No experience. I fact I'm learning from your experience. While you say "from my training at IBM that a cache hit rate of 99% and above is recommended"
I found the following statement in the web interface. The server database performs best with a cache hit ratio above 97% in the database bufferpool. To tune the bufferpool size, (a) reset the bufferpool statistics, (b) execute server operations that use the database, and (c) view the database details to see if the cache hit ratio is above 97%. If the cache hit ration is NOT above this percentage, increase the size of the BUFPOOLSIZE specification in the server options file. Conflicting advice? Perhaps your 97.7% is good and no problem exists. Let's hear from others. Please...... Ken [EMAIL PROTECTED] >>> [EMAIL PROTECTED] 08/21/2002 12:46:04 AM >>> Hi all, first I've to thank all participants for the amount of answers I got on my latest questions. Now I've got a new one which relates on the bufferpoolsize and the cache hit rate on OS/390 TSM-Servers. we use the following bufpoolsize: 32768 our chache hit rate: 97,7 % I know from my training at IBM that a cache hit rate of 99 % and above is recommended. Is it possible, that a lower cache hit rate can cause performance-problems? What is your experience? MfG Sascha Br�uning Sparkassen Informatik, Fellbach OrgEinheit: 6322 Wilhelm-Pfitzer Str. 1 70736 Fellbach Telefon: (0711) 5722-2144 Telefax: (0711) 5722-1630 Mailadr.: [EMAIL PROTECTED]
