and in any case, I truly believe you should do the backup to disk and then back that up to tape...
what happens if there is a problem with the tape drive? Will the backup hang because it's stuck? Just easier. --- [EMAIL PROTECTED] wrote: > > Yechiel, > > I believe that Dennis is moving towards backing up to tape. This is > just > his first step in testing and implementing RMAN. It's a pretty > complex > tool to use and takes quite a while to fully implement. RMAN can be > pretty overwhelming and Dennis is trying to bite off small bits and > try to > get those working before moving forward to add more complexity. > > I know some people are put off by the work involved with getting RMAN > going > but once it's set up, it's a great, reliable tool. I give Dennis > credit > for trying to tackle it and keeping us apprised of the method he's > using to > do so. I think lot's of other folks out there would like to > implement > RMAN and could learn from his travails. > > Cherie Machler > Oracle DBA > Gelco Information Network > > > > > ��� ����� > > <adary@mehish. To: Multiple recipients > of list ORACLE-L <[EMAIL PROTECTED]> > co.il> cc: > > Sent by: Subject: RE: Disaster > recovery using RMAN > [EMAIL PROTECTED] > > om > > > > > > 01/18/02 02:15 > > AM > > Please respond > > to ORACLE-L > > > > > > > > > > Hello Dennis > > I think that you need to backup the disk files to tape A.S.A.P. > What will you do if your disk has gone to the great disk scrap yard > in the > sky? > One more point: Is the disk on the same machine or in the same room? > What will you do if a fire will destroy your server farm? > > To get a good backup you need to replicate the disks to a remote site > or backup them to tapes and put the tapes in remote site. > > Yechiel Adar, Mehish Computer Services > [EMAIL PROTECTED] > > > -----Original Message----- > > From: DENNIS WILLIAMS [SMTP:[EMAIL PROTECTED]] > > Sent: Fri, January 18, 2002 4:05 AM > > To: Multiple recipients of list ORACLE-L > > Subject: RE: Disaster recovery using RMAN > > > > Sona - > > Please keep in mind that we are RMAN novices at this > stage. Of > all > > the DBA duties, I feel that the ability to recover the data is the > most > > important. > > I picked our smallest database to start getting some > operational > > experience with. We still do weekly cold backups, writing the > results to > > tape because I haven't worked with RMAN long enough to have full > > confidence > > in it. The database is archivelog, of course. > > Currently I do a weekly RMAN level 0 backup to disk. We > don't > have a > > Media Manager like Legato or Veritas yet, and we were warned that > RMAN > > gets > > much more complex when these are used, so I thought disk backups > sounded > > like a good way to begin. > > During the week we do RMAN incremental backups each night. > This > > takes up very little disk space. My feeling is that with the weekly > cold > > backup we are heavily dependent on our archive logs and with the > RMAN > > incremental backup we would only be vulnerable for a day if an > archive > log > > was lost. Recall that during recovery, Oracle reads the archive > logs in > > sequence and if for some reason an archive log is missing or > unusable, > > recover stops there. > > We keep the week's RMAN backups on disk. Presumably if we > had a > > failure, RMAN would have what it needs on disk. Before a backup is > deleted > > from disk it is written to tape as part of the regular full system > > backups. > > I was having RMAN archive the archivelogs, but I couldn't > figure > out > > what this was buying me and it doubled the amount of disk needed > for the > > archive logs. If we were using a media manager so RMAN was writing > to > > tape, > > then this would be great, but since we are only backing up to disk, > I > felt > > it wasn't needed. > > I hope this gives you the details you need. As I said, I > am an > RMAN > > novice, but always willing to answer more questions as I am able. > > Dennis Williams > > DBA > > Lifetouch, Inc. > > [EMAIL PROTECTED] > > > > > > -----Original Message----- > > Sent: Thursday, January 17, 2002 11:46 AM > > To: Multiple recipients of list ORACLE-L > > > > > > Dennis, > > Could you please share your regular backup strategies with me for > me to > > understand this better? > > > > Thanks > > > > ----- Original Message ----- > > To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> > > Sent: Thursday, January 17, 2002 9:00 AM > > > > > > > > > > Dennis, > > > > > > I hope you can clarify something in your plan for me. > > > > > > Why are you backing up to disk? By doing so, you are losing one > of the > > > chief benefits of RMAN. RMAN keeps a catalog of the tapes and > knows > > > which tapes to request to restore a backup, and which files to > retrieve > > > from those tapes. > > > > > > Do you backup the disk files to tape without the benefit of any > tape > > > management software? Do you manually label the tapes? > > > > > > Thanks, > > > > > > Jared > > > > > > > > > > > > > > > > > > DENNIS WILLIAMS > > > <DWILLIAMS@LIFE To: Multiple > recipients > of > > list ORACLE-L <[EMAIL PROTECTED]> > > > TOUCH.COM> cc: > > > Sent by: Subject: RE: > Disaster > > recovery using RMAN > > > [EMAIL PROTECTED] > > > m > > > > === message truncated === __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
