Dbcachesize Option

The  option is available directly under , and under  ; note that these options control different cache sizes (  does NOT establish a default for  ).

Use with store
 The  Message Store option specifies the mailbox list database cache size. Setting the optimal cache size can make a big difference in overall Message Store performance. Cache efficiency can be determined by running  .

As of Messaging Server 7.0.5, the default for the Message Store option   is 67108864 (previously the default had been 16777216). Only values in the range 1048576-1073741824 (from 1024&#x2a;1024 to 1024&#x2a;1024&#x2a;1024) will be used, with smaller values being silently adjusted up, while attempting to set a larger value will result in only this maximum being used (and a warning message, if warning level logging is enabled for the Message Store).

Note that there is also a separate   option available at the Message Store   level,.

The default value in this context is: 67108864

See also:
 * Message Store options

Use with msghash
 The  Message Store   option, , specifies the message hash database cache size. Only values in the range 524288-536870912 (from 512&#x2a;1024 to 512&#x2a;1024&#x2a;1024) will be used (other values will be silently adjusted into that range), with the  default being 8388608 (8&#x2a;1024&#x2a;1024).

Note that this  option is separate from the   option,  which controls a different cache size.

The default value in this context is: 8388608

See also:
 * Message Store msghash options