Novell NETWARE 6-DOCUMENTATION Manual page 2937

In NetWare Remote Manager, click the Set Parameters link in the navigation
frame, click the Traditional File System category link, click the parameter
value link that you want to change, enter the new value, and click OK.
In MONITOR, from the Available Options menu, select Server Parameters >
Traditional File System, select the parameter you want to change, type the new
value, and press Enter.
Strategy 3: Tuning for Name Spaces
When a name space is installed on a traditional NetWare volume, the volume's
Directory Entry Table (DET) must include an additional directory entry for
each file. So, for example, if a volume supports DOS, NFS, and LONG name
spaces, there are three directory entries in the DET for each file instead of just
one.
In such a case, a directory cache buffer with 32 directory entries no longer
represents 32 files, it represents only 10 files, because each file now requires
three directory entries.
This means the efficiency of your directory cache is decreased by a factor
equal to the number of name spaces loaded. Therefore, you might need to add
more memory if you load multiple name spaces. By carefully tuning the
directory cache, you can maintain high performance even under these
conditions.
Before adding name spaces, allow your server to operate in its production
environment for several weeks. This lets NetWare allocate the appropriate
number of directory cache buffers for the native DOS environment.
After this settling-in period, check the Directory Cache Buffer value in the
MONITOR General Information window. This is the highest number of
directory cache buffers allocated since the server was last started.
Use the following formulas to determine the optimum minimum and
maximum number of directory cache buffers.
(# of names spaces, including DOS) x highest number of
Directory Cache buffers since server was last started =
minimum cache buffers
(minimum cache buffers) + 100 = maximum cache buffers
Optimizing Server Memory
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