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Convert Mirroring to Log Shipping


Convert Mirroring to Log Shipping

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Robert Davis
Robert Davis
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Interesting article. I've converted log shipping to mirroring lots of time but never considered any use cases for the reverse. Nice thoughts!!


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Dan Guzman - Not the MVP
Dan Guzman - Not the MVP
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So....

Why not just fail over to the secondary full time, so that you can upgrade the primary offline. If all goes well, fail back to the primary, if not, the secondary keeps on running until the issues are resolved? No down time at all.
JeremyE
JeremyE
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Dan Guzman - Not the MVP (8/20/2010)
So....

Why not just fail over to the secondary full time, so that you can upgrade the primary offline. If all goes well, fail back to the primary, if not, the secondary keeps on running until the issues are resolved? No down time at all.



You would have to break mirroring or log shipping in order to have both primary and secondary databases online at the same time. How would you reconcile the difference between the primary which has the code upgrade applied and the secondary which has had user transactions running against it?
Dan Guzman - Not the MVP
Dan Guzman - Not the MVP
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Duh. Yes, of course, you are correct.
sejal p gudhka
sejal p gudhka
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Same also applies for LS in case of Recovery model is full, it can hold transactions till log file grows. Only +ve point of LS over log size is that it uses Bulk Load recovery model.
Paul White
Paul White
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A very good article - I have no idea why it's rating is so low.
Well done.



Paul White
SQLPerformance.com
SQLblog.com
@SQL_Kiwi
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