Minicom Advanced Systems CMG-DCM Disk tools, Partition, and format disk, Check disk filesystem

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CMG-DCM

5.3 Disk tools

The buttons on this page allow you to perform some important actions on the DCM's primary hard disk. By default, the module looks for a connected 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 when you attempt to perform any of these actions.

Partition, and format disk

Before using the CMG-DCM you should ensure that its primary hard disk is ready to receive data by partitioning and formatting it. The DCM uses a special journalling format for the hard disk which is designed to maintain the integrity of your data at all times. The hard disk is guaranteed to contain a FAT32- compatible filesystem, even if a write operation fails or is aborted suddenly.

Check disk filesystem

Clicking on this button will verify the integrity of the hard disk's filesystem. It is recommended that you do this immediately after installing the device.

Flush flash

Clicking on this button will cause the DCM to dump the current contents of its Flash memory to the hard disk, thus synchronizing it with the most current data. If you want to remove or replace the DCM's hard disk, using this tool will ensure that the outgoing disk is up-to-date. Flush flash does not remove data from the DCM's on-board Flash memory. If you Flush flash and then swap hard disks, the data remaining in memory will later be written out to the new hard disk, causing some overlap between it and the old disk.

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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 Power supply Installing the CMG-DCMOverview 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 General notes UsageDCM as a data store 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 connect to the DCMs Scream! server Cannot see the DCMs Web site over Http or HttpsCannot Gcfping 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 AutoDRMHttp client Http serverCD1.0 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 flashCamera Disk filesRecent Log Entries Network configuration SummaryDNS configuration Data Out Port, Serial Port A, Serial Port BTamper lines Flash StatusDisk Status 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