NFS Performance Tuning for HP-UX 11.0 and 11i Systems

nfs performance tuning for hp-ux 11.0 and 11i systems page 11

Notes:

Page 11July 22, 2002

Network Troubleshooting Checklist

• Network throughput problems are usually caused by

packets being dropped somewhere on the network

Ø Defective hardware

– network interfaces, cables, switch ports, etc.

Ø Mismatching configuration settings

– make sure interface cards settings match network switch

– speed settings, duplex (i.e. half vs. full)

Ø Collisions

Ø Network switch buffer memory exhaustion

Ø Socket overflows

network

In most cases, network throughput problems are caused by packets being dropped

somewhere on the network. Some of the more common reasons why packets or

requests are dropped include:

• Defective hardware (i.e. network interfaces, cables, switch ports, etc.)

• Mismatching configuration settings between interface cards and network

switch equipment, such as the speed and duplex settings (i.e. half vs. full)

• Collisions (this is typically not a problem with switched networks)

• Switch buffer memory exhaustion

• Socket overflows

In some cases, the only tools that can detect these types of problems are external

analyzers and reporting tools specific to your network hardware.