Training materials that help end-users use the generic services that are on-boarded in the NI4OS-Europe pre-production environment.

The Simple Storage Service (SSS) is a secure data storage service provided to researchers for storing and sharing research data as well as keeping it synchronized across different devices. SSS is functionally similar to Dropbox, Office 365, or Google Drive. Files are stored in conventional directory structures, accessible via WebDAV. User files are encrypted during transit and can be synchronized with local clients running Windows, macOS, or various Linux distributions. The service is based on the NextCloud platform.

For more information about SSS please visit the NI4OS-Europe service catalogue.

Data analysis service or PARADOX Hadoop cluster consists of a single name node that runs the YARN resource manager, and three additional data nodes. The name node is hosted on a machine with 4-core Intel Xeon E3-1220v3 CPU running at 3.1 GHz, with 4 GB of RAM, and 500 GB of local hard disk storage. Each of the data nodes, which perform the computation and storage, are hosted on machines with 24-core Intel Xeon E5-2620 CPUs at 2.4 GHz, with 64 GB of RAM and 2 TB of storage. In total, the cluster provides access to 60 CPU cores, 180 GB of RAM and 5.3 TB of storage in HDFS.

In the analysis of very large datasets, the movement of data can present a far more severe bottleneck than the actual computation. Therefore, the PARADOX Hadoop cluster is designed to overlap computation and data storage operations, i.e., to enable performing of computation on the same machine(s) that store the corresponding data.

For more information about PARADOX Hadoop please visit the NI4OS-Europe service catalogue.

PARADOX-IV cluster represents the fourth major upgrade of the PARADOX cluster and became operational during September 2013. The cluster consists of 106 working nodes and 3 service nodes. Working nodes (HP ProLiant SL250s Gen8, 2U height) are configured with two Intel Xeon E5-2670 8-core Sandy Bridge processors, at a frequency of 2.6 GHz and 32 GB of RAM (2 GB per CPU-core). The total number of new processor-cores in the cluster is 1696. Each working node contains an additional GP-GPU card (NVIDIA Tesla M2090) with 6 GB of RAM. With a total of 106 NVIDIA Tesla M2090 graphics cards, PARADOX is a premier computer resource in the wider region, which provides access to a large production GPU cluster and new technology. The peak computing power of PARADOX is 105 TFlops. 

For more information about PARADOX-IV please visit the NI4OS-Europe service catalogue.

RePol – Repository Policy Generator is an open-source web application that guides users through the process of defining policies for repositories and web-based services. It helps in defining and maintaining comprehensive and clear repository and privacy policies. Generated privacy policies are suitable for any kind of service. RePol uses a step-by-step wizard and self-explanatory forms to guide users through the process. By choosing options in a form, users shape a policy document with predefined policy clauses formulated in line with the current best practice. The resulting policy document may be downloaded as an XML file, additionally customized, and integrated into the service or repository. The collected data and the key elements of the generated policy are provided in a machine-readable format. This allows for an automated interpretation of created policies and extraction of repository-level metadata for inclusion in registries, catalogues and various operational and data discovery tools. The resulting policy document may be downloaded, additionally edited, and integrated into a repository.

Data archiving is the practice of moving data that is no longer being used or are being used on a less frequent fashion into a separate storage device.  It is a single set or a collection of historical records specifically selected for long term retention and future reference. The Archival service is based on the tape-based tertiary storage of the ARIS HPC system.

For more information please visit the NI4OS-Europe catalogue.

NI4OS-Europe has developed RoLECT tool in order to assist prospective resource providers in verifying adherence to the RoP during the onboarding process of resources to the EOSC ecosystem focusing on the Legal and Ethics Requirements. 

Self-paced course that introduces you to the GRNET High Performance Computing Services - ARIS.

For more details on the service please visit the NI4OS-Europe service catalogue.

A self-paced course that introduces the LCT, a license clearance tool for research outputs re-use. 
LCT provides a guided approach for establishing the proper open-source licence required for the creation of a new (or synthetic) dataset, media, software, or for the re-use of existing unlicensed content.

Training for the use of FINKI Cloud - an OpenStack based IaaS service