Казанский (Приволжский) федеральный университет, КФУ
КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
METHOD FOR HDD RELIABILITY MULTIPARAMETRIC ASSESSMENT
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2021
Языканглийский
  • Насыров Ильдар Искандарович, автор
  • Насыров Искандар Наилович, автор
  • Насыров Рустам Искандарович, автор
  • Хайруллин Булат Аскарович, автор
  • Библиографическое описание на языке оригинала Nasyrov I.N., Nasyrov I.I., Nasyrov R.I., Khairullin B.A. Method for HDD Reliability Multiparametric Assessment // Revista San Gregorio. 2021. Is. 44, Special edition. P. 167-178.
    Аннотация A method of multiparametric assessment of information storage devices reliability based on the dependence on the operating time of the SMART parameter values characterizing the state of hard magnetic disks in computers is presented. The parameters, with an increase in the values of which the failure probability of disk storage devices increases, are considered. The scientific objective of the study is to establish the importance of these parameters in failed hard drives from the standpoint of developing a method for assessing the reliability of information storage devices of various manufacturers. In the course of the research, the drives of such brands as HGST, Hitachi, Samsung, ST, Toshiba, WDC, operated in the largest commercial data centre Backblaze, were analysed. The analysis revealed the following set of the most important parameters: 5 Reallocated sectors count (number of reallocated sectors), 196 Reallocation event count (number of successful and unsuccessful reallocation attempts), 197 Current pending sector count (number of sectors that are candidates for replacement), 1 Read error rate (the frequency of errors when reading data from the disk), 9 Power-on hours (the number of hours spent in the on state), 7 Seek error rate (the frequency of errors when positioning the magnetic head unit), 3 Spin-up time (the time to spin up the packet disks from rest to operating speed), 10 Spin-up retry count (the number of retries to spin up disks to operating speed if the first attempt was unsuccessful). It is taken into account that the very existence of the considered parameters values depends on the hard drives manufacturer.
    Ключевые слова information, storage, hard disk, reliability, parameter, method
    Название журнала REVISTA SAN GREGORIO
    URL http://revista.sangregorio.edu.ec/index.php/REVISTASANGREGORIO/article/view/1607/28-iskandar
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