Our platform is designed in such a way that if any server fails another server automatically and without delay takes over that servers workload. For example if one of our mail servers were to break down, another server would automatically come online, with all the correct configuration and take over the work of the failed server. In this period no email would be lost.

As well as this, all data is stored in two large network disk arrays, data is automatically synchronised between the arrays so that in the event of an array failing the remaining array continues to serve data to the servers with no downtime.

The following diagram represents the Barrcode web hosting infrastructure.

Our current server specification is:-

• Dual Intel Xeon Processor 3.0GHz with 512K Cache
• 4 GB SDRAM
• Dual 36 GB SCSI Drive (for the operating system)
• RAID Mirroring (for the operating system)
• Dual Power Supplies
• Dual Gigabit Network Adapters

---

100% Cisco Gigabit Network

Barrcode's network operates on industry leading network equipment from Cisco Systems, all our switches and routers are developed by Cisco. Our network is based on gigabit technology which means that it runs at a speed of 1000 Mb per second, most web hosting networks are limited to 100 Mb per second.

Our network also utilise's 100% CAT6 network cable, CAT6 cable contains four pairs of copper wire and unlike CAT5, utilise's all four pairs. CAT6 supports Gigabit (1000 Mbps) Ethernet and supports communications at more than twice the speed of CAT5e, the other popular standard for Gigabit Ethernet cabling

---

Redhat Enterprise Linux Platform

Redhat is the leading provider of Linux open source software, for many years now Redhat Linux has been the number one choice for web hosting companies. Not just because of Redhats amazing scalability but also because of its track record as the most stable operating system available in the market today.

Our systems utilise the latest Redhat server technology to allow our servers to be continually up to date with Redhat system & security patches.

Unlike many of our competitors we run Redhat Enterprise Linux, the most stable release of Redhat Linux available and the only version that stays totally up to date with security patches.

We operate a multi-homed network utilising BGP4 technology, simply put we have multiple connections to the Internet with different backbone providers, should any connection fail our other connections automatically take all the traffic. Not only does this mean that we are very unlikely to lose connectivity to the Internet but it also means that traffic moving to and from our network can choose from a range of paths to get to its final destination, this means that we have been able to configure the network to always take the fastest paths.