ADIC 6-00026-01 Rev A Design, Integrity, Maintains Data

AMASS Overview

• 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	Except for the space pool, a volume group must contain a
Numerical and	homogeneous type of media; therefore, in multifunction
Cleaning Groups	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

Design

Maintains DataIntegrity

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.

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.

6-00026-01 Rev A Online Archiving with AMASS 1-13