Rapid growth in the market for x86 servers over the past year brought good news for both Linux and Windows, as research firm IDC reported last week.
What's
not always appreciated, however, is just how significant a portion of
the market Linux servers are getting to be. Whereas unit shipments of
Windows servers increased 28.2 percent year over year in the second
quarter of 2010, Linux server revenue grew 30.0 percent to $1.8 billion
when compared with the second quarter of 2009. Linux servers now
represent 16.8 percent of all server revenue, up 2.5 points over 2Q09.
That's no accident. Linux is eminently better suited to server use
than Windows is--better than most any other competitor, I'd argue. Why?
Let's count the ways.
1. Stability
Linux systems are well known for their ability to run for years
without failure; in fact, many Linux users have never seen a crash.
That's great for users of every kind, but it's particularly valuable for
small and medium-sized businesses, for which downtime can have
disastrous consequences.
Linux also handles a large number of processes running at once much
better than Windows does--that's something, in fact, that tends to
degrade Windows' stability quickly.
Then there's the need for rebooting. Whereas in Windows
configuration changes typically require a reboot--causing inevitable
downtime--there's generally no need to restart Linux. Almost all Linux
configuration changes can be done while the system is running and
without affecting unrelated services.
Similarly, whereas Windows servers must often be defragmented
frequently, that's all but eliminated on Linux. Let your competitors
endure the plentiful downtime that inevitably goes hand-in-hand with
Windows; trusty Linux will keep you up and running and serving your
customers around the clock.
2. Security
Linux is also innately more secure than Windows is, whether on the server, the desktop or in an embedded environment.
That's due largely to the fact that Linux, which is based on Unix, was
designed from the start to be a multiuser operating system. Only the
administrator, or root user, has administrative privileges, and fewer
users and applications have permission to access the kernel or each
other. That keeps everything modular and protected.
Of course, Linux also gets attacked less frequently by viruses and
malware, and vulnerabilities tend be found and fixed more quickly by its
legions of developers and users. Even the six-year-old kernel bug that
was recently fixed, for instance--an extremely rare instance in the
Linux world--had never been exploited.
Internally, meanwhile, users of a Windows system can sometimes hide
files from the system administrator. On Linux, however, the sys admin
always has a clear view of the file system and is always in control.
3. Hardware
Whereas Windows typically requires frequent hardware upgrades to
accommodate its ever-increasing resource demands, Linux is slim, trim,
flexible and scalable, and it performs admirably on just about any
computer, regardless of processor or machine architecture.
Linux can also be easily reconfigured to include only the services
needed for your business's purposes, thus further reducing memory
requirements, improving performance and keeping things even simpler.
4. TCO
There's no beating Linux's total cost of ownership, since the
software is generally free. Even an enterprise version purchased with
corporate support will be cheaper overall than Windows or other
proprietary software, which generally involve user-based licensing and a
host of expensive add-ons, especially for security.
Same goes for most of the tools and applications that might be used on a Linux server. The overall TCO simply can't be beat.
5. Freedom
With Linux, there is no commercial vendor trying to lock you into
certain products or protocols. Instead, you're free to mix and match and
choose what works best for your business.
In short, with all the many advantages Linux provides in the server
realm, it's no wonder governments, organizations and major companies
around the world--including Amazon and Google--rely on the open source
operating system in their own production systems.
If you're looking for a Linux distribution to run on your business's servers, you'd do well to consider CentOS (or RHEL, the paid version from Red Hat that CentOS is based on), Slackware, Debian and Gentoo.
#...in addition its more expensive setting up a Window server to a Linux server...
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