Seagate ST43401N/ND Guía de instalación descargar pdf (Pagina 137)

APPENDIX B Sample Migration Task Lists

129

3 Alter the

sybsystemprocs database.

4 Perform a pre-upgrade verification.

5 Upgrade the production system to Release 12.5.

6Run

dbcc commands (checktable, checkalloc, checkcatalog) on the

Release 12.5 databases. Be sure to verify the

dbcc log and error log.

7 “Baseline” the Release 12.5 configuration on the production system.

8 Perform user testing and verification.

Perform Final Steps

1 Start production users on the Release 12.5 production system.

2 Upgrade the test system to Release 12.5.

Staged Cutover Task Overview

This sample task overview covers a staged cutover migration approach to

rebuild Adaptive Server. The scenario for this task list is:

• The large company has a mature client/server environment with

multiple applications residing on a single server.

• In the event of failure, the company depends on nightly backups and

transactions dumps. The system cannot be down more than one hour

and cannot afford more than two hours of data loss.

• The environment includes development, test, and production

platforms. It requires enough space for duplicate servers on each

platform.

• The object-level rebuild strategy necessitates moving the data, which

requires system downtime for the target application.

Tasks

The high-level tasks in this scenario are:

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Seagate ST43401N/ND Guía de instalación Pagina 137