Cloud Computing

NITOS cloud infrastructure is based on HP GEN8 and GEN9 blade and rack-mounted servers. Each blade server has two powerful 16-core Intel Xeon processors, 96 GBs of RAM and two 300GB 6G SAS 10K HDDs, formatted in level one (1) RAID. As far as the rack mounted servers are concerned, they have different hardware capabilities and they serve different purposes; the first provides shared storage capacity/ service and the latter is for hosting the management and monitoring tools.

KVM hypervisor software on Ubuntu Precise OS is used in order to provision the servers’ hardware resources and support a robust and sustainable cloud environment.

The management and control of the virtualized datacenter infrastructure is made with the OpenStack Icehouse framework in order to decompose infrastructure provisioning and management into compute, storage and network services.

The networking deployment of the aforementioned infrastructure is based on a modular OpenFlow switch by HP; hosting both 10GB and 1GB Ethernet interfaces via the usage of different modules.

In total NITOS is equipped with 272 cores, approx. 800GB of RAM and a shared storage of 7TB. The interconnection of the shared storage and computer controller nodes is using a 10Gbps connection. The NITOS cloud is part of the FIWARE XiFi federation.