If you have users who work from multiple computers
and need to synchronize, manage, and store files and
folders across these computers to stay updated and
organized, you understand the kind of chaos that can ensue
if you don’t give those users an easy-to-use, effective sync
solution. You probably need to synchronize multiple computers
as well, for personal or professional use. A myriad of
laptop and PC synchronization solutions exist are available
to help you, from the simple to the complex, from the free to
the costly. In this buyers’ guide, I take a look at synchronization
tools and talk about what you need to consider when
you’re considering a solution. When you’re ready to choose
a product, this article’s table—which lists some popular
synchronization solutions and their features—should be a
big help with your research.
How Synchronization Tools Work
Many users first encountered the notion of file synchronization
when they started using a PDA and needed to
synchronize its data on their PC. But synchronization has
become an essential facet of the entire business environment,
regardless of hardware type. Although synchronization
remains a vital need for mobile users, this buyers’ guide
concentrates on laptop and PC synchronization.
Synchronization tools generally use two-way sync, in
which the system copies files between at least two locations.
One-way sync is actually a form of mirroring, in which the
system copies files to a target location but doesn’t copy
them back in the opposite direction. With two-way sync,
you’ll find the most current version of a file at both locations,
no matter where it was last modified.
Synchronization software typically uses algorithms
that analyze file attributes, size, and date/time stamps to
determine how or if a file has been changed. If the software
detects no difference between files, it takes no action.
Some software requires an administrator or user to manually
resolve conflicts between file changes, which can be
annoying if many files or many file changes are involved.
Many solutions now typically use rule sets to simplify the
conflict-resolution process and reduce the time necessary
for an administrator to review the conflicts.
Sync or Swim
It might seem self evident, but it bears stating that ease
of use is an essential quality in a synchronization tool—
whether it’s for your IT staff or your users. People don’t have
the time to learn yet another complicated new tool. If your
synchronization tool is difficult to use, it will be more of time
waster than a time saver. It’s also helpful if the GUI is simple
and offers fast visual information. Sophisticated users might
want the option of using the command line—some tools do
offer such functionality, although most don’t. Also, consider
what types of files (e.g., documents, spreadsheets, database
files, Outlook PST files) you and your users need to synchronize—
for example, some tools might synchronize Microsoft
Excel files but not PST files.
Another feature you might want to consider is the solution’s
conflict-resolution process. You want the product to
be able to detect conflicts in which a file has been changed
on one or more sources. If your solution doesn’t detect
conflicts, you might end up losing files during the overwrite
process. Is the conflict-resolution screen easy to read and
quick to navigate? Or does it require multiple clicks within
multiple dialog boxes to resolve a single conflict? If you have
a single conflict, a somewhat complicated conflict-resolution
screen might not seem problematic, but if you have
dozens of conflicts to resolve, you might find yourself (or
your users) spending more time than you want resolving
conflicts.
If your users are otherwise occupied or don’t want to
have to think about synchronization, the ability to schedule
synchronization can be helpful. However, you’ll probably
also want to have the option of on-demand synchronization.
Your users will thank you if you provide a solution
that offers a preview window so that they can review any
changes to be made before the changes are executed. You
might also want the option to include or exclude certain
files during the synchronization process. A solution that
offers logging and reporting features might help you keep
an eye on the process and troubleshoot any problems.
Finally, for those of you who are conscious about security, a
sync tool that retains the security encryption of synced files
can be useful.
Types of Solutions
The buyers’ guide table on the focuses on
third-party tools that are readily available for a relatively
inexpensive price. Many of the tools come from software
companies that specialize in synchronization tools. You
might also want to take a look at the numerous free products
that are available. See the Web-exclusive sidebar “Free
to Sync” (InstantDoc ID 97335)
for more information about such solutions.
Editor’s
Note
The Buyer’s Guide
presents vendor-submitted
information. To find out
about future Buyer’s Guide
topics or to learn how to
include your product in an
upcoming Buyer’s Guide,
go to www.windowsitpro.com/buyersguide.
technal December 28, 2007 (Article Rating: