EMC DL3D 1500 Administrator's Manual page 233

Glossary
Synchronize To synchronize a tape drive and volume is to ensure that all data
written to the tape drive has been recorded to the recording medium
of that volume.
This verb is normally used without one or more of the objects, e.g.
"the data is synchronized" or "the data was synchronized to tape".
T
Terabyte A unit of measure for digital data equal to approximately 1,000
gigabytes, or 1,099,511,627,776 bytes.
V
Virtual tape cartridge An emulation of a real, physical tape cartridge, including a type, any
(VTC) nonvolatile memory associated with the case housing, and that
recording medium. Also referred to as a virtual tape volume or a
virtual volume.
Z
Zoning
A method of arranging Fibre Channel devices into logical groups
over the physical configuration of the fabric. SAN zoning may be
utilized to implement compartmentalization of data for security
purposes. Each device in a SAN may be placed into multiple zones.
EMC DL3D 1500 and DL3D 3000 Administrator's Guide 233