Specifications

4.6.7 DMP
Command: Dump
Description: The Dump command copies blocks of data from a recording to
a series of files on an external storage device. If any of the files
already exist, they will be overwritten without warning or notifi-
cation. The Copy and Dump commands are not available if there
are any recordings scheduled.
Argument Format: <Tag>’<Start Byte>’<Length>’<Block Size>’
<Device ID>’<Filename>
Argument Type and Size Description
Tag (ASCII-16-A) A file name of the form <MJD>_<Reference Number>.
See section 4.6.2 for more information.
Start Byte (ASCII-15-#) The byte offset within the file to start retrieval at.
Length (ASCII-15-#) The number of bytes to copy. This is limited to the
free space on the target removable storage device.
Block Size (ASCII-15-#) The number of bytes to copy before moving on to the
next file. The files created by this command will be
exactly Block Size bytes with the exception of the last,
which will be determined by the Length specified.
Storage ID (ASCII-64-A) Linux partition (e.g. /dev/sdf1) of an attached ex-
ternal storage device. The device/partition must be
formatted with the ext2 file system to be properly rec-
ognized and usable.
Filename (ASCII-128-A) The name of a file series to create. Acceptable char-
acters are letters, numbers, the underscore and pe-
riod. Each file, including the first, will be named
<Filename>.X, where X is a zero-padded serial iden-
tifier. The width – in characters – of X will be deter-
mined by the number of digits required to represent the
largest id generated, and subject to the name length
restriction of 128 characters.
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