In Configure > Servers, search or browse to select the server.
In NCP > Server Environment drop-down, select NCP > Caching.
Maximum cached files per sub-directories are the number of files that can be cached for a sub-directory.
Maximum cached files per volume are the number of files that can be cached for a volume.
Maximum cached sub-directories per volume are the number of sub-directories that can be cached for a volume.
Maximum lazy close files are the number of file handles that can be lazy closed.
Specify the required values and click Save.