RE: RMAN backup - basic Qs

From: Freeman Robert - IL <FREEMANR_at_tusc.com>
Date: Thu, 16 Jan 2003 12:19:34 -0800
Message-ID: <F001.00531FF8.20030116121934@fatcity.com>

RMAN does no compression on any blocks with data. The only compression that occurs that blocks above the HWM are not included. No compression of data occurs, and in fact empty blocks can and are backed up by RMAN.

RF

Robert G. Freeman
Technical Management Consultant
TUSC - The Oracle Experts www.tusc.com
904.708.5076 Cell (it's everywhere that I am!) Author of several books you can find on Amazon.com!

-----Original Message-----
Sent: Thursday, January 16, 2003 1:54 PM To: Multiple recipients of list ORACLE-L

No.

Because Rman is not placing the tablespaces in a HOT BACKUP mode. Rman is simply reading the blocks, compressing them, and writing them to tape.

Tom Mercadante
Oracle Certified Professional

-----Original Message-----
Sent: Thursday, January 16, 2003 12:35 PM To: Multiple recipients of list ORACLE-L

Is Excessive Redo Generated during RMAN OPEN Database backup using backup sets as happens in case of HOT Backup ?

If NOT , Why ?

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Author: VIVEK_SHARMA
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Author: Mercadante, Thomas F
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Author: Freeman Robert - IL
  INET: FREEMANR_at_tusc.com

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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu Jan 16 2003 - 14:19:34 CST