Agilent Technologies 8719D User Manual page 634

The analyzer attempts to allocate memory at the start of a calibration. If insufficient memory
is available, an error message is displayed. It is possible that the CMOS memory might be
fragmented due to the sequence of saving and deleting states of various sizes. So another
alternative would be to store the current state to disk and then press w. The analyzer runs
a memory packer which might regain some previously inaccessible memory. If memory is still
inadequate, delete an instrument state and restart the calibration.
Storing Data to Disk
You can use the internal disk drive or connect an external disk drive for storage of instrument
states, calibration data, measurement data, and plot tiles. (Refer to Chapter 4, "Printing,
Plotting, and Saving Measurement Results", for more information on saving measurement data
and plot files.)
The analyzer displays one file name per stored instrument state when you list the disk
directory. In reality, several flies are actually stored to the disk when you store the instrument
state. Thus, when the disk directory is accessed from a remote system controller, the directory
will show several hles associated with a particular saved state. The maximum number of flies
that you can store on a disk depends on the directory size. You can define the directory size
when you format a disk. See 'Iable 12-3 for the default directory size for floppy disks and hard
disks.
The maximum number of instrument states and calibrations that can reside on a disk is limited
by the available disk space. lb see the available disk space displayed on. the analyzer, press
on your disk type.) In the upper righthand portion of the display, the value displayed as
Bytes free : is the available disk space. If your disk is formatted in IJF, this value is the
largest contiguous block of disk space. Since the analyzer is reporting the largest contiguous
block of disk space, you may or may not see the bytes free number change when you delete
disk space. That number is updated whenever you save to or delete files from the disk.
A disk file created by the analyzer appends a suflix to the file name. The sutllx consists of one
or two characters: the ilrst character is the file type and the second is a data index. (Refer to
124 Preset Stata and Memory Allocation
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