User Guide

18 Server Memory Administration Guide
Server Memory Administration Guide
103-000147-001
August 30, 2001
Novell Confidential
Manual 99a38 July 17, 2001
In MONITOR
1
View the General Information window and note the percentage for the
Long Term Cache Hits.
2 If the percentage of Long Term Cache Hits falls below 90 percent, add
more RAM to the server.
HINT: If you are unable to add more RAM now, a short-term fix can help. We
suggest unloading unneeded NLM
TM
programs or removing DOS from memory.
Remember that these actions treat symptoms only and are not long-term solutions.
Ensuring That Devices Can Access Memory
Some older network boards, such as many ISA and MCA devices, cannot
access memory above 16 MB. To make sure these devices have enough
memory below 16 MB, make sure that the following SET command is in the
STARTUP.NCF file:
SET RESERVED BUFFERS BELOW 16 MEG = 300
The default number of buffers is 300. If necessary, you can increase the value,
but remember that too many reserved buffers can prevent large volumes from
mounting. As soon as possible, upgrade the system to a newer board that can
access higher memory. For a discussion of network bottlenecks, see Matching
Performance Capabilities in the Server Operating System Administration
Guide.
NetWare
®
automatically registers memory above 16 MB so the memory can
be recognized by EISA and PCI machines. If memory above 16 MB isn't being
recognized, you can register memory manually using the REGISTER
MEMORY command. For more information, see REGISTER MEMORY in
Utilities Reference.
IMPORTANT: Use the REGISTER MEMORY command only if absolutely
necessary. Manually registering memory can cause memory fragmentation
problems. Ideally, you should upgrade the system board so that the NetWare
®
automatic memory registration will work.