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TORN_PAGE_DETECTION

Posted on 2010-08-25
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Last Modified: 2012-05-10
if one of the database says 'TORN_PAGE_DETECTION', is it of concern? what could be done to make it CHECKSUM again?

thanks
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Question by:anushahanna
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7 Comments
 
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Accepted Solution

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aelliso3 earned 500 total points
ID: 33524962
you can change it back with the following ... I haven't heard of it changing by itself before.
ALTER DATABASE SomeDB SET TORN_PAGE_DETECTION OFF
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Expert Comment

by:aelliso3
ID: 33524989
you can also do it through the GUI if you prefer,
Right click on the database --> Go to Properties --> Select Options
Go down to Recovery --> Page Verify        and select whichever you want
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Author Comment

by:anushahanna
ID: 33525022
so there is nothing to be concerned about that option/setting?

what is the disadvantage if it is still operating in that mode?
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Expert Comment

by:aelliso3
ID: 33525099
there is a very small difference between torn page detection and checksum. The only one that I can really think of is that torn page detection does not detect corruption within sectors. Checksum uses a very very small amount more CPU, but the benefits are worth that little bit.
 
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Author Comment

by:anushahanna
ID: 33525208
OK. Thanks.

ALTER DATABASE SomeDB SET TORN_PAGE_DETECTION OFF
puts the DB to 'NONE'. How would you bring it to CHECKSUM?
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Assisted Solution

by:aelliso3
aelliso3 earned 500 total points
ID: 33525240

ALTER DATABASE SomeDB SET PAGE_VERIFY CHECKSUM
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Author Comment

by:anushahanna
ID: 33530774
Thanks.
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