234 Adding Optional Hardware
Drive Numbering Sequence
An example of the numbering sequence for drives is shown in Figure 23 below.
For information on the library’s coordinate system, see Storage Addressing System Overview
on page 132.
Gaps between drive locations are not supported. Drives must be added to each module in the order shown
in Figure 23
. The control module must be fully populated with 12 drives before adding any drives in the first
expansion module. The first expansion module must be fully populated before adding any drives to
additional expansion modules. Each additional expansion module must be fully populated before adding
any drives to subsequent expansion modules.
Figure 23 Drive Sled Positions
1,1,1,12,1,1
1,1,1,11,1,1
1,1,1,9,1,1
1,1,1,8,1,1
1,1,1,7,1,1
1,1,1,10,1,1
1,1,1,6,1,1
1,1,1,5,1,1
1,1,1,3,1,1
1,1,1,2,1,1
1,1,1,1,1,1
1,1,1,4,1,1
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