| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2019 |
| Язык | английский |
|
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. Study of Failure Hazard Degree in Large Data Centers // HELIX. 2019. Vol.9, Is.5. P. 5345-5349. |
| Аннотация |
The change in SMART values that occurred during operation, namely, parameters characterizing the reliability of hard magnetic disks in computers, is considered. It is precisely those parameters that are considered critical due to the fact that if their values increase, the probability of failure of information storage devices on hard drives increases. The scientific task of the study is to establish the priority of the specified parameters in failed hard drives from the standpoint of assessing the reliability of information storage devices of various manufacturers. The study analyzed the information storage devices of the brands HGST, Hitachi, Samsung, ST, Toshiba, WDC, operated in the largest commercial data center Backblaze. The analysis revealed the following priority of critical parameters: 5 Reallocated sectors count (number of reassigned sectors), 196 Reallocation event count (number of successful and unsuccessful attempts at the reassignment), 197 Current pending sector count (number of sectors, which are been candidates for the replacement), 1 Read error rate (frequency of errors during reading of data from the disk), 9 Power-on hours (the number of hours, carried out in the switched-on state), 7 Seek error rate (frequency of errors during positioning of the unit of magnetic heads), 10 Spin-up retry count (number of repeated attempts at the spin up of disks to the operating speed if the first attempt was unsuccessful). It is shown that the very existence of the values of the parameters considered depends on the manufacturer of the hard drives. The ranking of information storage devices by the degree of reliability of implementation using the priority parameters identified as a result of the study is proposed. |
| Ключевые слова |
ranking, hard disk, reliability, information, safety, storage |
| Название журнала |
HELIX
|
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=222128 |
| Файлы ресурса | |
|
|
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Насыров Ильдар Искандарович |
ru_RU |
| dc.contributor.author |
Насыров Искандар Наилович |
ru_RU |
| dc.contributor.author |
Насыров Рустам Искандарович |
ru_RU |
| dc.contributor.author |
Хайруллин Булат Аскарович |
ru_RU |
| dc.date.accessioned |
2019-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2019-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2019 |
ru_RU |
| dc.identifier.citation |
Nasyrov I.N., Nasyrov I.I., Nasyrov R.I., Khairullin B.A. Study of Failure Hazard Degree in Large Data Centers // HELIX. 2019. Vol.9, Is.5. P. 5345-5349. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=222128 |
ru_RU |
| dc.description.abstract |
HELIX |
ru_RU |
| dc.description.abstract |
The change in SMART values that occurred during operation, namely, parameters characterizing the reliability of hard magnetic disks in computers, is considered. It is precisely those parameters that are considered critical due to the fact that if their values increase, the probability of failure of information storage devices on hard drives increases. The scientific task of the study is to establish the priority of the specified parameters in failed hard drives from the standpoint of assessing the reliability of information storage devices of various manufacturers. The study analyzed the information storage devices of the brands HGST, Hitachi, Samsung, ST, Toshiba, WDC, operated in the largest commercial data center Backblaze. The analysis revealed the following priority of critical parameters: 5 Reallocated sectors count (number of reassigned sectors), 196 Reallocation event count (number of successful and unsuccessful attempts at the reassignment), 197 Current pending sector count (number of sectors, which are been candidates for the replacement), 1 Read error rate (frequency of errors during reading of data from the disk), 9 Power-on hours (the number of hours, carried out in the switched-on state), 7 Seek error rate (frequency of errors during positioning of the unit of magnetic heads), 10 Spin-up retry count (number of repeated attempts at the spin up of disks to the operating speed if the first attempt was unsuccessful). It is shown that the very existence of the values of the parameters considered depends on the manufacturer of the hard drives. The ranking of information storage devices by the degree of reliability of implementation using the priority parameters identified as a result of the study is proposed. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
ranking |
ru_RU |
| dc.subject |
hard disk |
ru_RU |
| dc.subject |
reliability |
ru_RU |
| dc.subject |
information |
ru_RU |
| dc.subject |
safety |
ru_RU |
| dc.subject |
storage |
ru_RU |
| dc.title |
Study of Failure Hazard Degree in Large Data Centers |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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