Megabyte A unit of storage abbreviated as M or MB, equal to 1,024 x 1,024 = 1,048,576
bytes.
MIB Management Information Base. A type of database used to manage the devices
in a communications network.
parallel SCSI A suite of closely related standards in which parallel SCSI devices are connected
in parallel to form busses. Each parallel SCSI standard has its own bus width,
clock speed, maximum throughput, maximum cable length, and maximum number
of devices on the bus.
parallel SCSI
devices
External parallel SCSI devices with two ports, one for the incoming cable and
another for the outgoing cable to the next device. (see daisy chaining).
put An activity in which a robot places a cartridge into a slot or drive.
RAID Redundant Array of Inexpensive Disks. A group of disks that work together to
improve performance. RAID 5 provides some parity protection in case one of
the disks fails.
RMI Remote Management Interface. A web-based interface used to monitor and
control the device. The RMI is a website that is hosted on the device.
robot An electro-mechanical device that transports tape cartridges to and from the
magazines and drives.
robotics unit The unit that includes the robotic components and that controls the movement of
the robot between storage slots, drives, and load ports.
SAS Serial Attached SCSI. A computer bus technology and serial communication
protocol for direct attached storage devices, including disk drives and
high-performance tape drives.
SCSI Pronounced scuzzy, an acronym for Small Computer System Interface, a standard
interface and command set for transferring data between mass storage and other
devices. The host computer uses SCSI commands to operate the device.
Depending on the model, the physical connection between the host computer
and the tape drives will use a parallel SCSI or SAS interface.
SCSI address See SCSI ID.
SCSI devices Computer devices with a SCSI interface. In this document, SCSI devices refers
to devices with a parallel SCSI interface.
SCSI ID Each device on a parallel SCSI bus is identified by its SCSI ID, which is a number
in the range 0–7 on a narrow bus and 0–15 on a wide bus.
SE Single Ended SCSI. The original SCSI bus technology, which uses single ended
signaling — where the signal is referenced to ground. SE SCSI busses have lower
signal rates and much shorter allowed cable lengths. SE SCSI should not be used
with Ultrium tape drives.
slot The location in the magazine in which a tape cartridge is stored. Also called a
cell.
HP StorageWorks 1/8 G2 Tape Autoloader User and service guide 197
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