in the life situation, is the flash recovery area used often?

Hi all

in the life situation, is the flash recovery area used often? or being extinguished?

What is general practice?

Thank you

Andrew

Andrew,

First that you must answer - what you want to with flash recovery area (FRA). FRA may or may not be used with another technology - flashback database.

(i) are you using a base of data of flashback (database +, not table or query flashback flashback), i.e. you have lit the flame of the database? If so, you need to use CRF because that's where the FB connect to go.

(ii) If you don't use flashback database, you can, but you don't need to use FRA. FRA can be used for database backups and archived logs archived backups of logs.

I strongly suggest not to use FRA for archived logs. As a corollary, I strongly suggest backups seprating and newspapers archived on separate file systems (and underlying disks), if possible. Don't forget, you can always re-create a lost backup using logs archived. but never an archived newspaper lost. If you have lost journal #345, but all the others to have #346-#1000, it doesn't matter; recovery stops at 345. So imagine put backups and newspapers archived on a single point of failure - you lost two of them.

Therefore, I use different locations for backups and archived logs, somewhat defeat the purpose of the FRA, where both are supposed to go.

Caveat: I do this for all important databases. If a database is not so important, well...

I hope this helps.

Arup

Tags: Database

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