Dell PowerVault TL2000 Dell Model TL2000/TL4000 Tape Library- User's Guide - Page 273

liquid crystal display (LCD). A low-power display technology used in computers and other I/O devices. loadable. Having the ability to be loaded. LTO cartridge memory (LTO-CM). Within each LTO Ultrium data cartridge, an embedded electronics and interface module that can store and retrieve a cartridge's historical usage and other information. LVD. SCSI Bus Low Voltage Differential M magnetic tape. A tape with a magnetical surface layer on which data can be stored by magnetic recording. MAP. Maintenance analysis procedure. mask. A pattern of characters that controls the retention or elimination of portions of another pattern of characters. To use a pattern of characters to control the retention or elimination of portions of another pattern of characters. master file. A file used as an authority in a given job and that is relatively permanent, even though its contents may change. Synonymous with main file. MB. Mega Byte (usually expressed as data rate in MB/s or MB/second). media capacity. The amount of data that can be contained on a storage medium, expressed in bytes of data. media-type identifier. Pertaining to the bar code on the bar code label of the Ultrium Tape Cartridge, a 2-character code, L1, that represents information about the cartridge. L identifies the cartridge as one that can be read by devices which incorporate LTO technology; 1 indicates that it is the first generation of its type. mega. One million of. meter. In the Metric System, the basic unit of length; equal to approximately 39.37 inches. micro. One millionth of. microcode. (1) One or more micro instructions. (2) A code, representing the instructions of an instruction set, implemented in a part of storage that is not program-addressable. (3) To design, write, and test one or more micro instructions. (4) See also microprogram. microdiagnostic routine. A program that runs under the control of a supervisor, usually to identify field replaceable units. microdiagnostic utility. A program that is run by the customer engineer to test the machine. microinstruction. A basic or elementary machine instruction. microprogram. A group of microinstructions that when executed performs a preplanned function. The term microprogram represents a dynamic arrangement or selection of one or more groups of microinstructions for execution to perform a particular function. The term microcode represents microinstructions used in a product as an alternative to hard-wired circuitry to implement certain functions of a processor or other system component. MIM. Media information message. mm. Millimeter. modifier. That which changes the meaning. mount a device. To assign an I/O device with a request to the operator. MP. Microprocessor. ms. Millisecond. MSG. Message. multipath. Pertaining to using more than one path. N N/A. Not applicable. node. In a network, a point at which one or more functional units connect channels or data circuits. NVS. Nonvolatile storage. A storage device whose contents are not lost when power is cut off. O oersted. The unit of magnetic field strength in the unrationalized centimeter-gram-second (cgs) electromagnetic system. The oersted is the magnetic field strength in the interior of an elongated, uniformly wound solenoid that is excited with a linear current density in its winding of one abampere per 4π centimeters of axial length. offline. Pertaining to the operation of a functional unit without the continual control of a computer. Contrast with online. online. Pertaining to the operation of a functional unit that is under the continual control of a computer. Contrast with offline. OPER. Operation. ov. Over voltage. Glossary I-5