User's Manual

AMASS Overview
6-00026-01 Rev A Online Archiving with AMASS 1-13
• Allow AMASS to automatically assign a volume from the
space pool to the out-of-space volume group. Do this by
using the AMASS vgpool command to enable space pool
for the specified volume group.
For more information on volume groups, refer to Managing the
AMASS File System.
Uniform Media in
Numerical and
Cleaning Groups
Except for the space pool, a volume group must contain a
homogeneous type of media; therefore, in multifunction
libraries containing both WORM and erasable optical platters, a
numerical volume group can contain WORM or it can contain
erasable media, but it cannot contain both.
Uniform, drive-specific attributes must be in the cleaning group.
Disparate Media in
the Space Pool
If a numeric volume group enabled for space pool runs out of
space, AMASS automatically reassigns a formatted volume
with specific attributes from the space pool to the out-of-space
volume group. Thus, AMASS can continue to write data to the
numeric volume group.
Volumes in the space pool can contain a mixture of tape,
optical, WORM, and erasable media.
Design
Maintains Data
Integrity
The AMASS file system is designed to conform to the standard
UNIX data integrity functions and conventions. Data integrity
elements are described on Page 1-14.