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When are EMS/ASUP alert notifications being generated for 'callhome.arw.activity.seen'?

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ontap-9
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CORE
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Applies to

  • ONTAP 9
  • Anti-ransomware Protection (ARP)

Answer

  • The snapshot creation is silent to the end user when Attack Probability is low, and no alert notification is generated.
  • When 20 or more files are found with this unknown file extension, then it is assumed as an attack.
  • The attack probability will change from low to moderate, and then callhome.arw.activity.seen EMS/ASUP alert notification will be generated.
cluster2::*> event log show -message-name *arw*
Time                Node             Severity      Event
------------------- ---------------- ------------- ---------------------------
12/20/2022 11:27:55 cluster2-01      ALERT         callhome.arw.activity.seen: Call-home message for Vol1 (UUID: c437827d-8062-11ed-9f93-005056a0d3a0) svm1 (UUID: 4574c5fe-8916-11ec-b931-005056a0d3a0)
  • Therefore, it does not have a corresponding arw.analytics event.

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