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List of Figures
1-1 Recovery Point Objectives
1-2 RPO at Synchronization Point
1-3 RPO Between Synchronization Points
1-4 FD-HA Physical Tape Configuration
1-5 D-HA VSM N-plexing Configuration
1-6 D-HA VSM Cluster Configuration
1-7 D-HA Extended Cluster Configuration (offsite vaults not shown)
1-8 D-HA VSM Cross-Tapeplex Replication Configuration
1-9 Production Cluster with Remote Cluster Node VTSS2 at DR Test Site
1-10 Production Configuration with VTSS2 Loaned for CDRT DR Testing
1-11 Symmetric Production CTR Cluster for DR Testing
4-1 ELS CTR Configuration
4-2 Intra-Site VTV Volume Relationships
4-3 CTR Configuration
4-4 CDS Copy - No LPARs at Remote Site
4-5 System During Business Continuance
4-6 Disaster Recovery Testing Using Cross-Tapeplex Replication
5-1 RTDs Operating Under a Remote TapePlex
6-1 Uni-Directional Clustered VTSS
6-2 Bi-Directional Clustered VTSS
6-3 ESCON/FICON CLINKs for Bi-Directional Clustered VTSSs
6-4 Basic Extended Cluster Configurations
6-5 TCP/IP Environment with Two VSM5s
7-1 Spare VTSS Configuration - Before Running the DRTEST Utility
7-2 Spare VTSS Configuration - After Running the DRTEST Utility
7-3 VTSS Takeover Configuration - Before Running the DRTEST Utility
7-4 VTSS Takeover Configuration - After Running the DRTEST Utility
7-5 Real-Only Configuration - Before Running the DRTEST Utility
7-6 Real-Only Configuration - After Running the DRTEST Utility
7-7 Primary/Secondary Clustered VTSS Configuration - Normal Operations
7-8 Primary/Secondary Clustered VTSS Configuration - During Test
7-9 VLE and ACS Configuration - Before Running the DRTEST Utility
7-10 VLE and ACS Configuration - After Running the DRTEST Utility
7-11 VLE Only Configuration - Before Running the DRTEST Utility
7-12 VLE Only Scenario - After Running the DRTEST Utility
7-13 Primary/Secondary Clustered VTSS Tapeless Configuration - Before Running the DRTEST Utility
7-14 Primary/Secondary Clustered VTSS Tapeless Configuration - During Test
8-1 VSM System Recovery Points Example (Local and Remote)
A-1 Dual ACS Uni-Directional Clustered VTSS Configuration
A-2 VSM4 with 8 VCF Cards, 8 Host Ports, FICON Directors for 8 RTDs, 4 CLINK Ports
A-3 Dual ACS Bi-Directional Clustered VTSS Configuration
A-4 VSMPR1 - VSM5 with 8 VCF Cards, 8 Host Ports, FICON Directors for 24 RTDs, 4 CLINKs
A-5 VSMPR2 - VSM5 with 8 VCF Cards, 8 Host Ports, FICON Directors for 24 RTDs, 4 CLINKs
A-6 Basic Extended Cluster Configurations
A-7 Clustered VSM5s with TCP/IP CLINKs
A-8 VSM5 to VSM6 Cluster with TCP/IP CLINKs, Cross-Connected VLEs
A-9 VSM6 to VSM6 Tapeless Cluster with TCP/IP CLINKs
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