HP ESL E-series Tape Libraries - Manual (Page 171)

MTTR Mean Time To Repair
NEMA National Electrical Manufacturers Association
Network interface
Card (NIC) A NIC is a device that handles communication between a device and other
devices on a network.
NVRAM Non-Volatile Random Access Memory is a type of memory that retains its contents
when power is turned off. One type of NVRAM is SRAM that is made non-volatile
by connecting it to a constant power source such as a battery. Another type of
NVRAM uses EEPROM chips to save its contents when power is turned off. In
this case, NVRAM is composed of a combination of SRAM and EEPROM chips.
Picker A mechanical component of the extension axis assembly (robotics) which grips
and holds a tape cartridge in transit.
Robotics As used in the context of automated tape libraries; the X-axis, Y-axis, and Z-axis
mechanical assemblies inside the library used to move tape cartridges.
RS-232C Short for Recommended Standard-232C, a standard interface approved by the
Electronic Industries Association (EIA) for connecting serial devices. This standard
is for asynchronous transfer between computer equipment and accessories. Data
is transmitted bit by bit in a serial fashion. The RS-232 standard defines the
function and use of all 25 pins of a DB-25 type connector.
SCSI Small Computer System Interface. An American National Standards Institute
(ANSI) communications standard for attaching peripheral equipment to computers.
SCSI ID A unique address (0 to 15) assigned to each device on a SCSI bus.
SCSI over IP
Protocol (SIPP) SIPP enables a library to transport SCSI commands through the IC's FC port to
the robotics controller's Ethernet port. In a library with multiple ICs, a designated
IC (the SIPP Master) receives and implements robot commands from the host.
SCSI-2 A second generation SCSI interface which includes command sets for magnetic
and optical disks, tapes, printers, processors, CD-ROMs, scanners, medium
changers, and communication devices.
SDLT Super Digital Linear Tape is a Quantum tape drive and tape cartridge
specification offered in three ranges of capacity and transfer rates for workgroup,
mid-range, and enterprise needs.
SIPP See SCSI over IP protocol
SNMP Short for Simple Network Management Protocol, a set of protocols for managing
complex networks.
Take-up leader The ring at the beginning of a tape in a cartridge.
Tape drive
controllers A device that controls the transfer of data from a host to a tape drive and vice
versa.
Terminator Special electrical resistors (terminators) are installed in the SCSI devices at each
end of the SCSI bus and are not installed in other devices on the bus. The SCSI
bus must be properly terminated at both ends so that commands and data can
be transmitted to and from all devices on the bus.
Ultrium See LTO-3
HP StorageWorks ESL E-Series Tape Library 171