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How
to protect your Web data
by
Chris Kivlehan
The
Internet has become a key revenue-generating channel for many distributors.
Industrial and
construction buyers spend millions of dollars online. For many, going online to
make a purchase or to find information that will lead to a purchase is now
second nature.
A natural consequence of this situation is that enormous
amounts of very valuable data are stored on computers. And, as we all well know,
computers tend to die from time to time. For every business using the Web as a
revenue-generating channel, data is an important company asset. The loss of a
customer order database could be devastating to a business, leading to
unfulfilled orders, dissatisfied customers and losing touch with thousands of
clients. Death-prone machines that they are, depending on one computer alone for
storing all of your important data is a formula for disaster.
Since it
is pretty self-evident that preventing the loss of orders and customer
information is important, why is it that backup solutions are among the lowest
priorities of most businesses shopping for Web hosting?
Backups
could be compared to life insurance policies for your Web operation, but they
are really something more. Quality backups are like a life insurance plan that
would resurrect you if you passed away, rather than simply grant your loved ones
some monetary assistance.
Like a Web
hosting plan, a backup solution should appropriately match what your company is
doing on the Web. Businesses running small brochure Web sites need the most
modest sort of backups; however, businesses collecting data from customers and
prospects through the Web need reliable backup solutions.
The acid
test for a backup plan is whether it provides the means to restore your site to
a fully operational condition within one hour after a server crash.
A modest
backup suitable for a brochure-style site can consist of simply keeping a spare
copy of all of the files on a separate computer. If the site is such that
visitors do not submit information to any databases or add content, this type of
backup is perfect. Certainly, a basic brochure site could be restored very
quickly with this type of backup.
Sites that
dynamically interact with visitors and constantly write new information to
databases cannot rely on simply keeping spare copies of their files. Those
copied files are quickly outdated. Databases that accept information online need
to be backed up frequently. How frequently depends on how important the data is
to the company, and how unacceptable some data loss is in a disaster.
For a
relatively low traffic site where the data being collected isn’t all that
critical, weekly backups may suffice. For sites collecting large amounts of
orders and client information every day, daily backups are a minimum
requirement. The very largest e-commerce sites take backups on an hourly basis,
or even have their data constantly written to backup computers in a process
known as replication.
Today’s
technology tools
Technologies
used for backup solutions vary depending on the operating system platform and
the type of data being backed up. In a Windows environment, Veritas (www.veritas.com)
software’s BackupExec is a premier solution for those that cannot afford any
data loss. Veritas produces special agents to work with many leading software
applications to ensure data from those applications is backed up perfectly. In a
Unix environment, open source backup software such as Bacula (www.bacula.org)
makes for a high-quality, low-cost solution.
In
addition to the software products that actually run backups, businesses must
consider what type of media they want their backup stored on. Choices include
secondary hard drives in the same computer that is running the site, tape
drives, separate network storage devices and CDs or DVDs. CDs and DVDs make for
great portable backups, but are limited to relatively small file sizes (roughly
700MB and 4.8GB respectively). Network storage devices can be very expensive,
but can backup enormous amounts of data. Tape drives offer perhaps the best
balance of cost, storage capacity, portability, security and quality. Backups to
a second hard drive are the easiest on the budget and the fastest in terms of
restore time, but are vulnerable to corruption in a situation where the disaster
is caused by a hacker.
Choosing
the right backup plan for your business should be done in consultation with an
experienced professional who can help you design a solution that will allow you
to restore your site to full functionality as quickly as needed. While often
overlooked in the price-conscious shopping process, backups are critical to the
long-term success of any Web operation. Computers being what they are, after a
certain amount of time it is a given that your backup solution will be tested.
It is just a matter of when. It is best to be prepared for this day with an
appropriate backup solution.
Four
things you can do
1) Have a
written policy and procedures in place on how to handle a restore from backup.
In a time of crisis, this will cut down on confusion and allow the process to
move along more smoothly.
2) Test
restores from backup. This is critical. Some complex applications might require
special software agents or configurations to backup and restore properly. Make
sure the test restore is successfully accomplished in a time frame that would be
acceptable for a real restore. If the process takes too long, you may have to
reconsider your backup strategy.
3)
Physically protect backup data from hackers and thieves. Someone getting hold of
an unencrypted backup is just as bad as someone breaking in to your office or
warehouse to steal inventory.
4) Keep
copies of software that you may need to reinstall with your backups. This
includes operating systems, software applications and security patches.
Chris
Kivlehan is the marketing manager for INetU Managed Hosting, an award-winning
Web hosting provider that specializes in managed dedicated hosting for
businesses nationwide. Contact Chris at www.inetu.net,
chrisk@inetu.netor at
(610) 266-7441.
This article originally appeared in the
November/December 2005 issue of
Progressive Distributor. Copyright 2005.
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