Guralp Systems CD1.1 - Manual (Page 79)

Operator's Guide
13 Optional flash memory
The CMG-EAM uses flash memory for its file system and the
standard unit is fitted with 512MB. Of this, around 60MB is
used for the system and, typically, an additional 64MB is used
by GCF buffers. If MiniSEED is used, a further 64MB is required
for buffering, leaving around 384MB available for the various
CD1.1 databases.
This may be insufficient for a complex system or for one where
it is desirable to retain significant frame history. For this
reason, it is possible to order a CMG-EAM fitted with an
additional flash memory module of arbitrary size (limited only
by current industry standards).
The extra flash memory is mounted at /media/flash_module,
so it is not automatically utilised by any Platinum software. To
make use of the additional storage capacity, it is necessary to
reconfigure one or more software modules. The CD1.1
modules that can be reconfigured in this way are given below:
Module: CD1.1 multiplexor (data-mux-cd11)
Parameter: Database directory
Usage: storage area for the frame database
(See Section 4.2.1 on page 22)
Suggested location:
/media/flash_module/data-mux-cd11.n where n is
the instance identifier.
Module: CD1.1 sender (data-out-cd11)
Parameter: Database directory
Usage: storage area for the transmission databases
(See Section 7.3.2 on page 44)
Suggested location:
/media/flash_module/data-out-cd11.n where n is
the instance identifier.
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