Sitewarehouse Data Center
|
|
Industrial-Grade
Equipment for the Ultimate Performance and Reliability
|
Sitewarehouse recognizes that down time is not an
option for our servers. That's why we invest heavily
in hardware and facilities that ensure our clients are
up and running on the web 24 hours a day, seven days
a week.
Sitewarehouse's Network Operations Center (NOC) features raised flooring. This
enables a constant flow of conditioned air and helps to maintain uniform
room temperature at all times. In addition, raised flooring reduces static
and ensures a professional, computer grade environment for our servers.
The facility is equipped with a Raytheon fire suppression system, designed
to immediately extinguish fire and protect equipment and personnel. The
command center is controlled via automatic doors to further secure and
protect the equipment.
Finally, the NOC is located in
a secure, monitored, class A building with a minimum
number of approved personnel allowed access to highly
sensitive areas and equipment. A detailed record
of employee and visitor entry is maintained at all
times.
|
Uninterruptible Power System
|
To
guard against local power failures, we have two industrial-grade,
three phase Liebert UPS systems. These act as back-up
batteries, maintaining uninterrupted power in case of
surges or power outages. With these backup systems in
place, we can keep our network up and running indefinitely
without relying on external power.
|
Industrial-Grade Air Conditioners
|
Sitewarehouse's
NOC has two Liebert ten ton industrial air conditioners,
which condition our computer rooms and operations center.
Our computer room is kept at an optimal temperature of
65 degrees fahrenheit.
|
Custom Web Servers
|
Sitewarehouse's
web servers are custom-built industrial machines designed
for a 24/7 web serving environment. All servers are equipped
with dual redundant 450-watt power supplies, hot swap
Seagate Baracuda/Cheetah drives and force-filtered cooling
systems. In addition, our NOC is equipped with an inventory
of identically configured, burned-in standby servers.
|
Force Filtered Cooling
|
All
of Sitewarehouse's custom web servers are equipped with a positive
pressure filtered-air system. Four large fans pull filtered
air into each server's protective case and the components
within are cooled by fans which circulate this purified
air. This constant introduction of clean air into the
case creates a positive pressure environment ensuring
dust and particles remain outside of the server.
|
Hot Swap Seagate Drives
|
The
drives and drive bays of all Sitewarehouse servers are constructed
from high-grade aluminum, and rest in shock mounted drive
cages, which adds to the durability of the hardware.
Sitewarehouse's drives proudly feature the lowest failure rate
in the industry. (And yes, we do pay more for the reliability)
|
Redundant Hot Swap Power Supplies
|
Each
server employs dual-redundant hot swap power supplies.
If a power supply were to fail, the server would continue
running with power from the alternate supply. Meanwhile,
alarms would alert a technician, who would quickly restore
redundancy. In the meantime, servers and client sites
would experience no downtime.
|
Standby Servers
|
We
keep spare servers on-line of all CPU configurations.
If a server were to experience a hardware failure, we
would turn a key, grab the handle on the drive, pull
it out, and insert it into an identical standby CPU.
We would then reboot the second machine and the server
would be up and running again in a matter of minutes.
|
Connected to Three Backbones
|
The
Sitewarehouse NOC located in Baltimore, Maryland and another
in Reston Virginia, are OnNet with GlobalCenter (GC),
Qwest Communications and GTE through three separate bandwidth-on-demand
connections.
GC, a Tier 1 provider whose 13,000-mile
fiber optic network and Dense Wave Division Multiplexing
(DWDM) technology provide an enormous 460 gigabytes
per second (Gbps) of capacity worldwide, has an Asynchronous
Transfer Mode (ATM) is our primary provider of bandwidth.
Qwest comes into MAE East with
an OC-12 line and plans to upgrade their connection
to an OC-48 in the near future. They also have an
ATM fiber node floors below the Sitewarehouse NOC. Our
Qwest connection enables Sitewarehouse to offer additional
redundancy and better routes to Europe, Latin America
and Asia. With our carriers, our router has up to
150,000 possible routes to send each packet of traffic.
Genuity, a division of GTE, is
our third Tier One Internet backbone. Genuity provides
excellent network performance as a result of their
high-speed peering arrangements with other Tier One
Internet backbone providers. The GTE global network
delivers customers directly onto the Internet via
a high-speed connection to its private, super-capacity
backbone, including 17,000 miles of fiber and OC192
capacity. It is comprised of more than 800 U.S. local
access points and approximately 1,500 international
local access points in more than 150 countries.
Furthermore, because of these unique
connections, Sitewarehouse does not need to link to the
Internet though an OC3 or T3 Telecom circuit. Instead,
independent cables run inside our building directly
from the Sitewarehouse NOC to all three carriers points
of presence. These lines can handle the bandwidth
of a T3 or an OC3 with DWDM. Plus, they handle several
times the bandwidth of an OC3. Whatever your bandwidth
needs may be, Sitewarehouse has the scalability to meet
them.
|
Network Redundancy
|
Sitewarehouse
uses intelligent end-user routing software called Border
Gateway Protocol (BGP), between GC, Qwest and GTE, who
use the same protocol. BGP identifies which path is the
most efficient for each data packet and then routes the
packet to its destination on the fastest path. This increases
the speed at which web pages sent from our NOCs arrive
at their destination.
Studies have shown that the most
common reason for downtime is circuit failure on
Tier 1 provider backbones, the major data highways.
To guard against this potential problem, we have
three Tier-1 providers. If one experiences problems,
we can route traffic down the other one. Furthermore,
because we are OnNet with GlobalCenter, Qwest and
GTE, we share their digital distribution architecture,
which includes private peering network connections
to major Internet carriers such as MCI, Sprint, UUNET,
EUNET, AT&T, AOL, IBM Advantis and others. These
private peering arrangements allow Sitewarehouse to exchange
packets of data with every major backbone carrier
in a one-to-one environment quickly and efficiently.
In addition, GC has high-speed
links to eight public exchanges including both MAE
East and West and several NAPS. Through these public
exchanges, customers have the ability to reach their
site, no matter from where they are coming on the
Internet.
|
Network Reliability
|
Industry
analysis reveals that 70% of downtime over ten hours
with any ISP is caused by telephone circuit failure.
Since our NOC is in the same buildings as Global Center,
Exodus, GlobalOne, Qwest and GTE, circuit failure is
virtually eliminated because there is no phone circuit
between us and our providers. Instead, there is a direct
connection between our Cisco 7500 routers and theirs.
Sitewarehouse's providers also have peering
connections with other major Tier 1 providers, which
allows traffic to be switched to alternate backbones
should the need arise.
|
Raw Performance Equals Low Latency/High Throughput
|
Too
often providers operate their networks at three to four
times responsible capacity. As a result, their corresponding
transfer times reach over 300ms. Sitewarehouse's network daily
average is 6.5% of its capacity, with midday peak spikes
reaching only 15.5% capacity.
|
Firewalls
|
A
firewall is a security device that secures the server
from possible attacks. It is placed between the server
and the Internet to moderate and document requests for
data access according to a predefined set of security
policies. Every one of our servers comes equipped with
a firewall, which is built and managed by our in-house
security engineers. Our data center staff is managed
by a network security engineer with over 15 years of
experience in telecommunications cryptography. In addition
to the individual firewall, our entire network is secured
through a circuit level firewall, providing one more
level of security for mission-critical data.
|
Automated Security Monitoring
|
To
ensure the integrity of our customers' web sites, we
proactively monitor system processes on each server as
well as across our entire network. These monitoring programs
are designed to halt and report all intrusions to the
system and provide our customers with the peace of mind
they need to conduct secure business transactions from
our servers.
|
|
|
|