Hello,
We are running SAP SCM 7.03/Oracle 11.2 plugged to a Livecache system (MaxDB 7 .9), the hardware is HP-UX ia64.
I am quite new to MaxDB technology.
We have received several complaints over the past weeks, over MaxDB performances.
It turns out that one of the main issue we had was Data cache Usage 100%
So I have increased the value of CacheMemorySize parameter several times, from 32000 to 64000 to 128000
But after a while, the datacache usage hits 100 %, even when there are no users connected, no datalaods from SCM, absolutely no activity,
And the datache usage remains at 100%
Now the current value is : 256000, but I am afraid that it is only a matter of time, before it hist again 100% for no apparent reasons.
I have checked SAP notes database to try to find any guidance, recommendation on the optimal size
of CacheMemorySize , there are several FAQ, several notes detailing database parameters, but I could not find
anything about CacheMemorySize recommended settings
Any help in understanding why the data cache usage remains at 100% even when there is no activity would be really helpful.
Also any recommendation on CacheMemorySize setting would be really appreciated.
Thank you
Best regards
Raoul