_db_writer_verify_writes hidden parameter & db_block_checksum
- From: <rama.ari@xxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 22 Jan 2009 10:28:34 -0500
Gurus
We have block corruption in Oracle RAC ASM environment. We are evaluating to
setup oracle parameters to debug/prevent block corruption when it happens next
time. Did any one used _db_writer_verify_writes parameter? I was in impression
that it helps to direct the DBWR to re-read every block after it writes it out
to make sure the write operation did happen as planned. I didn't find much
information in Metalink.
We are also evaluating setting up DB_BLOCK_CHECKSUM parameter. I would really
appreciate if you had any lesions learned with these parameters (like
performance degradation, etc)
Thanks,
Rama Ari | Accenture
Technology Consulting
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