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AMASS Overview
GL-2 Glossary 6-00026-01 Rev A
bar code
An array of spaces and vertical bars in
varying widths in a machine-readable
pattern. Media is identified by barcode
rather than a physical home storage slot.
BFS
Bitfile Server component of DataMgr.
The BFS maintains storage policies,
assigns bitfile IDs, and manages the
licensing of clients.
bitfile
Bitfile identifies the contents of a
migrated file on DataMgr. Bitfiles are
never modified. If the original file is
subsequently modified, a new bitfile (as
well as a new bitfile ID) is created when
the file is remigrated.
bitfile ID
DataMgr assigns each migrated file a
unique bitfile ID. The bitfile ID is never
changed and is never reused.
C
cache
All data flows into a central cache
located on the UNIX server before being
read from or written to media. By using
the cache, AMASS allows applications to
read and write at hard disk speeds, and to
access the library only when the
requested data is not in the cache. See
also striping.
cleaning group
A special volume group that contains
drive cleaning cartridges. AMASS
automatically uses a cleaning cartridge
from this group when it receives the
appropriate SCSI request sense data from
specific drives.
client
Program running on a workstation
requests the services provided by a
network server. Part of a client/server
architecture.