Novell EDIRECTORY 8.8 - GUIDE, Manual

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Maintaining Novell eDirectory 501
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3 Choose from the following options:
4 Click Submit .
Setting Cache Parameters
By default, eDirectory uses dynamic cache. If you have sufficient RAM to increase the eDirectory
cache size, you can increase the performance of eDirectory considerably for large databases by
allocating more RAM to the eDirectory cache.
Hit Looks The number of items looked at in the cache before an item was
successfully accessed from the specified cache. The hit-look-to-hit
ratio is a measure of cache lookup efficiency. Normally, the ratio
should be close to 1:1.
Faults The number of times an item was not found in the specified cache
and had to be obtained in a lower level cache or from the disk.
Fault Looks The number of items looked at in the cache before it was determined
that the desired item was not in the specified cache. The fault-look-
to-fault ratio is a measure of cache lookup efficiency. Normally, the
ratio should be close to 1:1.
Option Description
Dynamic Adjust Allows the eDirectory database to dynamically adjust the amount of
system memory to be used for the cache based on the amount it
thinks it needs and the parameters specified below.
Cache Adjust Percentage The percentage of available memory allowed to be used for the
record and block caches combined.
Cache Size Constraints While dynamically adjusting, follow the specified constraints.
Namely, use no less than the specified amount of memory for the
cache and no more than the total amount of available memory
minus the specified amount.
Hard Limit The exact amount of system memory to be use for the cache.
Cache Maximum Size The size (in KB) of the record and block caches combined.
Block Cache Percentage The percentage of the system memory available for caching that
should be allocated to the block cache. The remaining percentage
will be allocated to the record cache.
Cache Adjust Interval This interval applies only when Dynamic Adjust is set. It controls
how often the cache size is adjusted, based on the specified
percentage and constraints.
Cache Cleanup Interval Controls how often unused old versions are removed from the
cache.
Cache Settings Permanent When this option is selected, any changes submitted through
iMonitor will be made permanent, overwriting any previously saved
settings or system defaults.
Database Cache Information Description