Have you tried increasing NSF_FOLDER_POOL_SIZE_MB

http://www-10.lotus.com/ldd/nd6forum.nsf/0/3e2644b43f72d04585256ce200351b45?OpenDocument

Is there a maximum of nsf files that can be stored on a single domino server?

D Porter,

NSF_FOLDER_POOL_SIZE_MB didn't work for me.
I tried it with 100, 1024 and 2048.

I'm not aware of a database limit and you'd have to open a PMR for a definitive answer from IBM.

You could try increasing the 2GB of RAM to 8GB as it looks rather low.

There are some debug settings and instructions on how to run a manual NSD:

https://www-10.lotus.com/ldd/dominowiki.nsf/page.xsp?documentId=A46ABC0452DFD94885257A29006732F6&action=openDocument&mode=original

John,

I tried different settings from 200 to 2048

Every time after changing i restart the Domino server (of course)

When none of these settings seemed to work i just removed the setting from the Notes.ini

First, is there a setting for NSF_BUFFER_POOL_SIZE_MB? If it were set long ago, it may well be set too low & need to be commented out.

I removed all the settings

DIRMAN_POOLSIZE_MB
NSF_BUFFER_POOL_SIZE_MB
And NSF_Buffer_Pool_Size_MB

So my ini is clean. where to start?

Start with the debug entries in the notes.ini

CONSOLE_LOG_ENABLED=1
DEBUG_THREADID=1
DEBUG_SHOWLEAKS=1
DEBUG_TRAPLEAKS_SHOWSTACK=1
DEBUG_DUMP_FULL_HANDLE_TABLE=1
DEBUG_SHOW_MEMORY=1
DEBUG_TRAPLEAKS=826d

The DEBUG_TRAPLEAKS=826d entry is for the NSF directory manager and the DEBUG_THREADID=1 may show you what process is triggering the low memory event and you can go from there.

From the OS - you may want to run performance manager and monitor the disk queue length on the disk with the Domino data.  If Domino is having to wait on the disk so it can process NSF files this could have an impact on long open handles on a large number of NSF files.

Additional reading: http://www-01.ibm.com/support/docview.wss?uid=swg27036159&aid=1