BPCSS0050W Performance data could not be collected for device device name because the device or data source cannot be reached (reason reason code). The current samples are skipped.

Explanation

The current attempt to retrieve a set of performance data from the device failed.

No performance data is inserted for the device in this time period.

The next performance data sample that is recorded into the database might represent an average over more than the configured interval length.

The immediate operation of the running performance monitor is unaffected.

The reason code can be used to help identify the exact cause of the problem encountered:

  • Reason Code 0 indicates that the exact reason for the failure could not be determined.
  • Reason Code 1 indicates a bad target (device or data source) address. This condition can occur when the user-specified host name or IP address, or the target port number are invalid such that they would cause the formation of an invalid URL or IP address. This type of failure is rare and can usually also be identified by a java.net.UnknownHostException printed in the trace logs.
  • Reason Code 2 indicates the problem to be an unknown target address. This condition can occur when a host name rather than an IP address was specified as target address, and:
    • either the network is down,
    • the specified host name cannot be resolved (for example, the name server cannot be contacted, or the name server is down, or the specified host name is not known to the name server), or
    • the specified host name can be resolved by the name server but no longer exists on the network.
    This type of failure can usually also be identified by a java.net.UnknownHostException printed in the trace logs.
  • Reason Code 3 indicates the problem to be an unreachable target address. This condition can occur when an IP address rather than a host name is specified as target address, and either the network or a part of the network is down or is blocked by a firewall (the host cannot be contacted), or the specified IP address does not exist on the network. This type of failure can usually also be identified by a java.net.NoRouteToHostException in the trace logs.
  • Reason Code 4 indicates the problem to be an unresponsive target. This condition can occur when the target server is powered off, or when the server is not listening on the port, which is the target of the communication. For example, when the web server or SMI-S provider is not operational. This type of failure can usually also be identified by a java.net.ConnectException printed in the trace logs.
  • Reason Code 5 indicates a communication timeout for communication that uses UDP rather than TCP, for example when you use SNMP data sources. This condition can occur when the target server cannot be reached, or when the SNMP data source is disabled on the target server, or when the SNMP port (161) is blocked by a firewall.

Action

If the problem persists for an hour or longer, ensure that your device and data source (if applicable) are operational.

Also, ensure that a network path exists between the IBM Spectrum Control server and the device or data source, including any appropriate firewall pass-throughs.

If nothing is wrong with the device or device agent, or with the network path, try canceling and restarting the performance monitor job.

If the problem is still not resolved, contact IBM Support.