Minicom Advanced Systems CMG-DCM manual Flash Status, Tamper lines, Disk Status

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CMG-DCM

Flash Status

This section reports the current contents of the DCM's Flash storage. There may

be one or several partitions of Flash memory in use. If a partition is not in use, it will be empty aside from the standard directory lost+found. Otherwise, one or more GCF-format files will be shown, together with each file's size in bytes and the time it was created (Unix ctime).

Tamper lines

This section, if present, reports the status of the tamper lines relayed to the DCM over an external State of Health interface:

Input	State	Last Closed (Low)		Last Open (High)
0	open	(never)		Wed Jul	7	16:04:48 2004
1	open	(never)		Wed Jul	7	16:04:48 2004
2	open	(never)		Wed Jul	7	16:04:48 2004
3	open	(never)		Wed Jul	7	16:04:48 2004
4	open	(never)	7 16:04:48 2004	Wed Jul	7	16:04:48 2004
5	closed	Wed Jul	7 16:04:48 2004	(never)	7	16:04:48 2004
6	open	(never)	7 16:04:48 2004	Wed Jul	7	16:04:48 2004
7	closed	Wed Jul	7 16:04:48 2004	(never)
8	closed	Wed Jul	7 16:04:48 2004	(never)
9	closed	(never)		(never)
10	closed	(never)		(never)
11	closed	(never)		(never)
12	closed	(never)		(never)
13	closed	(never)		(never)
14	closed	(never)		(never)
15	closed	(never)		(never)

The columns in the table give, in turn, the current state of each switch and when it was last observed to be in each state. The above example shows a typical reading for a set of 9 tamper switches that have not triggered: the normally-

closed switches show the current time under “Last Closed”, and the normally- open switches under “Last Open”. All other fields show (never), indicating that no switches have been observed in the “wrong” state since the DCM was last booted.

Disk Status

This section reports the current state of the DCM's primary hard disk. The module looks on its USB interfaces for an on-board USB hard disk to use as its

primary storage medium. If no suitable storage medium can be found, you will see the message Failed to find a USB disk.

Assuming that the DCM successfully found a primary hard disk, you will see information in a format like this:

FAT32 filesystem has 15 G bytes free

Partition is 37 G bytes (78140097 blocks of 512 bytes)

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Contents CMG-DCM Table of Contents December Inside the DCM Introduction CMG-DCM Inside the DCM Serial port services Network servicesSee .4, Connecting to a local network for full details Overview Installing the CMG-DCMPower supply Connecting to a single computer Connecting over a serial linkConnecting over Ethernet 192.168.0.xUsing an internal modem Connecting over USBConnecting to a local network Gcfgdbset option-namenew-value Wi-Fi Connecting to the InternetConnecting digitizers and external hardware Setting up the CMG-DCMWeb setup Setting up digitizers Using Scream DCM as a data store UsageGeneral notes Gnblocks port-number Page CMG-DCM DCM as a GCF data source Accessing the DCM command line through gcfout Sensor arrays DCM as a network data hub Communicating with digitizers Configuring digitizers Data storage and retrieval Using miniSEED format Real-time data transmission CD1.0 and CD1.1 Troubleshooting DCM installations Cannot Gcfping the DCMs Scream! server Cannot see the DCMs Web site over Http or HttpsCannot connect to the DCMs Scream! server Can Gcfping the DCMs Scream! server, but no data appears DCM is not receiving any data streamsUse the Serial port configuration → port name Web page, or DCM is receiving streams, but they do not contain any data143032 up 34 min, load average 1.24, 1.32 Configuration options GeneralDisk CMG-DCM Serial port configuration CMG-DCM Page Network configuration Ethernet portStatic routes DNS setup Incoming mail setup Outgoing mail setup Remote access Administrators PPP Mgetty Data transfer ScreamScream! Client AutoDRMCD1.0 Http serverHttp client CD1.1 CD1.1 subframe configuration DSS Server configuration Seed Page CMG-DCM Actions Data ViewerIcon bar Stream listDigitizer Setup General digitizer settings Digitizer output control CMG-DCM Trigger criteria CMG-DCM Tap # Rate Bandwidth Samples/s Auxiliary Mux channels Sensor mass control Disk tools Partition, and format diskCheck disk filesystem Flush flashRecent Log Entries Disk filesCamera Network configuration SummaryDNS configuration Data Out Port, Serial Port A, Serial Port BDisk Status Flash StatusTamper lines Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Monitoring Data flowDigitizer status Tamper lines Updating the DCM Over the InternetFrom the hard disk Removing support packagesFirmware Libgconfigdb Appendix a Connector pinouts Appendix A.1 Modular DCM unitsPort a and B Data OUT portUSB connector Network connectorAppendix A.2 Integrated DCM units DM/AM module outputAppendix B Sensor and digitizer types Appendix B.1 Sensor response codesAppendix B.2 Digitizer type codes Digitizer