Accessibility of the previous backup Image of RMAN copy after roll forward with the additional days

Hi all

I have these 2 questions related to RMAN Image backups. Please suggest the best approaches...

We are in publishing Standard of Oracle 11.2.0.3 database on instances of RAC ASM on Windows 2008 and want to see the feasibility of using Copies of RMAN images for our databases.

Have a question about the availability of backups for restoration in a scenario explained below:

1ST QUARTER)

To get copies of the Image which are rolled to the next incremental backup. Can we still restore/recovery to earlier date than the Image backup before rolls? If not, please suggest

What is the best way to accomplish this task if we choose RMAN COPY of IMAGE as our backup strategy.

Example:

Log archiving is enabled.

Sunday evening: full level 0 backup copy Image

Monday night: 1) level 1 incremental Image copy backup and Roll-forward/apply the incremental backup for the full backup from Sunday

(2) backup of files to archive log after the full backup from Sunday.

Tuesday evening: 1) level 1 incremental Image copy backup and Roll-forward/apply the incremental backup for roll Monday transferred (full) backup.

(2) backup of files to archive log after incremental backup from Monday.

Wednesday evening: 1) level 1 incremental Image copy backup and Roll-forward/apply the incremental backup to roll Tuesday transferred (full) backup.

(2) backup of files to archive log after incremental backup on Tuesday.

Can we restore and recover the data until Tuesday morning 11:00 even if our full backups are rolled transferred by the application of incremental backups. Please suggest

What is the best way to accomplish this task if we choose RMAN COPY of IMAGE as our backup strategy.

Q2)

Q2.a) Scenario 2: with above politics of backup in the 1st quarter.

If I intend to use the copy of current Image backup on WEDNESDAY NIGHT for the recovery and restoration on-site. understand that

We're losing backup of forwded for the roll of Wednesday night. Is it possible to take a backup/backup copy of this Wednesday night before being used for on-site recovery, so that we can use it

for all future restorations.

Q2.b)

If we are unable to take backup of the night't Wednesday backup before being used for the recovery on the spot. We can always access backup Image roll passed Tuesday night? If so, can

I take a new incremental Image copy backup Thursday night and roll forward/apply to copy backup Image Tuesday night. Please suggest the best approach to have accessible backups for each night?

Thank you

Hello

I suggest that postpone differentials apply for a week as says Hemant.

for example:

grab the copy of database with tag = "incremental_update" until ' SYSDATE-7 "; ". "

1 extra strength to recover from backup with tag = "incremental_update" database;

Talip Hakan Öztürk

Tags: Database

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