Modules; Columns; Slots; Tape Drives - Quantum Scalar i500 User Manual

Modules

Library modules are represented by the first digit of a library coordinate. Modules are identified relative to
the control module.
The control module is numbered 0 (zero). Expansion modules stacked above the control module are
addressed with positive integer digits depending on their position above the control module. For example,
the expansion module stacked directly above the control module is number 1. The expansion module
stacked directly above module 1 is number 2, and so on.
Modules stacked below the control module are numbered with negative integer digits, also depending on
their relative position to the control module. For example, the expansion module stacked directly below the
control module is number -1. The expansion module stacked directly below module -1 is number -2, and so
on.

Columns

A storage column is a group of slots arranged vertically in the library. Columns are represented by the
second digit of a library coordinate. Columns are identified relative to the front left of the library. The column
in the front left of the library is number 1. The column numbering continues around the library in a clockwise
direction. The I/E station column is always number 6.

Slots

Fixed storage slots are represented by the third digit of the library location coordinate. Within each column,
slots are numbered from top to bottom, starting at 1. For example, in Figure 13 on page 76, the full location
coordinate of Slot 1 is 0, 1, 1.

Tape Drives

Tape drives are addressed first by module and then by tape drive bay within the module. The drive bays
within a module are numbered from top to bottom. A one-based numbering system is used. The full address
of a tape drive is in the form of [module,drive bay]; for example: [0,1], [1,3], [-1,2].

I/O Blades

Fibre Channel (FC) I/O blades are addressed first by module and then by I/O blade bay within the expansion
module. The blade bays within a module are numbered from top to bottom. A one-based numbering system
is used. The full address of a an I/O blade bay is in the form of [module,I/O blade bay]; for example: [1,1],
[-1,2].

Power Supplies

Power supplies are addressed as [module,PS#], where PS# is 1 for the left power supply and 2 for the right
power supply. The PS# is also etched on the module chassis, above each power supply.
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