The Domino mail server by default checks every connected user once per
minute for new mail and then notifies those users that have new mail. Other
status, like refreshed views, use this same notification method. The IOCP_Disable_Async_Notification=1
setting in NOTES.INI will disable these server notifications, thereby reducing
demands on the server. When
this option is enabled, the Domino server will no longer notify users about
various status, like new mail. Users can only be automatically notified
according to to their Notes client polling behavior.
If IOCP_Disable_Async_Notification=1, then idle users will not get notified
of new mail. However, users actively interacting with the server will receive
these notifications via a different mechanism. Likewise, Notes client polling
for new mail is not effected by the IOCP_Disable_Async_Notification setting.
When this setting is absent, it is equivalent to IOCP_Disable_Async_Notification=0.
If you want to reduce demands on the server, consider using IOCP_Async_Notification_Poll_Time
instead. Completely disabling server initiated notification via IOCP_Disable_Async_Notification
is probably too extreme.
"Best Practices for Lotus Domino on System z: z9 and zSeries"
"IBM Lotus Domino 6.5 for Linux on zSeries Implementation" Dec,
Domino Configuration Tuner:
This setting is included in the DCT
catalog of best practices.