Managing VMware Alerts

OpManager fetches events from each VCenter / ESX Host, similar to SNMP traps. Currently we support important events, and this list is updated every release. Apart from these events, OpManager also monitors threshold for critical performance indicators and raises alerts.

To change the pre-set threshold values for each performance monitor, go to the monitors section under the snapshot page of the host / VM / Datastore.

To view the complete list of VMware monitors,

  • Go to the Monitors tab in the VMware host's snapshot page.
  • Under the Performance Monitors tab, click on the + sign. This will display a list of all performance monitors available in OpManager.
  • To view the list of Performance monitors for VMware hosts alone, scroll down to the VMware-Host Monitors section.
  • To view the list of Performance monitors for VMs, scroll down to the VMware- VM Monitors section.
  • To view the list of Performance monitors for Datastore, scroll down to the VMWare - Datastore Monitors section.
  • You can also view and add the performance monitors for hosts / vms by clicking on 'Add Monitors' under their corresponding Device Templates.

Table 1: List of few Threshold Monitors for critical performance indicators related to host, datastore & VM's supported by OpManager

S.No. Threshold Monitors Virtual Device Type Resource Severity
1. Host connection Status Host General =2 (notresponding) - Critical
=1 (disconnected) - Warning
2. Host Data Received (avg) Host Network >1000000 KBps - Critical
>800000 KBps - Warning
3. Host Data Transmission (avg) Host Network >1000000 KBps - Critical
>800000 KBps - Warning
4. Host Network Usage (avg) Host Network >4000000 KBps - Critical
>3600000 KBps - Warning
5. Host CPU Utilization (avg) Host CPU > 90% - Critical
> 85% - Warning
6. Host Memory Utilization (avg) Host Memory > 90% - Critical
> 85% - Warning
7. Host Disk Read Latency Host Disk > 50ms - Critical
> 45ms - Warning
8. Host Disk Write Latency Host Disk > 50ms - Critical
> 45ms - Warning
9. Datastore Freespace Host Network < 5GB - Critical
< 10GB - Warning
10. VirtualMachine Data Received (avg) VM Network >125000 KBps - Critical
>100000 KBps - Warning
11 VirtualMachine Data Transmitted (avg) VM Network >125000 KBps - Critical
>100000 KBps - Warning
12. VirtualMachine Network Usage (avg) VM Network >250000 KBps - Critical
>200000 KBps - Warning
13. VirtualMachine CPU Usage (avg) VM CPU > 90% - Critical
> 85% - Warning
14. VirtualMachine Memory Usage (avg) VM Memory > 90% - Critical
> 85% - Warning

 

Table 2: Few of the VCenter / ESX hosts' Events supported by OpManager

S.No. Events Virtual Device Type Severity
1. VmFailedToPowerOffEvent VM Major (Cleared on event 2 or 3)
2. VmPoweredOffEvent VM Clear
3. VmPowerOffOnIsolationEvent VM Clear
4. VmFailedToPowerOnEvent VM Major (Cleared on event 5)
5. VmPoweredOnEvent VM Clear
6. VmFailedToSuspendEvent VM Major (Cleared on event 7)
7. VmSuspendedEvent VM Clear
8. VmFailedToRebootGuestEvent VM Major (Cleared on event 9)
9. VmGuestRebootEvent VM Clear
10. VmFailoverFailed VM Critical (Cleared on event 11)
11 VmPrimaryFailoverEvent VM Clear
12. VmUpgradeFailedEvent VM Major (Cleared on event 13)
13. VmUpgradeCompleteEvent VM Clear
14. VmDisconnectedEvent VM Warning (Cleared on event 15)
15. VmConnectedEvent VM Clear
16. VmDiskFailedEvent VM Major
17. VmRelocatedEvent VM Clear
18. VmRelocateFailedEvent VM Critical (Cleared on event 17)

You can view  the complete list of ESX host / VCenter Events that are supported by OpManager, under Settings -> Monitors -> VMware Events.

Note: OpManager only triggers alarms based on VMware events, and they have to be manually cleared once the issue/notification has been taken care of.