Explanation:
The PercentAvailSysResources setting in notes.ini was introduced in Domino
5. This parameter was used to reduce memory usage on systems with large
amounts of installed RAM, as well as shared resources between partitioned
servers. This parameter only affects the size of the Unified Buffer Manager
(UBM) which makes up only one part of memory shared memory usage. PercentAvailSysResources
does not take into account the inherent limits of a 32-bit process address
space.
Value range is 2 to 100
Recommendation:
With the introduction of additional validation configuration capability
in Domino 6, technote 1286171 strongly recommends the discontinued use
of this INI parameter for all versions of Domino beyond 6.0. However, it
has been found that in some cases when running multiple DPARS on a machine
or an LPAR, the use of PercentAvailSysResources can greatly improve server
behavior.
References:
Technote 1286171
Recommendations for setting NSF_BUFFER_POOL_SIZE_MB
http://www.ibm.com/support/docview.wss?rs=899&uid=swg21286171
Notes/Domino Best Practices: Performance
http://www-01.ibm.com/support/docview.wss?rs=203&uid=swg27008849
Lotusphere06 - ID115 Domino’s Intimate
Relationship with Memory, CPU, and Storage (
Domino Configuration Tuner:
This setting is included in the
DCT
catalog of best practices.