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Glossary
SDLT 600A Product Manual
144
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 - Commonly known as PCB(A) for
Printed Circuit Board (Assembly).
Q
QEZ
An Application Specific Integrated Circuit (ASIC) for the 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.
SDLT
Super Digital Linear Tape.
Seek
The movement of a read/write head to a specific data track.
Server
This is a FTP server embedded in the SDLT 600A firmware.
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.
SITE
This command is used for site-specific commands. Compliant to
FTP norm.
SRAM
S
tatic RAM. A memory chip that requires power to hold its
content.