Agreed. In this case they are proposing this for all Tier-1 systems, including financial systems and I don’t think they appreciate the scenarios where there could be significant data loss. Interestingly, the Tier-2 and Tier-3 systems will be backed up as they are on a different architecture. Keith On Sep 18, 2014, at 12:06 PM, Seth Miller <sethmiller.sm@xxxxxxxxx> wrote: > Is it safe to assume these snapshots are being taking with the database in > backup mode? > > What is the procedure for restoring a non-critical datafile? > > What is the procedure for repairing block corruption? > > You don't have to be an old school DBA to have concerns about this. It's not > necessarily a bad thing to not have backups as long as everyone involved is > aware of and accepts the consequences and loss of functionality of not having > them. > > Seth Miller > > On Thu, Sep 18, 2014 at 11:46 AM, Keith Moore <kmoore@xxxxxxxxxxxx> wrote: > The purpose would be to have a backup if there is a catastrophic SAN failure. > I know EMC and other storage vendors like to think that cannot happen but I've > seen it four or five times over the years, mostly due to human error. > > Your database is gone which makes the snapshot (if it still exists) invalid. > > FYI, we will be using ExtremIO and there are a lot of good things about the > VBlock. I'm just not comfortable with having zero backups. > > Keith > > > great thread. > > > > In this specific model would the purpose of RMAN backup to make sure you're > > not backing up corrupt blocks? > > > > > > > > > > > > > > > > Kevin Closson > > Chief Performance Architect - XtremIO > > EMC > > > > > > ________________________________ > > From: Keith Moore <kmoore@xxxxxxxxxxxx> > > To: andrew.kerber@xxxxxxxxx > > Cc: "Oracle-L@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx> > > Sent: Thursday, September 18, 2014 9:17 AM > > Subject: Re: Backups versus snapshots > > > > > > I agree. They do not want to pay for the backup infrastructure so if that is > > the final decision by the architecture team, rman backups will not be an > > option. > > > > > > > > > >> Keep snapshots and rman backups. Belt and suspenders. > >> > >> Sent from my iPhone > >> > > > > > > -- > > //www.freelists.org/webpage/oracle-l > > > -- > //www.freelists.org/webpage/oracle-l > > >