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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Oracle's "dbv" : how frequently do you use it ?
I never run it unless I suspect I need to for some reason.
In 9 years I've seen maybe 3 corrupt data blocks, all were indexes.
That said, the last time I saw one was probably 4-5 years ago.
Jared
Hemant K Chitale <hkchital_at_singnet.com.sg>
Sent by: root_at_fatcity.com
05/07/2003 11:06 PM
Please respond to ORACLE-L
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Subject: Oracle's "dbv" : how frequently do you use it ?
Yesterday, there was a server crash when the storage
went "offline" at my site. The engineers were able
to bring the storage back after a few hours and then
ran "fsck" on the uFS file systems.
I then started up the Oracle Database.
Out of curiosity, I ran "dbv" on all the datafiles
[online with the database open]. Only one page
[an Index block] was reported as "Failing". I then
rebuilt the Index [it was recreated to a different
location]. Rerunning dbv I still saw the same
error on the same block. As this block was now in
a free extent, I wasn't concerned -- a new extent
allocation would format the block when required.
So now I am curious. How frequently do people run
"dbv" ? Only after crash recovery OR Regularly
on Open Databases ?
I am thinking of setting up jobs to run "dbv" on
critical databases regularly but would like to look
for field experiences.
Hemant K Chitale
http://hkchital.tripod.com
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Author: Hemant K Chitale
INET: hkchital_at_singnet.com.sg
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INET: Jared.Still_at_radisys.com
Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services ---------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Thu May 08 2003 - 14:42:18 CDT
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