IBM Systems Magazine, Power Systems Edition - September 2012 - (Page 10)

Insider Insights from the industry Are Your Backups Highly Available? Virtualization blends the best of disk and tape By Ed Ahl B ased on the experiences of Google and other companies, hard disk failure rates in 2012 are projected to be between 7 and 14 percent. That means between 1.4 and 2.9 exabytes of data could be compromised by simple disk failures in 2012. With IDC and Gartner projecting 300 to 600 percent data growth worldwide by 2015, this becomes more than a scary proposition—it could be apocalyptic for you if your data is part of the 7 to 14 percent lost due to disk failures. real-time copies of backup jobs in almost any manner required and subsequently stream data to tape, deduplication technology or a DR site efficiently. The disk front end allows for better overall transfer speed from the host. Backup jobs can be sent to a disk system and quickly streamed to tape drives or deduplication devices simultaneously. Data can also be replicated to a remote DR vault or physical tape library managed in the DR center. In most cases, this can be done without requiring additional management resources by enacting specific data policies within the device. Yet disk vendors continue their marketing onslaught against tape, claiming it’s expensive, unreliable and inefficient. Their argument is hard to substantiate when years of data refute it. Tape is still ideal for the long-term, cost-effective, seldom-restored storage tier. Most enterprises continue to rely on tape for on-site backups, even when they incorporate disk backup (see Figure 1, page 12). Only 18 percent rely on disk alone. A logical path to highly available backups and disaster recovery (DR) is a backup virtualization solution featuring disk and tape. These disk-to-disk-to-tape devices have the intelligence to create near 10 SEPTEMBER 2012

Table of Contents for the Digital Edition of IBM Systems Magazine, Power Systems Edition - September 2012

IBM Systems Magazine, Power Systems - September 2012
Editor's Desk: It's the Economy, Genius
IBM Perspective: Myths and Truths About Cost
Dashboard: Big Bang to Big Data; A Wooden Light Bulb?; CEOs Going Social; Bubble 'Bots
Insider: Virtualization Blends the Best of Disk and Tape
Case Study: Mobile Defender: Jacksonville Public Defender's Office better serves clients with document imaging and mobile access
Cover Story: A Pivotal Position: CFOs link up with CIOs to move business forward
Feature: A New Lease on Your Business Life: Analyst Cal Braunstein offers economic perspective and advice
Focus on Storage: Store More Data With New Real-time Compression Technology
Next: Biometric Identifiers Will Soon Allow CIOs to Worry Less About Authentication Issues
FYI: Hot, Warm and Cold Data Find a Home With Storage Groups
Solutions: SafeNet/i; STORServer Backup Appliance; Robot/SCHEDULE Enterprise; SignHere 1.3.3; Double-Take for AIX 4.0; Presto 4; ARCAD 8.15; Compleo Designer; JD Edwards World A9.3; Change Tracker
Advertisers Index
Snapshot: Enselman Books Through Application Modernization
Reference Point - Global Events, Education, Resources for Power Systems
Women in Technology
Publisher's Letter: Leaders in Technology
CIO Jeanette Horan steers Big Blue into newly charted waters
FIDM's Roxanne Reynolds-Lair explains what makes her tick
IT is right where IBM's Zarina Stanford wants to be
Technology runs in the blood of zNextGener Kristine Harper
Susan Gantner works magic as a programmer and educator
Kirsten Craft enjoys taking on the challenges that come with an IT position
On the Move: These women have also pursued notable IT careers
2012 Power Systems Buyer's Guide Index

IBM Systems Magazine, Power Systems Edition - September 2012