Guralp Systems CMG-DCM build <10,000 User Manual
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Acquisition Modules and Platinum Firmware
Monitoring Operations
14.3.4 Rebooting
The “Reboot” item on the “Control” menu allows acquisition modules to be
rebooted. CMG-NAMs can be both rebooted and powered off. To reboot from
the command line prompt, use the reboot command.
eam999 ~ # reboot
14.3.5 Services
To control the service from the web interface, select:
Control → Services
This screen gives a list of all configured services: services are the background
programs that read, convert and and write data and carry out the individual
functions of the acquisition module.
The services are presented in three columns. In the first is given the name of
the service and, in italics, its description. The second column shows the word
“Stopped” in red for any services which are not running and, for those which
are running, the PID (process ID, a unique number which the operating
system uses to keep track of running programs) and the date and time that this
instance of the service was started. The third column has buttons allowing
you to stop, start or re-start each service.
It is possible to monitor and control services from the command line using the
ps command and various scripts in /etc/init.local and /etc/init.d.
This should be familiar to Linux users but full details are beyond the scope of
this manual.
14.3.6 RAID Array Services
RAID arrays provide increased data security at the cost of extra storage
devices. They can prevent the loss of data in the event of a single drive
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Issue E - February 2014