The system managed cache size, the default setting, has been optimized by the software for I/O performance based on memory in the DataCore Server. The default setting should be sufficient for most purposes, but cache size can be adjusted if necessary, such as when physical memory is added or removed. Changing the cache size requires the server to be stopped and restarted.
The amount of cache used when the cache is system managed depends on the amount of RAM installed in the server.
o RAM less than or equal to 8 GB; the cache will use 60%. (8 GB is the minimum requirement)
o RAM less than or equal to 128 GB; the cache will use 65%.
o RAM greater than 128 GB; the cache will use 75%.
A current memory usage pie chart for the system RAM is displayed on the DataCore Server Details page>Settings tab which displays the amount currently in use by cache, in use by others (applications), and free space (memory not used).
Altering
the default settings may have on impact on the overall performance of
the DataCore Server.
The cache size set is approximate and a may not match the value that is
eventually used by the DataCore Server
due to other third party system drivers and services. If a non-default
cache setting is equal or greater than the available total system memory,
the default cache setting will be used and an alert will be posted in
the console.
To change the cache size:
1 In the DataCore Server Details page>Settings tab, set the cache size by either method in this step:
· To customize
the cache setting, click Set cache
size to, then enter or select the new size in the box, or use the
slider bar to set the size. Tip
Arrow keys move the slider one tick. There are 20 ticks per slider. The
PgDn key moves the slider four
ticks.
· To change the cache setting back to the default, click Use system managed cache size.
2 Click Apply.
3 Changing the cache size requires the server to be stopped and restarted for the cache settings to take effect:
a In the Ribbon>DataCore Server Actions tab, click Stop DataCore Server. Wait until the server is stopped.
b In the Ribbon>DataCore Server Actions tab, click Start DataCore Server.