High-Density Clusters

We offer various server solutions that minimise use of rack space, including twin servers, blade servers and half-depth servers.

Twin Servers
Twin servers have two complete and independent servers in one 1U chassis. Each server can have a single- or dual-socket motherboard. The servers usually only share the chassis and the power supply. The big advantages of twin servers are the space saving (half the space of a regular 1U server), and the low power consumption. The power consumption is lower than regular 1U servers because two servers share the same power supply, which is more efficient. Twin servers are available with Intel and AMD CPUs and can contain InfiniBand on the motherboard.

Half-depth Servers
Half-depth servers are very small 1U servers with a regular 19″ width, but a short depth. The short depth allows the servers to be placed in a short-depth 19″ rack, or depending on the design, in a back-to-back arrangement. Half-depth servers are available with Intel and AMD CPUs.

Blade Servers
Blade servers consist of a large chassis with multiple small blades placed vertically in the chassis. The blades usually share one or more redundant power supplies and fans. Often the chassis also contains Ethernet switches or Ethernet pass-through modules and IPMI compatible management modules. Blades are available with Intel and AMD CPUs. InfiniBand and Myri-10G solutions can be integrated in most blade solutions.

We also utilise fast interconnect and storage components which are optimised for maximimum system density.

Power and Cooling

High density cluster systems require sophisticated power and cooling systems in order to fully benefit from their optimised footprint. When we design your cluster, we take any power and air-conditioning limitations you may have into account to try to come with a design which meets those requirements. As early as possible in the design process, we will provide you with estimates of the power and air-conditioning requirements for your cluster.

A cluster installation is often preceded by a site survey by one of our qualified engineers. The engineer will discuss possible installation locations, delivery access, and power and air-conditioning requirements. If additional power or air-conditioning is required, we can implement this through one of our specialist power or air-conditioning sub-contractors.

We offer a choice between air-cooled and water-cooled rack solutions. Water-cooled solutions are most energy-efficient but more costly for their initial purchase price. From a long-term TCO perspective water-cooled racks are generally more cost-effective than air-cooled racks.