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careful as smoke and ashes are dirt, Hot
ashes are destructive to disks. Food and
drink should be prohibited.
o A cartridge disk should be stored in an
environment that is the same as the drive
operating environment.
o The recommended storage environment is
between 30°F to 149°F with a relative
humidity of 5% to 98%. Abrupt changes in
relative humidity must be avoided to pre
vent warping or disk buckling.
o Cartridge disks must not be exposed to
direct sunlight, intense heat, or close' to
magnetic fields, nor stacked on top of
other packages.
o Cartridge disks should be neatly stacked
flat and stored ina dust-free storage cabi
net made of fire-resistant material.
CARTRIDGE DISK UNITS
4-8
Handling Of Defective Cartridge Disk/Track
Although new cartridge disk packages are
shipped free of defects, spots on the disk itself on
which records cannot be successfully written can
develop, If disk errors begin to occur, a decision
will have to be made by the operator regarding
replacement of the cartridge disk. If the cartridge
disk is physically damaged or should the re
cording surface of the disk become contaminated
or smudged with dirt, then the cartridge disk
must be replaced.
If, however, a bad spot develops on the disk
due to excessive wear on a particular track, then
it may be desirable to flag the affected track via
software as being defective in order to keep the
remainder of the cartridge disk in use, When a
track becomes defective, allocation of space on
the disk must be made around the bad track.
AT04
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