Introduction
When upgrading an older system running Reality, or migrating Reality data to a new system or host platform type, 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. Also refer to the use of Automatic File Sizing which is now the default mode of operation.
Important Note
This Installation Guide applies to all releases of Reality, from original Reality hardware to the latest software versions running on all current host platforms.
The use of Fast Save, using a Physical Backup, can only be used when moving to the same host platform byte ordering (for example, from Intel to Intel, or from SPARC to SPARC), and where source and destination versions of Reality support this feature.
The main steps in transferring a database are:
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Secure any local customisation; for example, database configuration files and any host platform files like ROUTE-FILE and those from REALROOT.
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Load the latest updates for your current release and check recent FAQs, as available on the NEC Reality website.
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Carry out a FILE-SAVE and VERIFY-SAVE on the updated source database.
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Customise the Reality configuration on the destination host.
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Create a new database on the destination host.
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Restore the last FILE-SAVE from the source system to the new database.
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Run SYS-UPDATE on the new database to apply necessary updates to it.
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If you have old applications that require it, configure the database to use the old upper-case date format.
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Apply any MultiValue Environment settings as required.
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Carry out a FILE-SAVE and VERIFY-SAVE on the new database to secure it.
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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.
Important
Please review these Installation Guide notes carefully before you attempt any installation or upgrades. If you are in any doubt contact your support representative or NEC directly. Always make notes covering exactly what you do, step by step, during an installation or upgrade. If you find any issues with guidance, or ways to improve it, please feed this to NEC Helpdesk. This will help all Reality users with future upgrades.