Hi Dennis, On average, we load data weekly. The load time is no more 40 minutes to an hour. Like I said, we're small at the moment. We're at about 70GB which includes temp and undo and growing at the rate of about 2GB a month.
Consequence of a failure has been discussed with the developers and users. Developers say that they can live without the DW for one business day. The users don't access the database directly so they would not be affected. As far as critical data being lost, well if we loose the database and we have BCVs in place, we can just reload any data that is missing from the flat files, so no biggie there. Also, I take an export of the entire database after a load. As far as how much the sys admin knows about Oracle well... knows enough from a sys admin perspective that we can converse intelligently but I suspect still holds to the old myths about Oracle that have been discussed on this list. Appreciate your input. mohammed --- DENNIS WILLIAMS <[EMAIL PROTECTED]> wrote: > Mohammed - When is this database updated? Once/week? > Daily? Continuously? If > there is a failure, what is the consequence of > returning to the last backup? > How much critical data will be lost? How will > recovery times be affected > with/without archive logging? How much does your sys > admin know about > Oracle? > We have a data warehouse that gets updated > weekly. The day after the load > we perform a cold backup. We don't use archive > logging. > > Dennis Williams > DBA > Lifetouch, Inc. > [EMAIL PROTECTED] > > -----Original Message----- > Sent: Friday, January 09, 2004 3:25 PM > To: Multiple recipients of list ORACLE-L > > > Have a question on backups in a DW environment. > > Our DW is somewhat small at the moment but projected > to grow. I seem to be having a hard time trying to > convince the sys admin that I don't want archive > logging turned on. To me, it does'nt make much > sense. > > He's proposed using EMC BCV's which I've agreed to > (and also sounds like a good idea) but also wants to > turn on archiving. My thinking is why turn on > archiving if I can restore my DB from last night's > BCV's and then bring it up to date by re-loading any > data that was loaded after the BCV split. > > Our system is not 24x7 so we can shutdown before the > BCV split. Also, it's not directly accessed by > users > for ad-hoc queries. Automated processes access the > database and build cubes using Cognos tools. Users > access these and not the DB directly. > > So, again I don't see the need for archive logging. > > Any thoughts? > > mohammed > > > __________________________________ > Do you Yahoo!? > Yahoo! Hotjobs: Enter the "Signing Bonus" > Sweepstakes > http://hotjobs.sweepstakes.yahoo.com/signingbonus > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.net > -- > Author: mkb > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 > http://www.fatcity.com > San Diego, California -- Mailing list and web > hosting services > --------------------------------------------------------------------- > 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). > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.net > -- > Author: DENNIS WILLIAMS > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 > http://www.fatcity.com > San Diego, California -- Mailing list and web > hosting services > --------------------------------------------------------------------- > 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). __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes http://hotjobs.sweepstakes.yahoo.com/signingbonus -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: mkb INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
