Re: DataGuard Bandwidth requirements

From: George <>
Date: Wed, 13 May 2015 15:32:37 +0200
Message-ID: <>

I work it out another way...

Determine redo creation a hour, and then ask Networks to provide the required bandwidth to transfer that volume in a hour.

You can use the redo log generation over 24 hours to draw a graph, showing how it goes up and down and give them the required rate per hour.


On Wed, May 13, 2015 at 3:29 PM, max scalf <> wrote:

> Hello list,
> we are in process of deploying a Data guard and i am looking to get a
> bandwidth requirements. While googleing i came across the below formula
> multiple question is what exactly do the below numbers represents
> 0.7, 8, 1000000 ?? i know we can get and redo rate bytes per sec from
> v$sysmetric_history but confused on the numbers...
> *Required bandwidth = ((Redo rate bytes per sec. / 0.7) * 8) / 1,000,000
> = bandwidth in Mbps *

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Received on Wed May 13 2015 - 15:32:37 CEST

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