Re: Anyone Using IBM flash Copy for Database Backups?
Date: Mon, 2 Nov 2009 08:38:01 -0800 (PST)
I have been using flashcopy. and flashcopy is a disk mirroring / cloning solution. . If the disk are kept in sync yes the backup to disk will be less than 15 minutes . I am using this and EMC clones to offload my backups to tape without impacting the production node. Has IBM talked about the initial sync time thought which can take hours and can impact the production node. Same is the case with EMC though.
- Original Message ---- From: Peter Barnett <regdba_at_yahoo.com> To: Oracle-l <oracle-l_at_freelists.org> Sent: Mon, November 2, 2009 8:50:15 AM Subject: Anyone Using IBM flash Copy for Database Backups?
We have several large warehouse databases in the 12T to 15T range. The normal run time for our RMAN backup scripts more than doubled after upgrading to 11g. The scripts do use compression which seems to be the problem.
IBM claims that Flash Copy will back up a 2.5T DB2 database in less than 15 minutes. Is anyone using Flash Copy for Oracle database backups? If so, do the IBM estimates for DB2 correlate to Oracle run times?
Database Technologies Lead