
Remote Management 4-3
In order to start the desired system, use the administrative command
/usr/sbin/cs20wake00:02:56:00:00:fd
on any other system directly connected to the privileged primary Ethernet
network.
4.2.2 Shutdown
The status of a running system is normally monitored using network
connections over the primary (or secondary) Ethernet controllers (that is, using
ICMP or SNMP messages). It is also monitorable via network management
services.
In order to shut down the desired system, use the administrative command
/usr/sbin/cs20standby00:02:56:00:00:fd
on any other system directly connected to the privileged primary Ethernet
network.
NOTE: Tru64 UNIX does not accommodate remote power-off.
4.2.3 Link Status
The power status of a DS20L system is remotely observable using a managed
Ethernet hub or switch. When the system is powered down (in standby mode
with blinking green LED on the front or rear panel), the two Ethernet
controllers have a matching link status: the primary controller is powered by
standby and has active link status (so it can receive the wakeup packet) and the
secondary controller is powered down and has no active link status. When the
system is powered up, both Ethernet controllers have active link status. If
powered down, the secondary controller link is dropped while the primary link
is kept up.
4.3 The WOL Utility
The WOL utility (wake on LAN) generates and transmits a network packet to
power on a remote system. Before you can use the WOL utility, you must enable
the wake-on-LAN feature on the target system.
You must specify the target system’s hardware address. You may optionally
specify the network interface to use in making the connection to the target
system. If no network interface is specified, the WOL utility locates the first
configured network interface and prompts you for confirmation.