Glossary
SDLT 600 Product Manual
122
Positive Engagement Buckling Mechanism
A highly robust, solidly
engineered media leader-buckling mechanism for heavy-duty-cycle
automated environments.
POST
Power-on Self-Test. When power is applied to the tape drive, it
performs a POST.
PRML
Partial Response Maximum Likelihood is a method for converting
the weak analog signal from the head of a magnetic disk drive into a
digital signal. Also see
Advanced PRML
.
PWA
Printed Wiring Assembly.
Q
QEZ
An Application Specific Integrated Circuit (ASIC) for the SDLT 600
tape drive.
R
Restore
To replace data on the hard drive with data obtained from
another media device.
RoHS
Restrictions on Hazardous Substances is an EU directive that
restricts, and in some cases bans, the use of certain compounds in the
manufacture of electronic equipment. RoHS mandates that new electrical
and electronic equipment put on the market does not contain lead,
mercury, cadmium, hexavalent chromium, poly-brominated biphenyls
(PBB), or poly-brominated diphenyl ethers (PBDE).
S
SAN
Storage Area Network.
SCSI
Small Computer System Interface. An American National
Standards Institute (ANSI) standard for the interface between a computer
and peripheral controllers.
SDLT
Super Digital Linear Tape.
Seek
The movement of a read/write head to a specific data track.
Server
A powerful computer system with a large tape drive capacity
that serves the information access and communication needs of multiple
users.
Shelf Life
T
he length of time that media can be stored without losing its
magnetic strength. For Super DLTtape II media, this period is 30 years or
more.
SI
The International System of Units.
