Dhimat,Eventually the end user will realize that there are three choices: good, fast, and cheap. He gets to pick only two.
The moral is: if you want 24X7 and five nines reliability, you need redundant hardware and network. No exceptions.
r, Gus On Dec 16, 2006, at 9:22 AM, Dhimant Patel wrote:
Hi Gurus,This seems very common issue but I am confronted with a requirement where we need to have 24x7 availability, no exceptions. There is no way we can have staging server (for patch testing before deploying on the production.) and we need to accommodatesoftware upgrades without a planned downtime.I'm also wondering how shops having 24x7 availability addresses such issues?Since I'm focused solely on Oracle, I'm not aware if any database server allow patching/upgrading without bringing down the server?Is any mainstream database server offer such solution? Thanks, DP.