Configuration and Tuning GPFS for Digital Media ... - IBM Redbooks

Interfaces insure
openness to a
wide range of
production,
content
management
and metadata
systems
ADMIRA Interfaces
Fast online access
(best effort)
Figure 1-10 The components of ADMIRA
ADMIRA Engine
Essence storage
Tape robotics and
other mass storage
Bandwidth-controlled
Access
(i.e. for streaming)
ADMIRA Agents
Online-cache Tape-archive Streaming-Cache Self-Managed Cache
Automatic management of
related data
(i.e. numerous key frames)
Agents transport
and manipulate
essences
Storage
management
enables an
economic
storage
system mix
meeting
diverse
access and
distribution
requirements
As ADMIRA relies on already available functions, it only requires the following
additional components:
► A database - currently IBM DB2 or Oracle are supported
► A backup and restore solution - IBM Tivoli® Storage Manager (TSM)
► An application server - IBM WebSphere® Application Server (optional)
ADMIRA relies on TSM, therefore being able to address media issues, like partial
file retrieve in relation to time code. The database is used to store metadata,
which means in this case media essence related information, i.e., file size or file
format. The database also stores the tape usage numbers (how many times a
tape was mounted) retrieved from TSM, and uses this information for tape quality
management functions (e.g., to determine when a physical tape needs to be
replaced for avoiding losing data due to tape media failure). The Web based
clients require IBM WebSphere Application Server in addition.
Figure 1-11 on page 24 shows the overall collaboration of all components
involved.
Chapter 1. Introduction to digital media 23