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Oracle Apps DBA: Keeping E-Business Suite Alive · Module 14 · Upgrades and platform moves

The rehearsal, and how many you need

Lesson 145 of 184 · 3 min

The FIRST ONE FINDS THE ERRORS, the SECOND ONE FINDS THE TIMINGS, the THIRD PROVES THE RUNBOOK. SKIPPING TO ONE IS WHERE OVERRUNS COME FROM. Three rehearsals sounds excessive until you see what each produces, and each produces something the others cannot. THE FIRST FINDS THE ERRORS AND IT WILL BE CHAOTIC. Missing prerequisites, steps that fail, customisations that will not compile, things nobody knew were there — Lesson 3's inventory being tested against reality. It will not complete cleanly and that is not a failure of the rehearsal, it is the entire product of it. THE SECOND FINDS THE TIMINGS, AND IT ONLY WORKS BECAUSE THE FIRST REMOVED THE INTERRUPTIONS. A run that stops six times cannot be timed. This one runs through and produces the numbers the outage plan needs — per phase, not just a total, because Lesson 5's checkpoints need to know how long each stage

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In this module: Module 14 · Upgrades and platform moves

  1. 1Upgrade, migration, or move
  2. 2Why estates fall behind
  3. 3Assessing what an upgrade will touch
  4. 4The rehearsal, and how many you need
  5. 5Timing the outage
  6. 6The go or no-go decision
  7. 7Moving to a different platform
  8. 8Moving EBS to a cloud VM
  9. 9What breaks: three upgrade failures
  10. 10Lab briefing · Plan an upgrade you will not run
The rehearsal, and how many you need — Oracle Apps DBA: Keeping E-Business Suite Alive — MSAMM