Firewall recommendations for Performance Monitoring tool

The IBM Spectrum Scale™ system uses the following ports for the Performance Monitoring tool to work.

Table 1. Recommended port numbers that can be used for Performance Monitoring tool

Port Number	Protocol	Service Name	Components that are involved in communication
4739	TCP and UDP	Performance Monitoring tool	Intra-cluster. This port needs to be accessible by all sensor nodes that are sending performance monitoring data.
8123	TCP	Object Metric collection	Intra-cluster
8124	TCP	Object Metric collection	Intra-cluster
8125	UDP	Object Metric collection	Intra-cluster
8126	TCP	Object Metric collection	Intra-cluster
8127	TCP	Object Metric collection	Intra-cluster
9084	TCP	Performance Monitoring Tool	Starting from IBM Spectrum Scale version 5.0.0, this port is limited to the loopback network interface by default. If the performance data should be available to other nodes, bind the query interface to 0.0.0.0, and limit access of this port to those nodes that should be able to access the collector's query interface.
9085	TCP	Performance Monitoring Tool	Intra-cluster. This port needs to be open to all nodes where the performance collector is running. This port is used for internal communication between the collectors.
9094	TCP	Performance Monitoring Tool	In IBM Spectrum Scale version 5.0.0 and later, this port is limited to the loopback network interface by default. If the performance data should be available to other nodes, bind the query interface to 0.0.0.0, and limit access of this port to those nodes that should be able to access the collector's query interface.