HP ML570 Novell NetWare 6 performance tuning guidelines for ProLiant servers - Page 15

tips and tricks, memory subsystem

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Novell NetWare 6 performance tuning guidelines for ProLiant servers tips and tricks memory subsystem Use the following tips to improve the disk subsystem performance: • Use fast 64-bit PCI/PCI-X Direct Memory Access (DMA) NIC devices with gigabit adapters in the server, if available. • Increase the maximum packet receive buffers (in increments of 10), until you have one packet receive buffer per workstation. • Set the maximum physical receive packet size to the correct size for your topology. For Token Ring and Ethernet topologies, 4202 is adequate. • Set the NCP packet signature option to 0 to reduce network traffic congestion and server processor consumption. • Use network monitoring device to observe network segment utilization. Add another segment, if needed. The amount of available memory for network buffers and disk I/O caching can profoundly affect the performance of a server. Typically the amount of memory in a server should be proportional to the number of users. That is, the higher the number of users, the larger the amount of memory required. Low memory, for instance, could lead to "disk thrashing" which translates to slower response times and low throughputs. Memory is available in many different types. The differences in the technology and speed affect memory access time and the overall server performance. HP servers support several memory technologies. The goal of this section is to create an awareness of the existing types of memory technologies that are currently available. Table 7 provides information on different memory technologies and the potential performance implications. 15

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Novell NetWare 6 performance tuning guidelines for ProLiant servers
tips and tricks
Use the following tips to improve the disk subsystem performance:
•
Use fast 64-bit PCI/PCI-X Direct Memory Access (DMA) NIC devices with gigabit
adapters in the server, if available.
•
Increase the maximum packet receive buffers (in increments of 10), until you have
one packet receive buffer per workstation.
•
Set the maximum physical receive packet size to the correct size for your topology.
For Token Ring and Ethernet topologies, 4202 is adequate.
•
Set the NCP packet signature option to 0 to reduce network traffic congestion and
server processor consumption.
•
Use network monitoring device to observe network segment utilization. Add another
segment, if needed.
memory subsystem
The amount of available memory for network buffers and disk I/O caching can profoundly
affect the performance of a server. Typically the amount of memory in a server should be
proportional to the number of users. That is, the higher the number of users, the larger the
amount of memory required. Low memory, for instance, could lead to “disk thrashing”
which translates to slower response times and low throughputs.
Memory is available in many different types. The differences in the technology and speed
affect memory access time and the overall server performance. HP servers support several
memory technologies. The goal of this section is to create an awareness of the existing
types of memory technologies that are currently available. Table 7 provides information on
different memory technologies and the potential performance implications.
15