Partitioning—Feature
96122 • Revision: F Appendix B Partitioning Overview 247
■ For common CAPs, one or more partitions can share those CAP slots not
designated as split assigned.
■ For split assigned CAPs, several configurations are possible. For example, the 4-
slot CAP in a base module could be split assigned to Partition 1; the top four
slots in the drive expansion module’s CAP could be split assigned to Partition 2;
the bottom four slots in the drive expansion module’s CAP could be split
assigned to Partition 3, and so forth. To fulfill the mixed definition, however,
there must also be common CAP slots available.
The CAP Button—Its Function in Partitioned Libraries
A significant difference between a non-partitioned library’s CAPs and those of a
partitioned library must be noted. For a non-partitioned library, pressing the CAP
button opens all CAPs that are configured as CAPs. In a partitioned library, each
partition must first have its CAP selected, using the operator panel or StreamLine Library
Console. This will dedicate the CAP button to the use of those partitions that selected a
CAP or CAPs for operation. After selection, pressing the CAP button will open only
the CAP doors assigned to that partition.
If not selected by any partition, pressing the CAP button will open only those CAP
slots that are split assigned (see the note on page 245).
An important thing to remember is that if multiple partitions are assigned to the
same CAP slots (that is, common slots)—and that CAP is selected for use by one
partition—the CAP import/export operation must be completed and the new
partition assignment made, before another member of that partition can gain access
for CAP operations.
Partitioning—Problem Scenarios
This section describes problems that may arise in partitioned libraries. Generally
speaking, customers who use the partition feature must:
■ Know the partition boundaries
■ Know the CAP assignment characteristics for each partition
■ Select a CAP before performing a CAP operation
■ Complete the CAP operation in order to release the CAP to other partitions. As
a safeguard, a CAP will not open to expose a cartridge that belongs to a partition
that has not selected the CAP.
Cartridge Importing
The customer wishes to import a cartridge into a partitioned library’s CAP. The
operator presses the CAP button, but no CAP doors open.
■ In this case, a CAP owned by that partition was not selected through the
operator panel or StreamLine Library Console. In partitioned libraries, CAPs
must be assigned to a partition.
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