vCenter Server provides a list of default alarms, which monitor the operations of vSphere inventory objects. You only need to set up actions for these alarms.

Some alarms are stateless. vCenter Server does not keep data on stateless alarms and neither computes nor displays their status. Stateless alarms cannot be acknowledged or reset. Stateless alarms are indicated by an asterisk next to their name.

Table 1. Default vSphere Alarms

Alarm Name

Description

Host connection and power state

Monitors the power state of the host and whether the host is reachable.

Host CPU usage

Monitors host CPU usage.

Host memory usage

Monitors host memory usage.

Virtual machine CPU usage

Monitors virtual machine CPU usage.

Virtual machine memory usage

Monitors virtual machine memory usage.

Datastore usage on disk

Monitors datastore disk usage.

Note:

This alarm controls the Status value for datastores in vSphere Web Client. If you disable this alarm, the datastore status is displayed as Unknown.

Virtual machine CPU ready

Monitors virtual machine CPU ready time.

Virtual machine total disk latency

Monitors virtual machine total disk latency.

Virtual machine disk commands canceled

Monitors the number of virtual machine disk commands that are canceled.

Virtual machine disk reset

Monitors the number of virtual machine bus resets.

License inventory monitoring

Monitors the license inventory for compliance.

License user threshold monitoring

Monitors whether a user-defined license threshold is exceeded.

License capacity monitoring

Monitors whether a license capacity is exceeded.

The host license edition is not compatible with the vCenter Server license edition

Monitors the compatibility of the vCenter Server and host licence editions.

Host flash capacity exceeds the licensed limit for Virtual SAN

Monitors whether the flash disk capacity on the host exceeds the limit of the Virtual SAN license.

Expired Virtual SAN license

Monitors the expiry of the Virtual SAN license and the end of the evaluation period.

Errors occurred on the disk(s) of a Virtual SAN host

Default alarm that monitors whether the host disks in the Virtual SAN cluster have errors.

Timed out starting Secondary VM *

Monitors whether starting a secondary virtual machine has timed out. .

No compatible host for Secondary VM

Monitors the availability of compatible hosts on which a secondary virtual machine can be created and run.

Virtual machine Fault Tolerance state changed

Monitors changes in the Fault Tolerance state of a virtual machine.

Virtual Machine Fault Tolerance vLockStep interval Status Changed

Monitors changes in the Fault Tolerance Secondary vLockStep interval.

Host processor status

Monitors the host processors.

Host memory status

Monitors host memory usage.

Host hardware fan status

Monitors host fans.

Host hardware voltage

Monitors host hardware voltage.

Host hardware temperature status

Monitors the temperature status of the host hardware.

Host hardware power status

Monitors the host power status.

Host hardware system board status

Monitors the status of host system boards.

Host battery status

Monitors the battery status of hosts.

Status of other host hardware objects

Monitors other host hardware objects.

Host storage status

Monitors host connectivity to storage devices.

Host IPMI System Event Log status

Monitors the capacity of the IPMI system event log.

Host Baseboard Management Controller status

Monitors the status of the Baseboard Management Controller.

Host error *

Monitors host error and warning events.

Virtual machine error *

Monitors virtual machine error and warning events.

Host connection failure *

Monitors host connection failures.

Unmanaged workload detected on SIOC-enabled datastore

Monitors the unmanaged I/O workload on a SIOC-enabled datastore.

Thin-provisioned volume capacity threshold exceeded

Monitors whether the thin provisioning threshold on the storage array exceeds for volumes backing the datastore.

Datastore capability alarm

Monitors the change in the capability status for volumes backing the datastore.

VASA provider disconnected

Monitors the changes in the connection state of VASA providers.

VASA Provider certificate expiration alarm

Monitors whether VASA provider certificates are getting close to their expiry date.

VM storage compliance alarm

Monitors the virtual disk compliance with the object-based storage.

Datastore compliance alarm

Monitors wether the virtual disk on the datastore complies with the object-based storage.

Refreshing CA certificates and CRLs for a VASA provider failed

Monitors whether the refreshing of CA certificates and CRLs for some of the VASA providers has failed.

Insufficient vSphere HA failover resources

Monitors the sufficiency of failover cluster resources required for vSphere High Availability.

vSphere HA failover in progress

Monitors the failover progress of vSphere High Availability.

Cannot find vSphere HA master agent

Monitors whether vCenter Server is able to connect to a vSphere High Availability master agent.

vSphere HA host status

Monitors the host health status reported by vSphere High Availability.

vSphere HA virtual machine failover failed

Monitors whether a failover operation that uses vSphere High Availability failed.

vSphere HA virtual machine monitoring action

Monitors whether vSphere High Availability has restarted a virtual machine.

vSphere HA virtual machine monitoring error

Monitors whether vSphere High Availability failed to reset a virtual machine.

vSphere HA VM Component Protection could not power off a virtual machine

Monitors whether vSphere High Availability VM Component Protection cannot power off a virtual machine with an inaccessible datastore.

License error *

Monitors license errors.

Health status changed *

Monitors changes to service and extension health status.

Virtual machine component protection restart error

Monitors whether the vSphere HA VM Component Protection fails to restart a virtual machine.

Storage DRS recommendation

Monitors Storage DRS recommendations.

Storage DRS is not supported on a host

Monitors and alerts when Storage DRS is not supported on a host.

Datastore cluster is out of space

Monitors whether a datastore cluster runs out of disk space.

Datastore is in multiple datacenters

Monitors whether a datastore in a datastore cluster is visible in more than one data center.

vSphere Distributed Switch VLAN trunked status

Monitors changes in vSphere Distributed Switch VLAN trunked status.

vSphere Distributed Switch MTU matched status

Monitors changes in vSphere Distributed Switch MTU matched status.

vSphere Distributed Switch MTU supported status

Monitors changes in vSphere Distributed Switch MTU supported status.

vSphere Distributed Switch teaming matched status

Monitors changes in vSphere Distributed Switch teaming matched status.

Virtual Machine network adapter reservation status

Monitors changes in the reservation status of a virtual machine network adapter.

Virtual machine Consolidation Needed status

Monitors changes in the virtual machine Consolidation Needed status.

Host virtual flash resource status

Monitors the Flash Read Cache resource status on the host.

Host virtual flash resource usage

Monitors the Flash Read Cache resource usage on the host.

Registration/unregistration of a VASA vendor provider on a Virtual SAN host fails

Default alarm that monitors whether the registration or unregistration of a VASA vendor provider on a Virtual SAN host fails.

Registration/unregistration of third-party IO filter storage providers fails on a host

Default alarm that monitors whether vCenter Server fails to register or unregister third-party IO filter storage providers on a host.

Service Control Agent Health Alarm

Monitors the health status of the VMware Service Control Agent.

Identity Health Alarm

Monitors the health status of the Identity Management Service.

vSphere Client Health Alarm

Monitors the health status of the vSphere Web Client.

ESX Agent Manager Health Alarm

Monitors the health status of the ESX Agent Manager.

Message Bus Config Health Alarm

Monitors the health status of the Message Bus Configuration Service.

Cis License Health Alarm

Monitors the health status of the License Service.

Appliance Management Health Alarm

Monitors the health status of the Appliance Management Service.

Inventory Health Alarm

Monitors the health status of the Inventory Service.

vCenter Server Health Alarm

Monitors the health status of vCenter Server.

Data Service Health Alarm

Monitors the health status of the Data Service.

RBD Health Alarm

Monitors the health status of the vSphere Auto Deploy Waiter.

vService Manager Health Alarm

Monitors the health status of the vService Manager.

Performance Charts Service Health Alarm

Monitors the health status of the Performance Charts Service.

Content Library Service Health Alarm

Monitors the health status of the VMware Content Library Service.

Transfer Service Health Alarm

Monitors the health status of the VMware Transfer Service.

VMware vSphere ESXi Dump Collector Health Alarm

Monitors the health status of the VMware vSphere ESXi Dump Collector Service.

VMware vAPI Endpoint Service Health Alarm

Monitors the health status of the VMware vAPI Endpoint Service.

VMware System and Hardware Health Manager Service Health Alarm

Monitors the health status of the VMware System and Hardware Health Manager Service.

VMware vSphere Profile-Driven Storage Service Health Alarm

Monitors the health status of the VMware vSphere Profile-Driven Storage Service.

VMware Common Logging Service Health Alarm

Monitors the health status of the VMware Common Logging Service.

VMware vFabric Postgres Service Health Alarm

Monitors the health status of the VMware vFabric Postgres Service.

ESXi Host Certificates Update Failure Status

Monitors whether the update of the ESXi host certificates failed.

ESXi Host Certificate Status

Monitors the certificate status of an ESXi host.

ESXi Host Certificate Verification Failure Status

Monitors whether the verification of an ESXi host certificate failed.

vSphere vCenter Host Certificate Management Mode

Monitors changes in the certificate management mode of vCenter Server.

Root Certificate Status

Monitors whether a root certificate is getting close to its expiration date.

GPU ECC Uncorrected Memory Alarm

Monitors the GPU ECC uncorrected memory status.

GPU ECC Corrected Memory Alarm

Monitors the GPU ECC corrected memory status.

GPU Thermal Condition Alarm

Monitors the GPU Thermal condition status.

Network connectivity lost

Monitors the network connectivity on a virtual switch.

Network uplink redundancy lost

Monitors network uplink redundancy on a virtual switch.

Network uplink redundancy degraded *

Monitors network uplink redundancy degradation on a virtual switch.

VMKernel NIC not configured correctly *

Monitors incorrectly configured VMkernel NICs.

Cannot connect to storage *

Monitors host connectivity to a storage device.

Migration error *

Monitors whether a virtual machine cannot be migrated or relocated, or is orphaned.

Exit standby error

Monitors whether a host cannot exit standby mode.

Table 2. Deprecated vSphere Alarms

Alarm name

Description

Cannot connect to network

Monitors the network connectivity on a virtual switch.

IPv6 TSO not supported

Monitors whether the IPv6 TSO packets sent by the guest operating system of a virtual machine are dropped.

SRM Consistency Group Violation

Datastore cluster has datastores that belong to different SRM consistency groups.

Virtual machine high availability error

Monitors High Availability errors on a virtual machine.

Cluster high availability error *

Monitors High Availability errors on a cluster.

Health status monitoring

Monitors changes in the overall health status of vCenter Server components.

Pre-4.1 host connected to SIOC-enabled datastore

Monitors whether a host running ESX/ESXi 4.1 or earlier is connected to a SIOC-enabled datastore.

Host service console swap rates

Monitors host service console memory swap rates.