Contents

List of Examples

List of Figures

List of Tables

Title and Copyright Information

Preface

• Audience
• Documentation Accessibility

1 What is Virtual Library Extension?

• VLE Hardware and Software
• Single Node VLE Configuration
• Multi-Node VLE Systems
• VLE to VLE Data Transfer
• VTV Encryption
• VTV Deduplication
• Early Time To First Byte (ETTFB)
• Frame Size Control

2 Configuring the MVS Host Software

• Key Configuration Values
  • Subsystem Name
  • VTSS Ethernet Port Addresses
  • IP Addresses of VLE Ports for Host (UUI) Communication
  • VMVC Volsers
  • VMVC Reclamation Threshold
  • VTV Deduplication
  • Early Time to First Byte (ETTFB)
• MVS Host Software Configuration Tasks
  • Acquire the ELS supporting PTFs for VLE 1.4
  • Updating the SMC OMVS RACF Security Entry
  • Modifying the SMC SCMDS file
  • Updating the VTCS CONFIG Deck to Define VLE
    • Specifying the Reclamation Policy for VMVCS
  • Defining the VLE VMVCs to the MVS Host Software and Including VMVCs in an MVC Pool
    • Creating VMVC Volume Pools (7.0 and Above)
  • Updating the MVS Host Software Policies
    • Creating Storage and Management Classes for VLE
    • FROMLST Parameter Use
    • Routing Data to VLE