| block change tracking file - when it is used? [message #526496] |
Tue, 11 October 2011 05:16  |
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piotrtal
Messages: 168
Registered: June 2011
Location: Poland/Czestochowa
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Senior Member |
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hi
i have question.
i did such commands
1. RMAN -> backup incremental level 0 database;
2. SQLPLUS -> alter database enable block change tracking
using file '/home/oracle/block_change_tracking.tr';
3. RMAN -> backup incremental level 1 cumulative database;
4. RMAN -> backup incremental level 1 cumulative database;
5. RMAN -> backup incremental level 1 cumulative database;
and for such order i noticed that block change tracking file wasn't used for any cumulative backup. for each cumulative backup was done full scan over database.
it was used after i did incremental level 0 backup, and again incremental 1 cumulative.
so question and concern is.
if i want this feature to be usefull i should enable it before my incremental level 0, or i should do incremental level 0 immediately after i enable it?
am i right?
[Updated on: Tue, 11 October 2011 05:27] by Moderator Report message to a moderator |
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