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Adaptive
Backup: Beyond Due Diligence
By
DANIEL HARDMAN
Backups are a staple of any network. However, while created to help
ensure the ongoing availability of data, backups are more often the
last resort in the wake of a disaster. Transferring data onto tape through
either a complete or incremental backup is one issue, but actually being
able to access that data is another.
Disk-to-disk, imaged-based back-up systems ease many of the challenges
associated with traditional backups. These solutions make quick work
of restorations, whether full system, bare metal, or individual files
and folders. What’s more, set-and-forget disk backup solutions
are now available that require minimal human intervention, increasing
the convenience and speed of doing regular backups.
But it is the integration and interoperability of backup systems with
other innovative technologies that holds the greatest potential for
ensuring data is accessible, safe, and recoverable. Coupled with systems
management, patch remediation, and early warning solutions, backup becomes
highly adaptive and delivers on its promise of protecting business continuity
and enhancing overall security.
Easing Administration
Systems management solutions are designed to ease the administration
of complex IT infrastructures – including desktops, notebooks,
handhelds, and servers across LANs, WANs, and the Internet – all
from a centralized console. Rolling out new applications or distributing
software updates becomes an automated process that obviates the need
for administrators to run from computer to computer and from site to
site. Systems management solutions also streamline user profile management
and version control functions within an enterprise.
While backup functions are traditionally not entirely overlooked by
systems management solutions, they are often not fully utilized. Omission
frequently begins with the backup policy. The complexity of backups
leads to an inappropriate, blanket backup policy where defaults are
the norm. In many cases, servers are set for a full backup once a week,
while all systems get an incremental backup every evening.
In a static environment, this blanket approach is appropriate. In a
dynamic environment, it is not. When new or updated software is deployed,
an IT environment is at a higher exposure level. This elevated exposure
puts data at greater risk. If backup solutions do not respond to this
change by backing up more frequently or even by retaining backups for
a longer period of time, then they are not providing appropriate protection.
In contrast, by leveraging the wealth of information contained in a
systems’ management framework, the non-traditional, adaptive back-up
system is able to actually enhance the reliability of the enterprise
infrastructure. With adaptive backup, when a new application or upgrade
is set to roll out, the systems management software alerts the back-up
software, which notifies the IT administrator of the situation and awaits
his or her response. The result is a back-up system that adjusts to
accommodate current conditions and guards against data loss automatically.
Recognizing Vulnerabilities
Patching is a serious and time-consuming issue, especially in large
IT environments with a diverse mix of software. A flurry of patch releases
leaves IT administrators scrambling. But installing patches is only
one challenge; testing them is another. Before being deployed, patches
must be applied to test machines that represent all systems and software.
And the typical test period is 30 days.
An adaptive back-up system – based on its back-up policy –
recognizes when the IT environment is at an elevated risk level as patches
are tested and responds accordingly by backing up more often and keeping
backups for a longer period of time. Once the patches are deployed,
the adaptive backup system acknowledges maintains an elevated risk state
until the patches are actually installed across all relevant systems
and working correctly. Only then will the exposure level drop and the
backup schedule return to normal.
The coordination between back-up solutions and patch remediation software
provides organizations a defense against patch-related problems that
may compromise data and threaten system stability.
Proactively Protecting
Like today’s sophisticated radar systems that enable meteorologists
to anticipate the weather, early warning systems combine both automation
and human expertise to deliver up-to-the-minute information on Internet
threats as they emerge and move around the globe. These early warning
systems enable organizations to make quick, accurate, and prioritized
security decisions to protect their corporate assets.
The convergence of early warning systems and backup gives organizations
a proactive solution for protecting data. Before a virus, worm, or other
malicious threat actually initiates an attack, the early warning system
and adaptive backup solution work together to ensure that the frequency
and retention rates of backups are increased until the high exposure
level subsides.
Of course, some Internet threats are lightning fast and spread across
vulnerable systems so quickly they leave little time for proactive protection.
In cases in which an attack actually occurs, an adaptive backup solution
still provides data protection by quarantining all backups – in
essence, freezing the data so it is usable after the attack.
An added benefit of adaptive back-up is that even after a successful
attack, it aids in forensic analysis. As the adaptive backup system
takes and saves hourly backups, these backups can be analyzed to help
determine not only when the attack occurred but also where it came from.
The synergy between adaptive backup and early warning systems offers
IT administrators a tool for strengthening the security of their organizations.
Security and Recovery
The purpose of backups is to enable recovery. Adaptive back-up solutions
make this a reality by working together with systems management, patch
remediation, and early warning systems in a harmonious convergence that
increases the reliability and enhances the security of critical business
data.
Technologies are already available to enable such a solution. Disk-to-disk
backup software simplifies the process of backing up data any time and
any place. Systems management solutions streamline administration tasks,
and patch remediation software eases the important but time-consuming
task of addressing vulnerabilities. Early warning systems enable IT
administrators to outpace, prepare for, and more easily recover from
security incidents.
Together, these technologies produce a synergy that makes adaptive backup
a promising new solution for ensuring a more secure, productive, and
manageable computing environment.
Daniel Hardman is a software architect with Symantec Corporation’s
enterprise administration business unit in Orem, Utah.
©Copyright
2004 Systems Support Inc. All rights reserved. Reproduction in whole
or in part in any form or medium without the express written permission
of System Support Inc. is prohibited.
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