For a background on Earthworm: Earthworm Project Summary.

Currently, we have 3 waveservers running; the SLU waveserver, the CAPE waveserver and the CERI waveserver. Each module has a unique Mod-ID and config file. Communication between modules is done via shared memory or IP:port.

Accessing Earthworm

1) login from wiggles as earthworm

ssh -l earthworm ew-slu
passwd: xxxxxxxx (same as seismic)

2) type

status

This will list the processes and their status. Processes will either be "Alive" or "Dead". If a process is "Dead", see instructions below for restarting.

3)To check the stations at the CAPE waveserver, type

getmenu cape.st.semo.edu:16022

This will list what's on the disk and the time the last packet was sent, which should be current. If the last packet time is not current, you will have to restart that waveserver. See instructions below for restarting.

IP numbers:port for waveservers:

SLU: ew-slu.eas.slu.edu:16022 (165.134.8.140:16022)
CERI: ceri.memphis.edu:16022 (141.225.56.186:16022)
CAPE: cape.st.semo.edu:16022 (150.201.3.197:16022)

Acquiring Data

To check for trigger files,

cd /sac/200205(YYYYMM)

Waveform data slices are extracted and converted to SAC files. If an event triggered the system, the files will be in a subdirectory. Directory names:

20020530_041142_01
YYYYMMDD_HHMMSS_TN
(TN = trigger number)

To manually extract data,

cd /slu
edit the file waveman2disk.d:
vi waveman2disk.d

Change line 66, the "StartTime" values, and line 67, the duration in seconds.

then type: waveman2disk waveman2disk.d

Files will be written to: /sac/200205/20020530_041142_MAN
You should get files from CAPE, CERI and SLU written to this directory. Read into SAC and pick times/phases.

Restarting Earthworm

If a process is not running:
As the earthworm user type restart (process id), where processid is obtained from the status command.

If system is down:
Start from command line via "startstop".
Stop from command line via "pau".

If Cape server is down:
Go to console in Communations room
Start Menu -> Programs -> VNC -> VNC viewer

Screen Input: ip # (should be in memory)
Console Window: password

Start Menu -> restart (yes)

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