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Infrastructure
Two mirroring systems in Texas and Delaware
Our primary production servers are hosted
by The Planet, one of the largest dedicated server hosting providers in the world
(second only to IBM). The Planet owns and operates six state-of-the-art data centers
supporting more than 40,000 servers, and fully redundant Network Operations Centers
in two cities (Dallas & Houston) with 24x7x365 monitoring. It is one of the
industry’s fastest, most robust networks (100 gigabits/sec).
Total Redundancy
No single point of failure that could cause prolonged downtime or data loss
XISOX system has total redundancy built-in to all services, meaning that there is
no single point of failure that could cause prolonged downtime or data loss to a
customer. Some highlights of our built-in redundancy include:
Geographical complete system redundancy:
XISOX is fully implemented on two completely separate systems, utilizing different
hosting companies, datacenters and networks. The primary production system is located
in Dallas, Texas, and the standby system is hosted in Delaware. The production databases
are replicated (mirrored) to the standby system at least twice a day. In the unlikely
event of a natural disaster, terrorist attack or other such cataclysmic event in
Texas, XISOX will be up and running from Delaware within an hour.
Backup redundancy: Primary production
servers are backed up every day in three different ways:
- The database server is backed up every day into a NAS backup system (a separate
special backup server on the local network).
- All production servers, including the database server, are backed up incrementally,
at least daily, by a fully automated DiskSync backup system that sends the backup
data to another, geographically separate, Dallas datacenter.
- The database is replicated at least twice a day to XISOX standby servers in Delaware.
Network redundancy: For our primary production
servers we don't just utilize two transit providers, but eight Tier 1 telecom providers,
ensuring you'll always be able to reach our network at high speed.
Physical redundancies in datacenter infrastructure and
hardware: We host our servers in state-of-the-art, world-class datacenters
equipped with every imaginable redundancy in servers, switches, monitoring, power
supply, air conditioning, fire suppression, and security. Our servers are equipped
with multiple hard drives on IDE RAID drive controllers. All data on the server
is always simultaneously saved on two or more hard drives. If one drive fails, the
other drives take over without any interruption.
Security
State-of-the-art datacenter security and SSL encripted communication
Physical Security of the data centers
include 24x7x365 on-site security guards; CCTV digital camera covering the entire
center; building perimeter bounded by concrete bollards/planters; silent alarm system
linked to law enforcement; redundant HVAC (Heating, Ventilation and Air Conditioning);
multi-zoned, dry pipe, water-based fire suppression system with sensory mechanisms
to sample air and provide alarms prior to pressurization; UPS systems and emergency
backup diesel generators with redundancy built into all power backups.
Data Security is ensured by all server-client
communications being transmitted through a secure (SSL) server. This is the same
type and level of security used in internet e-commerce for securing credit card
transactions.
Networks
Eight Tier 1 telecom providers and direct Internet connections
The Texas data centers 24x7x365 redundant monitoring from two Network Operations
Center (NOC) locations, staffed by certified system administrators and security
professionals. The network management teams operate NOCs in Houston and Dallas to
assure the most sophisticated and comprehensive systems monitoring, and complete
monitoring back-up in the event of any emergency.
Redundant network cores in multiple data centers means that if a router or high-level
network appliance goes down for any reason, there is no loss of service. Gigabit
cross-connects between multiple data centers assures that data moves quickly, and
if any one data center were to experience network connectivity issues, it would
simply route outgoing data through other centers. The system automatically measures
the latency of key network routes and sends client data to the Internet along the
best possible route.
Our XISOX primary production servers are connected to multiple Tier 1 telecom providers
and direct Internet connections, bypassing transit networks and shortening the network
path between our servers and your local broadband provider. The result is lower
latency, maximum speed, and unsurpassed reliability.
The bandwidth providers are:
- AT&T
- AboveNet
- Savvis
- Verio
- Global Crossing
- Time Warner
- Telecom
- Cogent
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