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Reality V15.0 ()

Transferring a Database (M6960CR_.htm)

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Transferring a Database

Introduction

When upgrading an older system running Reality, or migrating Reality data to a new platform, it is often necessary, or preferable, to create new Reality databases and transfer the data from the old system via a FILE-SAVE tape. This technique has the advantage that the data is defragmented and, if file reallocation parameters have been defined, files are resized at the same time.

The main steps in transferring a database are:

If the source is a Series 18/19, carry out a FILE-SAVE and VERIFY-SAVE to secure the database, then apply a patch as appropriate to the destination.
Secure any local customisation.
Carry out a FILE-SAVE and VERIFY-SAVE on the updated source database.
Customise the Reality configuration on the destination host.
Create a new database on the destination host.
Restore the last FILE-SAVE from the source system to the new database.
Run SYS-UPDATE on the new database to apply necessary updates to it.
If you have old applications that require it, configure the database to use the old upper-case date format
Carry out a FILE-SAVE and VERIFY-SAVE on the new database to secure it.
Start transaction processing on the new database if required, and enable logons.

The detailed steps depend on the source and destination systems, as described in the remainder of this document.