One thing that I believe comes above all the technology pieces that we can buy from vendors is smart people who can use those technologies and engineer solutions to provide this kind of solutions to the business. We have been using some state of the art technologies from Sun, EMC, Veritas and Oracle but due to lack of skilled people in the storage area, we have suffered a lot of pain in the past. One such experience was when an individual mistakenly restored a copy of BCV to our live mission critical production database in the middle of the day causing a lot of pain and hours of downtime. Sun's large iron boxes alone do not provide high availability as they are susceptible to crash upon a CPU failure. So, the larger the box you have, the more CPUs are there and the greater is the chance of a CPU panic. We have suffered this quite a few times over the years on Sun's 15K servers. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Oded Maimon Sent: Thursday, July 07, 2005 1:13 PM To: oracle-l@xxxxxxxxxxxxx Subject: Re: High Availability -- True 7x24x365 The basics: RAC + DataGuard *or* RAC + Sync data copy with your storage hardware (if you have hardware that is certified with oracle) or talk to Veritas, they got the best tools for that (the best DRP you can have) of course all hardware need to be duplicated (2 eth cards, 2 Power suppliers and so on...) this doesn't solve the downtime when you change your schema (change tables, package and so on) to solve this you need your application to be written like that, and this is not an easy job. Peter Barnett wrote: >We have finally moved into the modern digital world. >Outages of our company web site are being noticed by >our customers which is causing management to ask about >maintaining 7x24x365 up time. > >There are several ideas being circulated but I was >wondering how others are doing it? > >The requirement is true 7x24x365. Patches, upgrades, >maintenance need to be transparent to the users of our >web sites. > > > > > >Pete Barnett >Lead Database Administrator >The Regence Group >pnbarne@xxxxxxxxxxx > >__________________________________________________ >Do You Yahoo!? >Tired of spam? Yahoo! Mail has the best spam protection around >http://mail.yahoo.com >-- >//www.freelists.org/webpage/oracle-l > > > -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l