| BAckup set,backup and backup piecec [message #481135] |
Mon, 01 November 2010 00:12  |
sekar52
Messages: 141
Registered: May 2010
Location: Mumbai
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Senior Member |
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Hi guys I want to know the difference between backup,backup set and backup piececs in Rman.
1.Each backup set may consist of many backup pieces which are nothing but datafiles.
2.Each backup may consist of many backup sets.
Am I right about this?If so will all backup sets within a backup contain the same backup set number or different one.
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| Re: BAckup set,backup and backup piecec [message #481140 is a reply to message #481137] |
Mon, 01 November 2010 01:58  |
sekar52
Messages: 141
Registered: May 2010
Location: Mumbai
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Senior Member |
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I went through it.So suppose my backup consists of 3 backup sets.
1 backset--->datafile 1,2
2 backupset--->datafile 3,4
3 backupset--->archivelog
Now in my backup i have lost backup set 2 and 3 and I have only backup set 1.Does that mean RMAN can use it to recover datafile 1 and 2.
Thanks
Sekar
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| Re: BAckup set,backup and backup piecec [message #481141 is a reply to message #481140] |
Mon, 01 November 2010 02:07 |
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Michel Cadot
Messages: 68716
Registered: March 2007
Location: Saint-Maur, France, https...
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Senior Member
Account Moderator |
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Yes and no, it depends of the purpose of your recovery and what you have beside that.
The best way to understand is to test by yourself.
Create a database and make some backup and recovery.
Regards
Michel
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