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02 Things you need to know
Server
NSF Buffer Pool size limits

The NSF Buffer Pool size in all versions of Domino R5, up to and including 5.0.3, should not exceed 1920MB. To ensure that your settings comply with this requirement, do not set the notes.ini variable NSF_BUFFER_POOL_SIZE above the value 2013265920 and do not set the Notes.ini variable NSF_BUFFER_POOL_SIZE_MB above the value 1920.

In installations with more than 5GB of physical memory, at least one of these two notes.ini variables should be set, and the setting should not reserve more than 1920MB.