Managing VMware Alerts

OpManager fetches events from each ESX Host, similar to SNMP traps. Currently we support important events, and this list is updated every release. Apart from host events, OpManager also monitors threshold for critical performance indicators and raises alerts. The complete list of threshold violation alerts and supported events are shown below in Table 1 and Table 2 respectively.

To change the pre-set threshold values for each performance monitor, go to the snapshot page of the host or VM. For the hosts, check for Inventory Details-> Monitors section. For VMs, check for Monitors-> VM Performance Monitors. All the VM specific performance monitors are grouped under 'VM Performance Monitors'.

Table 1: List of Threshold Monitors for critical performance indicators 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: List of 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)
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