StorageTek Host Software Component 6 User Manual

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10   VM/HSC 6.0 System Programmer’s Guide
1st ed., 6/30/04 - 312579601
HSC and Automated Cartridge System Interaction 
After the HSC is started and the tape management system (TMS) service machine has 
begun a dialog, mount or dismount requests are processed from the TMS, and the library 
control data set is used to determine the location of the requested cartridge 
(library-controlled or nonlibrary). 
The library control data set is created on a DASD volume when you perform a data set 
initialization during installation. Figure 4 on page 14 shows that it is necessary to share the 
control data set between all hosts requiring access to the library.