User's Guide

Glossary
Quantum DX-Series Software Interface Guide 315
M
medium changer element A member of the tape DX-Series address space.
Each element is a discrete physical entity that can hold a single tape
cartridge.
medium transport element Mechanism used to move media between
elements within the DX-Series.
message parity error This SCSI-2 message is sent to the DX-Series to
indicate that it received a message byte with a parity error.
message reject This SCSI-2 message is sent to indicate that the last
message or message byte it received was inappropriate or has not been
implemented.
mode sense command Provides a method for a host to obtain parameter
setting of a target device
move medium command Moves a tape cartridge from one element to
another within a DX-Series
N
NVRAM Nonvolatile RAM
no operation message This SCSI-2 message is sent in response to a DX-
Series’s request for a message when the host does not currently have any
other valid message to send.
O
on-line Ready for communications with a host.
P
position to element command Allows the application to move the
robotics to a more advantageous position while the tape drives are busy.
prevent/allow medium removal command Requests target to disable or
enable medium removal by preventing the user from opening load port
or load pack doors.
R
read element status command Determines status of any DX-Series
element, including element type, starting address and number of
elements for which status information is being returned.
ready import command Provided on this unit for compatibility with
existing libraries and provides no function on this DX-Series.
release command Releases the DX-Series or elements that match the
specified release parameters.