ADIC 6-00026-01 Rev A Virtually, System Size, Unlimited File

AMASS Overview

•Prioritizing reads-from-volumes over writes-to-volumes

UNIX Server where

AMASS is installed.

WRITES are written to cache.

	UNIX Server	From cache, WRITES
		are written to volumes
READS are cached the same way.	Cache is on the hard disk.	in the storage device.

Configurable Cache

VirtuallyUnlimited FileSystem Size

The cache size can be configured to take advantage of both the application being used and the system environment where AMASS is installed.

Applications running database tables in the library, may need a larger cache configuration to optimize the number of cache hits and allow updates to table headers to be predominantly cache IO.

The cache parameters are configured during installation. For information on sizing the cache, refer to Installing AMASS.

Although every attempt is made to keep files under a specific directory on one volume, files can span media. Consequently, a directory can reside on more than one volume.

Regardless of the physical size, all the volumes appear as a single logical device, of admittedly large capacity. AMASS supports a maximum of 65,000 volumes.

1-10 Online Archiving with AMASS 6-00026-01 Rev A