Reducing memory usage on store.exe

You probably know that store.exe will normally just consume all available memory until the system decides that something else uses it, then it tries to relinquish that allocated memory. In practice we’ve found that this comes at a performance hit for other programs, so here’s how to limit the amount of memory store.exe util

Overview: Use ADSIedit.msc to update msExchESEParamCacheSizeMin andmsExchESEParamCacheSizeMax with page sizes.

1. Run adsiedit.msc
2. Connect to: Select a well known Naming Context : [Configuration]
3. Expand the following:
   • Configuration\Services\Microsoft Exchange\ (First Organization) \Administrative Groups\ (Exchange Administrative Group) \Servers\ (Server Name)
4. Right click on CN=Information Store and click properties
5. Update the values of msExchESEParamCacheSizeMin and msExchESEParamCacheSizeMax with values from the following table:
   

   Target Cache Size in GB	msExchESEParamCacheSize for 2010+ (32KB pages)	msExchESEParamCacheSize for 2007 (8KB pages)
   1	32768	131072
   2	65536	262144
   3	98304	393216
   4	131072	524288
   6	196608	786432
   8	262144	1048576
   10	327680	1310720
   12	393216	1572864
   14	458752	1835008
   16	524288	2097152
   18	589824	2359296
   20	655360	2621440