Systems and Means of Informatics
2022, Volume 32, Issue 2, pp 105-114
DETERMINATION OF THE REQUIRED NUMBER OF OPTICAL DISKS ORGANIZED INTO HYBRID STRUCTURES FOR THE PURPOSE OF DEVELOPMENT AND MAINTENANCE OF LONG-TERM ELECTRONIC ARCHIVES
Abstract
Hybrid structures of optical disks are a method of archival storage of information with increased reliability, similar to RAID arrays of disks. Unlike classic RAID arrays in hybrid structures, one of the copies of information is stored on single disks that provides quick and easy access to information using just one standard drive. During long-term storage, optical disks with recording can degrade. Knowing the number of optical disks that will need to be purchased yearly to create an archive and then to maintain its integrity is necessary for planning the life cycle of the archive and the costs of its maintenance at the design stage. The paper presents analytical models that allow one to determine the required number of optical disks yearly for four possible options (strategies) for filling the archive as well as time points that characterize the process of filling the archive and to assess the principal achievability of the planned archive capacity. An example of a real calculation is given.
[+] References (9)
- Corrado, E. M., and H. L. Moulaison. 2014. Digital preservation for libraries, archives, and museums. Lanham, MD: Rowman & Littlefield Publs. 294 p.
- Zalaev, G. Z., N. E. Kalenov, and V. A. Tsvetkova. 2016. Some issues of long-term storage of electronic documents. Scientific Technical Information Processing 43(4):268- 274.
- ISO/TR 18492:2005. 2005. Long-term preservation of electronic document-based information. Available at: https://www.iso.org/standard/38716.html (accessed March 22, 2022).
- ISO/IEC 10995:2011(E). June 15, 2011. Information technology-digitally recorded media for information interchange and storage - test method for the estimation of the archival lifetime of optical media. 2nd ed. Available at: https://standards.iso.org/ittf/ PubliclyAvailableStandards/c056910_ISO_IEC_10995_2011(E).zip (accessed March 22, 2022).
- Smith, E. February 2, 2017. When discs die. Tedium. Available at: https://tedium.co/ 2017/02/02/disc-rot-phenomenon/ (accessed March 22, 2022).
- Zheng, J., andO. T. Slattery. 2007. NIST/Library of Congress (LC) optical disc longevity study. NIST. Final Report. 32 p. Available at: https://www.loc.gov/preservation/ resources/rt/NIST_LC_OpticalDiscLongevity.pdf (accessed March 22, 2022).
- Chernyshov, A.V. 2019. Model' planirovaniya kolichestva opticheskikh diskov, neobkhodimykh dlya sozdaniya i podderzhaniya dolgovremennogo elektronnogo arkhiva [Model for planning the number of optical disks needed to create and maintain a long-term electronic archive]. Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes 15(4):578-591. doi: 10.21638/11702/ spbu10.2019.413.
- Data Archiver LB-DH8 series. Available at: http://panasonic.net/avc/archiver/lb- dh8/ (accessed March 22, 2022).
- Chernyshov, A.V. 2020. Model' nadezhnosti dolgovremennogo khraneniya informatsii na opticheskikh diskakh, ob"yedinennykh v gibridnyye struktury [Model of reliability of long-term storage of information on optical disks united in hybrid structures]. University Proceedings. Volga Region. Technical Sciences 2(54):25-33.
[+] About this article
Title
DETERMINATION OF THE REQUIRED NUMBER OF OPTICAL DISKS ORGANIZED INTO HYBRID STRUCTURES FOR THE PURPOSE OF DEVELOPMENT AND MAINTENANCE OF LONG-TERM ELECTRONIC ARCHIVES
Journal
Systems and Means of Informatics
Volume 32, Issue 2, pp 105-114
Cover Date
2022-06-10
DOI
10.14357/08696527220210
Print ISSN
0869-6527
Publisher
Institute of Informatics Problems, Russian Academy of Sciences
Additional Links
Key words
long-term electronic archives of information; write once optical disks (WORM); hybrid structures of optical disks; replacement of failed optical disks; yearly required number of optical disks
Authors
A. V. Chernyshov 
Author Affiliations
Mytischi Branch of Bauman Moscow State Technical University, 1,1st Institutskaya Str., Mytischi 141005, Moscow Region, Russian Federation
|