Well, = first thing that needs to be noted is that “24 x 7 x 365” = indicates uptime for 7 years, which always gives me a chuckle when people say = it. Mind you, I’ve been = guilty of saying it too! = J<= /span>

And = probably the second thing that needs to be said is that no single product = addresses true HA requirements. RAC is no different to that. It = provides machine failover capability, and while it can be stretched to a certain = extent to give the illusion of site failover capability, you would still need = someone like DataGuard to address issues such as human error correction.

And = probably the third thing that needs to be said is that it’s not just a = technology thing. If you don’t = have robust change control, for example, a simple coding error can ensure you = don’t meet your availability requirements.

<Shameless plug> And probably the fourth thing that needs to be said is that = it’s all covered in one of my papers at RMOUG Training Days next February, = Real Business Continuity with Oracle10g </Shameless plug>. J<= /span>

Pete

"Controlling developers is like = herding cats."

Kevin Loney, Oracle DBA = Handbook

"Oh no, it's not. It's much harder than = that!"

Bruce Pihlamae, long-term Oracle = DBA

-----Original = Message-----
From: = ml-errors@fatcity.com [mailto:ml-errors@fatcity.com] On = Behalf Of Tracy Rahmlow
Sent: Thursday, December = 11, 2003 3:44 AM
To: Multiple recipients = of list ORACLE-L
Subject: 24 x 7 x = 365

Hello,
Our company would like to know whether or not Oracle supports true 24x7x365 availability for an oltp database. We currently are using the = 8.1.7 enterprise edition. Does an architecture exist whereby we can = upgrade the database and/or operating system and not cause an outage? Will RAC = solve this issue? Are there any other areas of concerns that I should be thinking about? For example, analyzing with the validate clause = and its impacts on the transaction system. Thanks =

American Express made the following
annotations on 12/10/2003 09:41:15 AM
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"This message and any attachments are solely for the intended = recipient and may contain confidential or privileged information. If you are not = the intended recipient, any disclosure, copying, use, or distribution of the information included in this message and any attachments is prohibited. = If you have received this communication in error, please notify us by reply = e-mail and immediately and permanently delete this message and any attachments. = Thank you."

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