Seema First remember the old rule : If it's not broken don't fix it.
There is a rule of thumb that redo log switches should happened app. every 30 minutes, but if you se redo log switches happening more often at some times and nobody is complaining then just ignore the it. If you have a performance problem and you se redo log switches then create bigger redo logs so that switches happen app. every 30 minute. Seema Singh wrote: > Hi > I checked my database and see redo ratio is high. > I ran the folling query > select (req.value * 5000) / entries.value "Redo Ratio" > from v$sysstat req, v$sysstat entries > where req.name = 'redo log space requests' > and entries.name = 'redo entries'; > But the > background checkpoints completed and background checkpoints started > are having diffrence 1. > When I do large insert and delete I receive message in alert log > "Checkpoint not completed." but not regulary. > My redo log file size is 20m. > oracle is running on 8.1.6 on unix. > LEt me know group suggestion. > Thanks > -Seema > > > > _________________________________________________________________ > Get your FREE download of MSN Explorer at > http://explorer.msn.com/intl.asp. > -- Best regards Peter Gram Miracle A/S http://MiracleAS.dk Tel: +45 2527 7107 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Peter Gram INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (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).
