esmd(1M) monitors system cabinet environmental conditions --for example, voltage, temperature, fan tray, and power supply. esmd logs abnormal conditions and takes action, if necessary, to protect the hardware.

This daemon is started automatically by the ssd(1M) daemon. Do not start it manually from the command line.

esmd monitors the following boards for out-of-range conditions:

• CPU board
• MaxCPU board
• HPCI board
• HPCI+ board
• Expander board
• Centerplane support board
• SC control board
• SC I/O
• Fan control board
• Power supplies (bulk)

esmd recognizes the following events and alerts the appropriate clients/daemons:

Component insertion

Notices component presence from one polling cycle to the next. esmd sends notification only if that client (hwad(1M), pcd(1M), dsmd(1M), and so on) has requested it for that particular component type.

Component removal

Notices component absence from one polling cycle to the next. esmd sends notification only if that client (hwad, pcd, and so on) has requested it for that particular component type.

PCI card insertion

Notices whenever a PCI card has been inserted into a PCI board.

PCI card removal

Notices whenever a PCI card has been removed from a PCI board.

Board power off

Notices whenever a board is powered off or when board power, previously on, is off.

Board power on

Notices when a board is powered on or when board power, previously off, is on.

Board temperature change

Notices when temperature sensors on a board register a two-degree difference or when a temperature crosses a temperature threshold.

Board voltage change

Notices if a voltage sensor value has changed so that it is close to being out of range and again if the new value is out of range. In this case esmd removes the board from the domain and powers it off.

Board current change

Notices whenever any of the monitored board current values change.

CSB state change

Notices when any of the monitored CSB board properties change.

EXB state change

Notices when any of the monitored EXB board properties change.

CPU state change

Notices when any of the monitored CPU board properties change.

Bulk power state change

Notices when any of the bulk power supply properties change.

Fan tray state change

Notices when any of the monitored fan tray properties change.

PCI card state change

Notices when any of the monitored PCI card properties change.

esmd clients include:

hwad

Hardware access daemon

pcd

Platform configuration database daemon

dsmd

Domain status monitoring daemon

For more information refer to the System Management Services (SMS) 1.4 Administrator Guide.

The following exit values are returned:

0

Successful completion.

>0

An error occurred.

The following file is supported.

/var/opt/SUNWSMS/adm/platform/messages

Stores message files.

See attributes(5) for descriptions of the following attributes.

dsmd(1m), hwad(1m), pcd(1m), ssd(1m)