Data crashes can cause unpredictable and even hard-out effects for an enterprise or authority. Backup strategies as antidote unify a complex of organizational and technical measures that are necessary for data restoring, processing and transfer as well as for data security and defense against its loss, crash and tampering. High-performance modern Internet allows delivery of backup functions and is complemented by attractive (mobile) services with a Quality of Service comparable to that in Local Area Networks. One of the most efficient backup strategies acts the delegation of this functionality to an external provider, an online or Cloud Storage system. This article argues for a consideration of intelligently distributed backup over multiple storage providers in addition to the use of local resources. Some examples of Cloud Computing deployment in the USA, the European
Union as well as in Ukraine and the Russian Federation are introduced to identify the benefits and challenges of distributed backup with Cloud Storage.

Рік видання: 2012
Номер: 2
УДК: 621.39
C. 30—38. Iл. 8. Табл. 6. Бібліогр.: 16 назв.

1. Cloud computing / C. Baun, M. Kunze, J. Nimis, S. Tai // Web-based dynamic IT-Services. ─ Springer Verlag, 2010.
2. Luntovskyy A., Guetter D., Melnyk I. Planung und Optimierung von Rechnernetzen: Methoden, Modelle, Tools für Entwurf, Diagnose und Management im Lebenszyklus von
drahtgebundenen und drahtlosen Rechnernetzen // Handbook for German universities. ─ Vieweg + Teubner Verlag Wiesbaden, Springer Fachmedien Wiesbaden GmbH, 2011. ─ 411 p. (in German).
3. Luntovskyy A., Klymash M., Semenko A. Distributed services for telecommunication networks: Ubiquitous computing and cloud technologies. ─ Lviv: Lvivska Politechnika,
2012. ─ 368 p. (in Ukrainian).
4. Ordinary backup technologies (Online, in German): http://www.tecchannel.de/storage/backup.
5. Decasper D., Samuels A., Stone J. RAIC – Redundant Array of Independent Clouds // Patent USA 2012: Reg. No.: 12/860, 810, Publishing No.: US 2012/0047339 A1.
6. Luntovskyy A. Programming technologies of distributed applications. ─ Kiev: DUIKT University of Telecommunications, 2010. ─ 474 p. (in Ukrainian).
7. Luntovskyy A., Klymash M. The service-oriented Internet // Proceedings of IEEE 11th TCSET 2012 Conference on Modern Problems of Radio Engineering, Telecommunications and Computer Science. ─ Lviv ─ Slavsk, February 2012, Lviv Polytechnic National University. ─ P. 256 (IEEE Xplore).
8. Luntovskyy A., Guetter D. A concept for a modern virtual telecommunication engineering office // Telecommunication Sciences. ─ 2012. ─ Vol. 3, Issue 1. ─ P. 15─21.
9. Mell P., Grace T. The NIST definition of cloud computing // NIST Special Publication. ─ 800-145. ─ September 2011.
10. Amazon Web Services (Online): http://aws.amazon.com.
11. Kommalapati H. Azure Platform (Online): http://msdn.microsoft.com/en-us/magazine/ee309870.aspx/.
12. Spillner J., Schill A. A versatile and scalable everything-as-a-service registry and discovery // Proceedings of 3rd International Conference on Cloud Computing and Service Science (CLOSER), Aachen, Germany, May 2012. ─ P. 23─27.
13. Ukrainian legislation regarding to data security (Online): http://zakon.rada.gov.ua/.
14. Schill A., Spillner J., Gross S. FlexCloud@TUD project/ Dresden University of Technology TUD (Online): http://www.rn.inf.tu-dresden.de/.
15. Metadata efficiency in versioning file systems / C. A. N. Soules, G. R. Goodson, J. D. Strunk, G. R. Ganger // Proceedings of the Third USENIX Conference on File and Storage Technologies, March 31 ─ April 2, 2003, San Francisco, California, USA (Online): http://static.usenix.org/ publications/.
16. Seiger R., Gross S., and Schill A. A secure cloud storage integrator for enterprises // International Workshop on Clouds for Enterprises, Luxemburg, September 2011. ─ P.
12─15. Received in final form October 24, 2012