Oracle RAC with Active Data Guard : Maximum Availability Architecture

From: Chris King <>
Date: Mon, 23 Dec 2013 06:37:08 -0800 (PST)
Message-ID: <>

We're architecting a new system, and will need 99.5% availability. Looking over Oracle's MAA options, I see RAC with Data Guard. .. but it's not clear to me how this would actually work to avoid ALL downtime. Won't I still need downtime to apply patches, even if I use rolling patches? And isn't it more complex applying patches when there's a standby involved?

Is 99.5% really achievable with this combination?

Thanks in advance..

Received on Mon Dec 23 2013 - 15:37:08 CET

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