just a DBA wrote:These RMAN commands are ONLY supported for the platform combinations listed in this note and are ONLY relevant for same endian combinations.
Thank you. But can you explain the following :
From RMAN 11.2 documentation:
"Even though the endian formats for the source and destination platforms are the same, the data files for a transportable database must undergo a conversion process. You cannot simply copy data files from one platform to another as you can when transporting tablespaces."
According to document 1079563.1 there is no need to do "convert database". What will be correct ?]
Also, another limitation appears (from 1079563.1) : "Note that the following platform combinations assume that the source database is created at the same version as the destination database (i.e. was not upgraded from a version prior to that listed in the heading for that combination)."Does it mean that primary database for mixed DataGuard also should be created as 11.2 and can't be the upgraded database from 10g ?
Does it mean that primary database for mixed DataGuard also should be created as 11.2 and can't be the upgraded database from 10g ?Versions are the same, but source database (Windows) was upgraded from 10g to 11g.
Yes, it measn you must use same version, same patchset oracle database 11g software. 10g is not supported.
If you upgraded success, then no problem.Please read the following from 1079563.1.
Because this feature is come with 11g.
just a DBA wrote:Hi,
Thank you for great help!
But the following is not yet clear: can we use cross-platform standby database if primary was upgraded from 10g ? Or DataGuard doesn't have such limitation as has RMAN ?
Does "switchover/activate standby" perform database convertion as "rman convert" ?Switchover only changes database roles. RMAN Convert is converting datafiles platform.
I think yes, we can use cross-platform standby database if primary was upgraded from 10g.Thank for answer.
and I think limitation only on RMAN, when we create standby database we are can't use DUPLICATE command for creation stnadby database.
Because support note says :
*"An upgraded database can still have blocks which are dependent on old formats and can elicit compatibility issues.
Thus, the database is required to be created at the same version as the destination database and not upgraded from a prior version."*
But we can create standby database with other ways (Transportable table space, copy data files via OS copy etc.).