Mainframe tape processing has evolved over the last five decades from the prevalence of labor-intensive manual tape processing to Automated Tape Libraries (ATL) and Virtual Tape systems (VTS). Virtual tape systems have further increased efficiency by eliminating the need to write to physical tapes at all, instead writing tape data to "virtual" volumes in a disk cache. At a later time these virtual volumes are consolidated and stacked on physical tape volumes and exported from the virtual tape system for disaster recovery or other purposes. CA TLMS has supported each new phase in tape technology as it has been introduced and will continue to support the latest tape media types, robotics, and virtual tape systems.
Automated Tape Libraries and Virtual Tape systems are now the standard in most installations. Customers have adopted ATLs for the following benefits:
The introduction of virtual tape extended these benefits by also providing:
These benefits have driven the acceptance of robotics and virtual tape systems as the standard for efficient tape processing today.
This section is organized by tape library vendor for both virtual tape and basic ATLs. Note that the terms ATL, library, and robot will be used interchangeably in this section. No difference between the terms is intended.
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