Libraries Computer Center

In General

The Libraries Computer Center (LCC) of the National and Kapodistrian University of Athens (NKUA) was established in 1997 as part of the "Modernization of Libraries" project and continues its operation until today, after the completion of the "Enrichment and Upgrade of the University of Athens Library" and the "Creation of a unified Digital Repository platform and related electronic information and content promotion services for the NKUA library" projects.

Infrastructure

The Libraries Computer Center possesses the infrastructure and experience to operate and maintain applications in a high-availability virtual application server environment, implemented under the XenServer product family. The virtual environment is installed on a server pool of four identical servers interconnected via an optical fiber channel with SAN storage, where all online services are delivered via virtual machines, taking full advantage of open source software capabilities and the integration of verious types of information technology.

In particular, the virtualization environment of the LCC consists of the following:

•  Four Dell PE 2950 II servers with 32GB memory each, 2 x Quad core CPUs and two HBAs each.
•  DELL EMC AX4-5F storage subsystem with support for four (4) 4Gb fiber channel ports per controller and two (2) controllers per system. The storage subsystem contains 12 SAS drives of 450GB each, 24 SATA drives of 1TB each and 24 SATA drives of 2TB each. The disks suport hot-swap technology and are organized into physical and logical arrays.
•  The aforementioned devices are interconnected to an optical channel via two (2) Brocade 200E FC switches forming a SAN (Storage Area Network) set-up. Using Citrix XenServer software (version 6.x), which is installed on each server, they implement a Virtual Machine (VM) environment with corresponding operating systems and applications, as appropriate.

 

Additional installed hardware:

• Cluster system of two high availability servers with standalone storage subsystem interconnected on an optical bus.
• Secondary network storage subsystem, Network Attached Storage (NAS) technology.
• A number of standalone servers for implementing security, backup, load management and availability services (firewall, proxy, etc.).
• Gigabit Ethernet Switch for communicating the individual subsystems with the NKUA network and the Internet.
• Data center monitoring unit, which can be mounted on a rack mount with integrated  monitoring sensors such as temperature, humidity, voltage and current (online web) and asynchronous (electronic) capabilities mail, or SMS) recording, displaying and alerting the status.
• Large-scale backup / backup subsystem, implementing a flexible two-level backup (disk and tape). The subsystem is available for all virtual machines.

   

Contact Details

Libraries Computer Center
Depaterment of Informatics and Telecommunications
Panepistimioupolis (University Campus)
Zografou GR-15784
GREECE

email: ykb(at)lib.uoa.gr 
FAX: (+30) 210727 5614

Publications and Presentations

International Confenrences

• “Multi interest collections in a Digital Repository: The “Pergamos” case @ UOA”. D. Antoniou, G. Economou, I. Lourdi, C. Viglas, S. Zoi. XVI UNIVERSEUM Network Meeting, Athens, June 2015.
• "Introducing Pergamos: A Fedora-based DL System Utilizing Digital Object Prototypes". G. Pyrounakis, K. Saidis, M. Nikolaidou, V. Karakoidas. (Demo) Proc. 10th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2006), Alicante, Spain, September 2006.
• "Digital Object Prototypes: An Effective Realization of Digital Object Types". K. Saidis, G. Pyrounakis, M. Nikolaidou, Al. Delis. Proc. 10th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2006), Alicante, Spain, September 2006.
• "On the Effective Manipulation of Digital Objects: A Prototype-based Instantiation Approach". K. Saidis, G. Pyrounakis, M. Nikolaidou. Proc. 9th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2005), Vienna, Austria, September 2005.
• "Designing an Integrated Digital Library Framework to support Multiple Heterogeneous Collections". G. Pyrounakis, K. Saidis, M. Nikolaidou, Ir. Lourdi. Proc. 8th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2004), Bath, England, September 2004.

Greek Confenrences

• «Ο λαϊκός πολιτισμός στην εποχή των ΤΠΕ». Σ. Ζώη, Ειρ. Λουρδή. 6ο Πανελλήνιο Συνέδριο Επιστημών Εκπαίδευσης και Ειδικής Αγωγής, Αθήνα, Ιούνιος 2016.
• «Πολιτισμός, Ιστορία και Τεχνολογία στο σταυροδρόμι της «Περγάμου»: οι ψηφιακές συλλογές του Πανεπιστημίου Αθηνών». Ειρ. Λουρδή, Σ. Ζώη. Πανελλήνιο Συνέδριο Ιστορίας των Επιστημών και της Τεχνολογίας, Αθήνα, Μάρτιος 2013.
• «Αναπαράσταση και Διαχείριση Ετερογενών Ψηφιακών Συλλογών στο Σύστημα Ψηφιακής Βιβλιοθήκης Πέργαμος». Γ. Πυρουνάκης, Κ. Σαΐδης, Κ. Βίγλας, Ειρ. Λουρδή, Μ. Νικολαΐδη. Πρακτικά 15ου Πανελλήνιου Συνέδριου Ακαδημαϊκών Βιβλιοθηκών, Πάτρα, Νοέμβριος 2006.
• «Πέργαμος: Ένα Προηγμένο Σύστημα Ψηφιακής Βιβλιοθήκης βασισμένο στο Fedora». Γ. Πυρουνάκης, Κ. Σαΐδης, M. Νικολαΐδη. Πρακτικά 14ου Πανελλήνιου Συνεδρίου Ακαδημαϊκών Βιβλιοθηκών, Αθήνα, Δεκέμβριος 2005.
• «Κεντρική Υπηρεσία Διαχείρισης Παραγγελίας Άρθρων Πανεπιστήμιο Αθηνών». Ειρ. Λουρδή, Π. Μπουρογιάννη, Μ. Νικολαΐδη, Γ. Πυρουνάκης. Πρακτικά 13ου Πανελλήνιου Συνεδρίου Ακαδημαϊκών Βιβλιοθηκών, Κέρκυρα, Οκτώβριος 2004.
• «Σχεδιασμός του Ολοκληρωμένου Συστήματος Ψηφιακής Βιβλιοθήκης του Πανεπιστημίου Αθηνώ». Κ. Βίγλας, Ε. Λουρδή, Μ. Νικολαΐδη, Γ. Πυρουνάκης, Κ. Σαΐδης. Πρακτικά 13ου Πανελλήνιου Συνεδρίου Ακαδημαϊκών Βιβλιοθηκών, Κέρκυρα, Οκτώβριος 2004.
• «Δομές κεντρικής διαχείρισης και αυτοματοποιημένες διαδικασίες για τις βιβλιοθήκες του Πανεπιστημίου Αθηνών». Κ. Βίγλας, Ε. Λουρδή, Π. Μπουρογιάννη, Μ. Νικολαΐδη, Γ. Πυρουνάκης, Κ. Σαΐδης. Πρακτικά 12ου Πανελλήνιου Συνεδρίου Ακαδημαϊκών Βιβλιοθηκών, Σέρρες, Νοέμβριος 2003.