Installation guide

Table 21-5. Host Condition and State Triggers
Trigger Name Description Trigger Type
Connection State Current connection state of the host:
n
Connected – The host is connected to the server. For ESX/ESXi hosts,
this is always the state.
n
Disconnected – A user has explicitly shut down the host. In this state,
vCenter Server does not expect to receive heartbeats from the host.
The next time a heartbeat is received, the host is returned to a
connected state and an event is logged.
n
Not Responding – vCenter Server is not receiving heartbeat messages
from the host. After the heartbeat messages are received again, the
state automatically changes to Connected. This state is often used to
trigger an alarm on the host.
State
Console SwapIn Rate
(KBps)
Rate at which the service console kernel is swapping in memory. The
Console Swapin Rate indicates memory pressure in the service console.
A high value is generally a precursor to timeout operations. To fix the
problem, consider adding more memory or ending the memory-intensive
task.
Condition
Console SwapOut Rate
(KBps)
Rate at which the service console kernel is swapping out memory. The
Console Swapout Rate indicates memory pressure in the service console.
A high value is generally a precursor to timeout operations. To fix the
problem, consider adding more memory or ending the memory-intensive
task.
Condition
CPU Usage (%) Amount of physical CPU (MHz) used by the ESX/ESXi host. The
calculation is:
Host CPU Usage (%) = CPU usage [MHz] / (# of physical CPUs x clock
rate [MHz]) x 100
Condition
Disk Usage (KBps) Sum of the data read from and written to all disk instances on the host. Condition
Memory Usage (%) Amount of physical RAM (MB) consumed by the ESX/ESXi host. The
calculation is:
Host Memory Usage (%) = Consumed Memory [MB] / physical RAM of
server [MB] x 100
Condition
Network Usage (kbps) Sum of data transmitted and received for all the NIC instances of the host. Condition
Power State Current power state of the host:
n
Powered On – The host is powered on.
n
Powered Off – The host is powered off.
n
Suspended – The host is suspended.
State
Swap Pages Write (KBps) Rate at which host memory is swapped out to the disk. Condition
Datastore Condition and State Triggers
VMware provides preconfigured alarms that trigger when datastores undergo certain conditions and states.
Table 21-6 lists the default Condition and State triggers you can set on datastores.
vSphere Basic System Administration
242 VMware, Inc.