[firebase-br] Dúvida ODS.

[Carlos H. Cantu]

New ODS Number

Firebird 3.0 creates databases with an ODS (On-Disk Structure) version
of 12. In the initial release, a database with an older ODS cannot be
opened by Firebird 3.0. In order to work with a database with an older
ODS it will be necessary to make a backup using gbak under the older
server and restore it with gbak on Firebird 3.

Note

A legacy provider for databases with ODS 8 to 11.2 is planned for a
future sub-release.

Firebird 3.0.4: ODS 12.2 for POSIX Platforms

In the V.3.0.4 sub-release we have a minor ODS change for databases
created or restored on a Linux x86 (32-bit) platform and all other
POSIX platforms including MacOSX. The new ODS for these databases is
12.2.

The change is due to a change in the page layout of the system table
RDB$GENERATORS affecting only some platforms. ODS 12.0 databases
copied across platforms, e.g., from Linux-x86 to Linux-x64, show wrong
values for generators, typically very large.

[]s
Carlos H. Cantu
eBook Guia de Migração para o FB 3 - www.firebase.com.br/guiafb3.php
www.FireBase.com.br - www.firebirdnews.org - blog.firebase.com.br

AVvl> Boa tarde senhores,
AVvl> estou com uma dúvida aqui com relação a ODS. Tenho um servidor Linux
AVvl> clonado. Fiz o backup em um deles e coloquei no segundo. Ao verificar as
AVvl> versões do ODS, no servidor original está 12.2 e no que copiei está 12.0.
AVvl> Apesar de estarem funcionando normalmente, gostaria de entender o porquê
AVvl> deste diferença e como corrigir.

AVvl> Muito obrigado.

AVvl> Alexandre.