HP 3000 Manuals HP 3000 Manuals
Planning During planning, the team defines migration schedules and strategies for migrating each application and database. If application will be migrated in phases, the strategy describes those phases. FastLane 3000 is a Hewlett-Packard tool for developing a migration plan. MPE/iX has two environments, Compatability Mode (CM) and Native Mode (NM). The Switch subsystem enables mixed-mode operation, allowing applications to switch between the two environments. Often, applications are moved to CM as an intermediate step, and then moved to NM in phases. CM is designed to provide code and data compatible to MPE V/E; it is usually easiest to migrate MPE V files to CM. NM is the native environment for MPE/iX; it is usually more productive to move to NM. A migration strategy for a particular application could specify which portions of the application will execute in CM, NM, or mixed mode. For example, one phased migration plan might be: 1. Move all code and data to CM. 2. Test and verify that they meet or exceed performance expectations. 3. Recompile selected portions in NM with CM data alignment options. 4. Modify applications to access NM 32-bit data.