GLOSSARY
G.16
Read/Write Head.
The mechanism by which data is recorded on
to magnetic media in a tape or disk drive system. See Read After
Write.
Reed-Solomon Error Correction.
An error correction technique
based on research done by Irving Reed and Gustave Solomon at
MIT’s Lincoln Laboratory in the 1960’s. First used to check the
accuracy of data received from the Voyager spacecraft.
Restore.
To replace data on the hard drive from another media
device.
S
SAN.
See Storage Area Network
SCSI.
Acronym for small computer system interface. An American
National Standards Institute (ANSI) interface between the com-
puter and peripheral controllers. Apple Macintosh systems and
many UNIX operating system workstations use the SCSI interface.
Scalability.
Refers to the capability provided by the DLTtape system
family to read tapes from previous generations of DLTtape systems.
Allows users to upgrade to a faster, higher capacity DLTtape system,
yet still be able to read tape recorded on an older system. The ability
to add additional devices or cartridges to a tape library, thus
allowing the library to grow as needs grow. The term also refers to
the ability of DLTtape library systems to be upgraded with a higher
performance DLTtape drive and thus provide more capacity and
performance in the same footprint. See backward compatibility.
Seek.
The movement of a read/write head to a specific data track.
Self Cleaning Head.
Found in all DLTtape drives. Tiny ridges on
either side of the DLTtape drive read/write head continuously wipe
the tape clean as it passes over the head. This is why there is no
periodic cleaning prescribed for DLTtape drives.
