Forward recovery logging ........215
Forward recovery ...........216
Recovering VSAM spheres with AIXs ....217
An assembler program that calls DFSMS callable
services ...............218
Chapter 19. Disaster recovery ....223
Why have a disaster recovery plan? ......223
Disaster recovery testing .........224
Six tiers of solutions for off-site recovery ....225
Tier 0: no off-site data .........225
Tier 1 - physical removal ........225
Tier 2 - physical removal with hot site ....227
Tier 3 - electronic vaulting ........227
Tier 0–3 solutions ...........228
Tier 4 - active secondary site .......229
Tier 5 - two-site, two-phase commit .....231
Tier 6 - minimal to zero data loss......231
Tier 4–6 solutions ...........233
Disaster recovery and high availability .....234
Peer-to-peer remote copy (PPRC) and extended
remote copy (XRC) ..........234
Remote Recovery Data Facility ......236
Choosing between RRDF and 3990-6 solutions 237
Disaster recovery personnel considerations . . 237
Returning to your primary site ......238
Disaster recovery facilities .........238
MVS system logger recovery support ....238
CICS VSAM Recovery QSAM copy .....239
Remote Recovery Data Facility support....239
CICS VR shadowing ..........239
CICS emergency restart considerations .....239
Indoubt and backout failure support ....239
Remote site recovery for RLS-mode data sets 239
Final summary .............240
Part 4. Appendixes ........241
Notices ..............243
Trademarks ..............244
Bibliography............245
CICS books for CICS Transaction Server for z/OS 245
CICSPlex SM books for CICS Transaction Server
for z/OS ...............246
Other CICS publications..........246
Accessibility............247
Index ...............249
vi
CICS TS for z/OS 4.1: Recovery and Restart Guide
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