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 RESTORE VERIFYONLY

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Zoroaster
Aged Yak Warrior

702 Posts

Posted - 2007-09-04 : 13:25:48
I am looking for your expert opinions, how reliable is using "RESTORE VERIFYONlY" in determining if a backup is restorable?

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Future guru in the making.

Kristen
Test

22859 Posts

Posted - 2007-09-04 : 13:31:07
SQL2000 = it isn't reliable.
SQL2005 = it is close to reliable.

However, nothing beats actually restoring the backup to a different machine and then performing a DBCC CHECKDB

Kristen
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Zoroaster
Aged Yak Warrior

702 Posts

Posted - 2007-09-04 : 13:48:37
quote:
Originally posted by Zoroaster

I am looking for your expert opinions, how reliable is using "RESTORE VERIFYONlY" in determining if a backup is restorable?

------------------------
Future guru in the making.



Thanks Kristen, I will keep this in mind.

------------------------
Future guru in the making.
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spirit1
Cybernetic Yak Master

11752 Posts

Posted - 2007-09-04 : 13:53:39
it doesn't verify the data strucuture only page checksums if you backed up using WITH CHECKSUMS.
so if you already backed up corrupt data the verify only might return ok even if you can't restore a backup.

+1 on K-Bot's statement above.

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Causing trouble since 1980
blog: http://weblogs.sqlteam.com/mladenp
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