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Be careful when loading multiple name space modules. Loading multiple modules not only requires more memory, but also reduces the total number of files that can be stored on that volume.

Utility NLMs


This category includes any kind of NLM that doesn’t fall into the other three categories. More than 70 percent of NLMs on a NetWare server are of this type. These NLMs typically have the file extension .NLM. Examples include:


■    MONITOR.NLM, which monitors the server


■    NWCONFIG.NLM, which is a NetWare configuration NLM


■    NDPSMGR.NLM, which is the NDPS (Novell Distributed Print Services) manager that loads the NetWare printing manager


As mentioned, a great deal of third-party support is available for NetWare. Manufacturers write software for NetWare servers in the form of NLMs. Most hardware manufacturers write LAN and disk-driver NLMs so that NetWare will run on their server platforms. Additionally, some companies write special utility NLMs, such as backup and management utilities, for NetWare servers. But, with the advent of NetWare 5 and the inclusion of server-based JVM (see the sidebar titled “Java, Anyone?” that appeared earlier in this chapter), several hundred more server applications will soon become available.


One type of utility NLM that deserves special mention is new with NetWare 5. The Platform Support Module (PSM) enables NetWare 5 to communicate with a multiprocessor architecture. Each PSM is characterized by the extension .PSM. For example, the MPS14.PSM file provides NetWare with support for Intel Multiprocessor Specification version 1.4. Once loaded, this file enables NetWare to use the multiprocessor functions of any server that follows the MPS 1.4 specification.

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