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AMASS Overview
GL-6 Glossary 6-00026-01 Rev A
IPI
Intelligent Peripheral Interface. A
high-performance, general-purpose
parallel peripheral interface. The intent
of the IPI is to isolate the host, both
hardware and software, from changes in
peripherals by providing a “function
generic” command set to allow the
connection of multiple types of
peripherals (disks, printers, and tapes.)
J
Journal
The Journal tells AMASS what
transactions—what entries—have acted
upon a file stored on a volume in a
library. It is a daily diary of logged
events. The Journal’s default location in
UNIX is /usr/filesysdb/journal.
Typically, this is a symbolic link pointing
to a separate physical disk to keep the
Journal on a different disk from the File
System Database.
jukebox
A storage device for data containing one
or more drives. Usually, media is loaded
manually. In the AMASS books, the
word library is a generic word that
denotes a jukebox or standalone drive.
See also library and standalone drives.
L
label
A tag affixed to media used for
identification. For example, a bar code
label is used by a robotic device to insure
the robot is moving the proper media. A
shelf label with human-readable
information has the same purpose.
library
A storage device for data containing one
or more drives. Usually, media is loaded
by a robotic (automated) picker. See also
jukebox and standalone drives.
M
mailbox
An opening on the front of a library
where media is loaded into the library
and unloaded to the outside world,
without opening the actual library. This
protects the inside of the library from
dust and dirt. Also known as a mailslot.
media
A storage object that, when mounted in a
drive, is used for read and write
operations. See also volume. Media types
include:
•Tape