the SP bit in the CDB to 1. These values

configure the library upon power-up or a reset condition.

Table 9-2 Default element addresses for each element in the library

Element Default Starting Address

First Storage Element 1 (01h)

First Data Transfer Element 81 (51h)

First Medium Transport Element 97 (61h)

First I/E Port Element 113 (71h)

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 263 264

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Quantum LTO 2U Betriebsanleitung Seite 100