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Glossary 663
1st ed., 6/30/04 - 312579601
media capacity— The amount of data that can be
contained on storage media and expressed in bytes of
data.
media mismatch— A condition that occurs when
the media value defined in a VOLATTR control
statement does not match the media value recorded in
the CDS VAR record.
micro-software— See µ-software under Symbols.
MIM— Multi-Image Manager. Third-party software
by Computer Associates International, Inc.
mixed configurations— Installations containing
cartridge drives under ACS control and cartridge
drives outside of library control. These
configurations cause the Host Software Component
to alter allocation to one or the other.
MODel— The parameter used to specify model
number.
modem— Modulator/demodulator. An electronic
device that converts computer digital data to analog
data for transmission over a telecommunications line
(telephone line). At the receiving end, the modem
performs the inverse function.
monitor— A device that observes, records, and
verifies selected system activities to determine
significant departure from expected operation.
MSM— Multiple Sessions Management.
Third-party software by Computer Associates
International, Inc.
O
OCR— Optical Character Recognition.
operating system (OS)— Software that controls the
execution of programs that facilitate overall system
operation.
output stack— The part of the cartridge loader that
receives and holds processed cartridges.
over-limit cleaning cartridge— A cleaning
cartridge that has been used more than the value
(limit) specified by either the MNTD MAXclean or
VOLATTR MAXclean settings. This kind of
cartridge may not be able to adequately clean a tape
transport, however, it can be mounted and will
attempt to execute the cleaning process. See also
spent cleaning cartridge.
over-use cleaning cartridge— A cartridge that has a
usage (select) count over the MAXclean value (see
over-limit cleaning cartridge) or that has used up its
cleaning surface (see spent cleaning cartridge).
P
paired-CAP mode— The two forty-cell CAPs in an
enhanced CAP function in paired-CAP mode as a
single eighty-cell CAP.
PARMLIB control statements— Parameter library
(PARMLIB) control statements allow you to
statically specify various operation parameters which
take effect at HSC initialization. Identifying your
system requirements and then specifying the
appropriate control statements permits you to
customize the HSC to your data center.
pass-thru port (PTP)— A mechanism that allows a
cartridge to be passed from one LSM to another in a
multiple LSM ACS.
PCAP— See priority CAP.
physical end of tape— A point on the tape beyond
which the tape is not permitted to move.
playground— The playground is a reserved area of
cells where the robot deposits cartridges that it finds
in its hands during LSM initialization. Normal LSM
initialization recovery processing moves cartridges
from the playground cells to either their home cells
or their intended destinations, but under abnormal
circumstances cartridges may be left in playground
cells.
positional parameter— In command and utility
syntax, operands that are identified by their position
in the command string rather than by keywords (See
keyword parameter).
Positional parameters must be entered in the order
shown in the syntax diagram.
PowderHorn (9310) LSM— A high-performance
LSM featuring a high-speed robot. The PowderHorn
has a capacity of up to approximately 6000
cartridges.