Start/notes.ini Parameters/Memory_Quota

Memory_Quota

Parameter: Memory_Quota
Short description: Limits the virtual memory (in MB) the Domino server may allocate. Minimum value 4 MB; without setting it, no limit applies.

Profile

Parameter
Memory_Quota
Category
Performance / Memory
Available since
At least 9.0.1 (HCL documentation)
GUI equivalent
According to HCL, no direct GUI option. Configurable in the configuration document on the NOTES.INI Settings tab.
Possible values
Integer in MB — minimum value 4 MB per HCL
Default
None — without an entry, the server uses all available memory (per HCL).

Description

According to HCL product documentation:
Specifies the maximum number of megabytes of virtual memory that the server can allocate.
This setting gives administrators more control over the growth of the swap file. The minimum value is 4MB. Without this setting in the NOTES.INI file, the server uses all available memory.
Memory_Quota is an emergency-brake parameter: without it, a Domino server under load can continuously request new virtual memory and let the swap file grow arbitrarily on the operating system level. With an explicit limit, this growth is capped.

Example configuration

Memory_Quota=4096
With Memory_Quota=4096, the server may allocate at most 4096 MB (4 GB) of virtual memory. HCL does not specify the concrete value numerically — it should fit the RAM equipment and the number of simultaneously running tasks.

Notes & pitfalls

  • HCL minimum value is 4 MB — anything lower is not permitted.
  • Too low a limit can lead to out-of-memory effects and crashing tasks — dimension very carefully and monitor with show stat mem.*.
  • According to HCL there is no direct GUI equivalent; the value can be maintained via the NOTES.INI Settings tab of a configuration document.

Sources (HCL Product Documentation)