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AMASS Overview
6-00026-01 Rev A Online Archiving with AMASS 1-15
As an aid in volume verification, the system administrator
enters either a bar code or a user-defined label when introducing
a volume to the File System Database. At the same time,
AMASS assigns the volume a unique numerical ID. From then
on, AMASS tracks the volume by this unique identifier and
verifies the volume by using either bar codes or headers.
Increased
Throughput
The way AMASS handles the operations listed below has
increased throughput thereby improving performance:
• Tape rewind and eject operations run asynchronously. Tapes
are returned to their home storage slots depending on which
drive first becomes available.
• Operating systems that support asynchronous
operations only: IO requests are asynchronously queued
when you enable this parameter during AMASS
installation.
Scattered Writes
Improves
Performance
When AMASS receives more than one request to write to the
same volume group, AMASS uses a single drive, by default, to
write to one volume at a time. However, you can improve
performance by enabling scattered writes.