How to Force Flashback Logs to Grow

Hi, I want to test RMAN and Oracle's handling of disk space over time as a database is used, specifically flashback logs.
For this I want to increase the size of the flashback logs and see oracle delete the old flashback logs as the sizes grow. Is there a way to force the flashback logs to grow? Or at least an efficient way to do it? I know flashback logs are block level deltas of my datafiles but I don't want to modify the entire database to generate flashback data.
Thanks

Hi,
Is there a way to force the flashback logs to grow? Or at least an efficient way to do it? I know flashback logs are block level deltas of my datafiles but I don't want to modify the entire database to generate flashback dataThe size of flashback logs generated by the database for a given time period can vary considerably, however, depending on the specific database workload.
When flashback is in use, a before image of each block that is updated is copied to the flashback log ; this only needs to be done once since no matter how many times the same block is updated as, if we flash back, we only care about the initial contents of the block. The size of the before image will be the same as db_blocksize. So the key to understanding how much flashback data will be generated is not just how much redo is generated but how many physical blocks are updated. If more blocks are affected by database updates during a given interval, then more disk space is used by the flashback log data generated for that interval and you will find that the size of the flashback data may greatly exceed the size of the redo generated.
Read it:
CALCULATE THE VOLUME OF FLASHBACK LOG GENERATION [ID 761126.1]
Regards,
Levi Pereira

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Lonion wrote:
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