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Health Monitor process cshm SwitchCommunityString_Alert

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Category:
ontap-9
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core
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Applies to

  • NetApp CN1610 Cluster Network Switch (CNS)
  • Cisco Cluster Switches
  • ONTAP 9
  • CSHM (Cluster Switch Health Monitor)

Issue

  • The HA Group Notification from xxxxxx  (Health Monitor process cshm: SwitchCommunityString_Alert[xxxxxxxx]) ALERT  is sent from the system at random intervals.
  • system health alert show repots

Node: NodeA
Monitor: cluster-switch
Alert ID: SwitchCommunityString_Alert
Alerting Resource: Switch_A
Subsystem: Switch-Health
Indication Time: Thu May 18 06:09:58 2023
Perceived Severity: Major
Probable Cause: Configuration_error
Description: Cluster switch "Switch_A" with IP address "xxx.xxx.xxx.xxx" is not reachable via SNMP. Incorrect SNMP community string might be configured on the cluster switch.
Corrective Actions: Check the SNMP community string on the cluster switch to verify the expected community string is configured. Use the "system cluster-switch show -snmp-config" command to view the expected community string.
Possible Effect: Cluster switch communication problems and accessibility issues.
Acknowledge: false
Suppress: false
Policy: SwitchCommunityString_Policy
Acknowledger: -
Suppressor: -
Additional Information: Switch Name:Switch_A
Switch Model:NX3232C
Alerting Resource Name: Switch_A
Additional Alert Tags: -

  • CSHMD and MGWD messages examples:

Sun Aug 29 01:53:47 +0100 [node_name: cshmd: hm.alert.raised:alert]: Alert Id = SwitchCommunityString_Alert , Alerting Resource = switch_name1 raised by monitor cluster-switch
Sun Aug 29 01:53:47 +0100 [node_name: cshmd: hm.alert.raised:alert]: Alert Id = SwitchCommunityString_Alert , Alerting Resource = switch_name2 raised by monitor cluster-switch
Sun Aug 29 01:57:38 +0100 [node_name: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process cshm: SwitchCommunityString_Alert[switch_name1].

  • Cluster Network Switch not reachable

Cluster switch "MANMCSCLSSW001" with IP address "switch2_mgmt_IP" is not reachable via SNMP. Incorrect SNMP community string might be configured on the cluster switch.
Cluster switch "MANMCSCLSSW002" with IP address "switch2_mgmt_IP" is not reachable via SNMP. Incorrect SNMP community string might be configured on the cluster switch.

  • Cluster Switch Configuration example:

Device Name                   switch_name1                switch_name2
IP Address                    123.123.123.123             123.123.123.124
Model to display              CN1610                      CN1610
Switch Network                cluster-network             cluster-network
Software Version              1.3.0.2                     1.3.0.2
SNMP Version                  SNMPv2c                     SNMPv2c
Is Discovered                 true                        true
Switch Monitoring Status      false                       false
Reason For Not Monitoring     IP address not reachable    IP address not reachable
Serial Number of the Device   Unknown                     Unknown

 

 

 

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