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Tom Kyte

Thanks for the question, Mark.

Asked: November 24, 2009 - 9:18 pm UTC

Last updated: November 26, 2009 - 10:05 am UTC

Version: 10.2.3

Viewed 1000+ times

You Asked

Hi Tom.

I've been an avid follower for many years and I feel lucky to ask you a question.

I've been asked to recommend a solution to a business unit. They are using Oracle Standard Edition and they want to enable a disaster recovery solution to a 3rd party site some miles away.

I've recommended they upgrade to Enterprise Edition and use Dataguard. The business is not happy upgrading to Enterprise Edition and they want me to develop an answer without spending the extra cost. (I know they will spend this in the development).

Their solution is to log switch every xxx minutes and apply the logs to the DR server, however my question to them is "why re-invent the wheel"? As well, this will generate many more archive logs throughout the day.

The other option is to use "true copy" to mirror data across the network, however this will generate way too much traffic.

Is there another solution for Standard Edition. What are you thoughts?

and Tom said...

... and they want me to develop an answer without spending the extra cost. (I know they will spend this in the development). ...

In other words, they want magic. Your time must be so cheap and inexpensive - now and into the future (for anything you build has to be supported, maintained, administered - that is all "free" apparently)

from what I've read about true copy - you would need some serious hardware (that costs money too) at each end and in between. As well as the software.


with standard edition - you will always lag behind by at least an online redo log file, that will be unavoidable.

see
http://www.databasejournal.com/features/oracle/article.php/3682421/Manual-Standby-Database-under-Oracle-Standard-Edition.htm

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Comments

Also consider DbVisit

Stuart, November 26, 2009 - 12:49 pm UTC

You could also consider a product called DbVisit. DR solutions for Oracle Standard edition.

http://www.avisit.co.nz/