| A |
| AL_PA |
Arbitrated Loop Physical Address |
| B |
| backup software |
Software that runs on the host computer that
is used to track data backups and execute library functions. |
| board |
A printed circuit assembly (PCA).
Also called a card or adapter. |
| bulk load |
A way to load magazine slots with
tapes. Usually refers to the initial loading of the library. |
| bus |
A common data path over which data
is transported. |
| C |
| calibration |
A routine that is run immediately after a tape
cartridge is loaded, in order to determine if the tape is blank or written,
compatible with the drive, and capable of being written and read. |
| cleaning tape |
A tape that is used only for cleaning a drive. |
| D |
| drive, tape drive |
The device that the library uses to record data
onto tapes. |
| drive cleaning |
A library feature that uses a cleaning tape to
clean a tape drive. |
| Drive module |
The entire assembly that houses the
drive, including the metal housing and connectors. |
| differential SCSI |
A type of SCSI cable that can carry
data a maximum of 25 meters. |
| E |
| event |
A significant function of the library
displayed in the event log that reports drive errors, online/off-line transitions,
drive cleaning, and other information. |
| F |
| fabric |
Switched interconnect methodology
that supports high-speed data routing in Fibre Channel networks. |
| Fibre Channel |
A switched protocol that allows concurrent communication
among workstations, supercomputers, mainframes, data storage devices, and
other peripherals. Fibre channel is capable of transmitting at rates exceeding
one gigabit per second in both directions simultaneously. |
| Fibre Channel Arbitrated Loop (FC_AL) |
Topology that provides a low-cost solution for
attaching multiple Fibre Channel ports in a loop without switches. |
| front panel display |
An LCD (liquid crystal display), equipped with
five soft keys, mounted on the front of the library that controls all library
functions. |
| H |
| hard errors |
Electronic errors in library functions that cannot
be recovered. These errors are recorded in the hard error log. |
| HBA |
Host Bus Adapter - A circuit board residing in
the host system that handles requests to and from the host system and the
library. May also be referred to as a host interface card. |
| home screen |
The view on the front panel display
that provides status information after the library has been powered on.
Also, the default view to which the display returns after being left idle
after approximately three minutes. |
| host |
One or more computers that generate
and communicate data to the library. |
| hub |
A device that provides a multiple
port loop interconnect system to implement a Fibre Channel arbitrated loop
using a physical "star" configuration. |
| HVDS |
High Voltage Differential SCSI. |
| I |
| identity |
A front panel display option that
provides the library's serial number. |
| IP |
Internet Protocol. |
| J |
| jumper cables |
Cables used to connect the library
controller card to a drive. May also be referred to as daisy-chain cables. |
| L |
|
latch stop
|
A spring-loaded device that protrudes
through the mounting rail. The latch stop allows the library to be pulled
approximately two-thirds out of a rack, but prevents it from being pulled
all the way out. |
| LEDs |
Light-emitting diodes, also called
lamps, found in various library assemblies, including drive modules, power
supplies, library cards, and other internal assemblies. A LED communicates
status information about the assembly. |
| library |
A data storage system that stores
electronic data on tape media. |
| M |
| MAC Address |
Media access control address - a
unique hardware-based address that identifies each node on a network. |
| magazine |
A slotted container that resides
in the tape drawers that provides individual slots for five tape cartridges. |
| Magazine access |
A process of loading or unloading
tapes that allows the user to access either one storage slot or five storage
slots. |
| move |
A single library action, such as
loading a tape into a drive, or unloading a tape from a drive. |
| N |
| Nesting |
The menu approach implemented in
the library that uses increasing levels of library control. |
| O |
| odometer |
A front panel option that displays
the odometer logs for power-on hours and moves. |
| originator |
A Fibre Channel term that refers
to the initiating device. |
| P |
| port |
The hardware entity within a node
that performs data communication |
| power (standby) switch |
A low holding voltage remains in
the library even though the library has been powered off. |
| R |
| RMC, remote management card |
A circuit card that provides the
ability to gain access to the library from a computer at a different location. |
| S |
| SCSI |
Small Computer Systems Interface
- A bus that transfers data between the host system and the library. |
| SCSI ID |
The electronic identification number
for each SCSI device in the library. The library SCSI devices are the drives
and the library interface controller card. |
| single-ended SCSI |
A type of cable that is limited to
short distances. |
| soft error |
Electronic errors in library functions
that can be recovered. These errors are recorded in the soft error log. |
| Soft keys |
Five buttons located along the bottom
edge of the front panel display that are used to execute commands on the
display. |
| swap |
Two related library actions, or moves,
such as moving a tape from a slot to a drive, and then back to a slot. |
| switch |
A device that provides a (n by n)
interconnect to allow a port to have full communication bandwidth with any
other port while other communications are occurring. |
| T |
| tape, tape cartridge |
The media that the library uses for
recording data from the host computer(s). |
| TCP/IP |
Transmission control Protocol/Internet
Protocol. |
| terminator |
An electronic device that connects
to the end of the SCSI bus to stabilize bus signals. |
| U |
| UTC |
Coordinated Universal Time. |
| W |
| web-based library administrator |
Describes the interface that allows
you to monitor and manage the library over the network via the remote management
card. |
| wide SCSI |
A 68-pin connector that can be single-ended
or differential in implementation. |
