title: Model for planning the number of optical disks needed to create and maintain a long-term electronic archive
metadata.name: dc.contributor.author
metadata.value: Chernyshov, Alexandr V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2020-03-05T13:24:15Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2020-03-05T13:24:15Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2019-12
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Chernyshov A. V. 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, 2019, vol. 15, iss. 4, pp. 578–591.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/11701/spbu10.2019.413
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/17166
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Development of an analytical model that allows to estimate the number of optical disks
  needed annually to create and maintain a complete electronic archive of long-term storage of
  information, as well as the time costs associated with these processes. An analytical model is
  developed for archives based on single disks (disks are not combined into RAID structures).
  The model uses the following parameters as input data: the estimated (design) capacity of
  the archive; the capacity of the optical disks used; estimates of the time to write, read and
  control the integrity of optical disks; the time allocated for technical work in the archive (the
  actual recording of new data, the control of previously recorded disks, the recovery of failed);
  the probability of failure of the optical disk during storage; the probability of failure of the
  disk during recording (marriage). Considered 4 options for the functioning of the archive
  depending on the bandwidth of the equipment and describes the stages of each option. For
  each option, analytical expressions are obtained that allow to estimate annually the required
  number of optical disks (which largely determines the annual material costs), as well as the
  time of changing stages. In addition, for some variants, expressions are obtained to evaluate
  the possibility of achieving the design capacity of the archive.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Applied Mathematics. Computer Science. Control Processes;Volume 15; Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: long-term archives of electronic information
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: optical discs
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: ensuring the integrity of information
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: annual costs
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Model for planning the number of optical disks needed to create and maintain a long-term electronic archive
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 578-591.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/17166/1/578-591.pdf
resources.format: Adobe PDF
resources.size: 394,39 kB