Re: I/O activity during HOT backups

From: Ron Rogers <RROGERS_at_galottery.org>
Date: Mon, 19 Jun 2000 15:24:07 -0400
Message-Id: <10533.109760@fatcity.com>

Oracle has designed it's database to allow backups during activities = against the tablespaces. When you issue the command"...BEGIN BACKUP" the = updates against the tablespace are "held" in the redo logs until the time = you issue the "...END BACKUP" command. That is the reason you should = switch log files when you have backup up all of your tablespaces and copy = the archive logs to the backup destination or device. Hope this helps.
Ron Rogers
DBA
Georgia Lottery Corp
Atlanta,GA

>>> Dan.Hubler_at_midata.com 06/19/00 02:18PM >>>

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.

???

--=20
Author:=20
  INET: Dan.Hubler_at_midata.com=20

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). Received on Mon Jun 19 2000 - 14:24:07 CDT