IBM System Storage TS3400 Tape Library Maintenance Information page 286

SR. Service representative, see also CE.
SRAM. Static random access memory.
SS. Status store.
SSL (Secure Sockets Layer). Cryptographic protocols
for secure communications on the internet.
ST. Store.
standard feature. The significant design elements of a
product that are included as part of the fundamental
product.
START. Start maintenance.
subsystem. A secondary or subordinate system,
usually capable of operating independently of, or
asynchronously with, a controlling system.
SUPP. Support.
sync. Synchronous, synchronize. Occurring with a
regular or predictable time relationship.
system-managed encryption. Tape encryption is set up
implicitly through the IBM device driver.
T
tachometer, tach. A device that emits pulses that are
used to measure/check speed or distance.
tape cartridge. A container holding magnetic tape that
can be processed without separating it from the
container.
tape void. An area in the tape in which no signal can be
detected.
TCP/IP. Transmission Control Protocol/Internet
Protocol.
TCU. Tape control unit.
TH. Thermal.
thread/load operation. A procedure that places tape
along the tape path.
TM. Tapemark.
transport mode. End-to-end communications security
in which the end-point computers do the security
processing.
trusted certification. In cryptography, a trustworthy
certificate not registered with a Certificate Authority.
tunnel mode. Port-to-port communications security in
which security is provided to several machines by a
single node.
D-8
TS3400 Tape Library Maintenance Information
U
UART. Universal asynchronous receiver/transmitter.
unload. Prepare the tape cartridge for removal from
the drive.
utilities. Utility programs.
utility programs. A computer program in general
support of the processes of a computer; for instance, a
diagnostic program.
uv. Under voltage.
V
VOLSER. Volume serial number.
volume. A certain portion of data, together with its
data carrier, that can be handled conveniently as a unit.
VPD. Vital product data. The information contained
within the tape drive that requires nonvolatile storage
used by functional areas of the drive, and information
required for manufacturing, RAS, and engineering.
W
word. A character string that is convenient for some
purpose to consider as an entity.
Write. Write command.
WT. world trade.
X
XR. External register.
XRA. External register address register.