Sun Microsystems StorageTek T10000, Руководство оператора

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96174 • Revision EA Glossary 109
system A combination of functionally interrelated interacting mechanical and electrical
elements designed to work as a coherent entity.
T
tape See magnetic tape.
tape cartridge A container holding magnetic tape that can be processed without separating the
tape from the container.
tape drive A device for moving magnetic tape and controlling its movement. (T)
TB See terabyte.
TCP/IP Transmission Control Protocol/Internet Protocol.
terabyte (TB) A unit of measure equal to one trillion (10
12
) bytes of disk or tape storage
capacity.
When referring to memory capacity, one TB equals 1,099,511,627,776 in decimal
notation or 240 bytes.
transmission control
protocol/internet protocol
(TCP/IP) A set of communication protocols that support peer-to-peer connectivity
functions for both local and wide area networks. (IBM)
V
vary offline To change the status of a device from online to offline. When a device is offline,
no data set may be opened on that device. (IBM)
vary online To restore a device to a state where it is available for use by the system. (IBM)
virtual operator panel
(VOP) A software application that allows a user to monitor and perform some
operations on one or more of tape drives remotely.
VolSafe VolSafe (volume safe) is a special feature that provides write once, read many
(WORM) technology to VolSafe-designated tape cartridges. VolSafe permits new
data to only append the tape media, while it prevents erasure or overwrite of
previously written data.
VOLSER 1. VOLume SERial Number. It is usually six characters long and is both the
paper label stuck on the back edge of the cartridge and in the VOLID label that
is recorded, particularly by MVS systems, at the beginning of the media.
2. An alphanumeric label that the host software uses to identify a volume. It
attaches to the spine of a cartridge and is both human- and machine-readable.
VOP See virtual operator panel.