Dell PowerVault ML6000 - Manual (Page 37)

Chapter 3 Description
Understanding the Location Coordinates
Dell PowerVault ML6000 User’s Guide 37
Modules 3
Library modules are represented by the first digit of a library coordinate.
Modules are identified relative to the 5U Library Control Module.
The 5U Library Control Module is numbered 0 (zero). 9U Library
Expansion Modules stacked above the 5U Library Control Module are
addressed with positive integer digits depending on their position above
the 5U Library Control Module. For example, the 9U Library Expansion
Module stacked directly above the 5U Library Control Module is number
1. The 9U Library Expansion Module stacked directly above module 1 is
number 2, and so on.
Modules stacked below the 5U Library Control Module are numbered
with negative integer digits, also depending on their relative position to
the 5U Library Control Module. For example, the 9U Library Expansion
Module stacked directly below the 5U Library Control Module is number
–1. The 9U Library Expansion Module stacked directly below module –1
is number –2, and so on.
Columns 3
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 3
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 11 on page 36, the full
location coordinate of Slot 1 is 0, 1, 1.
Tape Drives 3
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].