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Examples

M&M Data Migration arc42 section 7

Deployment View

Deployment view: migration on two separate servers

The entire migration takes place on a dedicated Linux server (migration-2), on which several parallel instances of the actual migration components (Packager and Rule Processor) run inside an EJB container.

A fast bus connects this server to the database server (migration-1), on which the VSAM Reader and the Segmentizer perform the initial filling of the migration database.

Surprising, but decided this way by the client: the tape drives holding the VSAM files produced by the existing mainframe are attached to server migration-2.

Note: in a real architecture documentation you should describe further performance data of the hardware here (machines, networks, bus systems and so on).