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What is the difference between "cluster log-forwarding" and "EMS notification"?

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Applies to

  • ONTAP 9
  • Cloud Volumes ONTAP (CVO)

Answer

Cluster Log-Forwarding:
  • Purpose: Offloads ONTAP events to a remote syslog server for secure storage and audit purposes.
  • Configuration: Uses the cluster log-forwarding create command to set up destinations for remote logging.
  • Parameters: Includes destination host, port, protocol (e.g., udp-unencrypted, tcp-unencrypted, tcp-encrypted), server identity verification, syslog facility, and message format among others.
  • Security: Ensures the integrity of event auditing by securely offloading logs to limit the scope of a breach.
EMS Notification:
  • Purpose: Sends notifications of events defined by an event filter to one or more destinations (e.g., email, syslog, SNMP traphost).
  • Configuration: Uses the event notification create command to set up notifications based on event filters.
  • Example: event notification create -filter-name filter1 -destinations email_dest,syslog_dest,snmp-traphost
Each of these features provides different methods for handling and forwarding event data generated by the ONTAP system.

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