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Convert Mirroring to Log Shipping Expand / Collapse
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Posted Friday, August 20, 2010 12:02 AM


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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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Post #972296
Posted Friday, August 20, 2010 9:09 AM
Right there with Babe

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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.
Post #972608
Posted Friday, August 20, 2010 11:19 AM
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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?
Post #972711
Posted Friday, August 20, 2010 11:25 AM
Right there with Babe

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Duh. Yes, of course, you are correct.
Post #972717
Posted Monday, August 23, 2010 2:54 AM
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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.
Post #973273
Posted Thursday, September 2, 2010 4:08 AM


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A very good article - I have no idea why it's rating is so low.
Well done.




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