Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> Re: I/O activity during HOT backups

Re: I/O activity during HOT backups

From: Rachel Carmichael <carmichr_at_hotmail.com>
Date: Mon, 19 Jun 2000 18:12:01 GMT
Message-Id: <10533.109740@fatcity.com>


all I/O that would normally go to the database files when you are not in backup mode will still go to the database files when you ARE in backup mode.

What happens is that full blocks are written to the redo logs, and the database file headers are not updated.

Rachel

>From: Dan.Hubler_at_midata.com
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: I/O activity during HOT backups
>Date: Mon, 19 Jun 2000 10:18:14 -0800
>
>
>Please settle a discussion amongst our DBA team:
>
>Is there ANY I/O that takes place to the database files (*.DBF)
>during a HOT backup? (That is, ALTER TABLESPACE BEGIN BACKUP).
>
>If not, how does the process work?
>
>Thanks.
>
>
>
>
>???
>
>
>--
>Author:
> INET: Dan.Hubler_at_midata.com
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
>--------------------------------------------------------------------
>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).



Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com Received on Mon Jun 19 2000 - 13:12:01 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US