KFU. Card publication. Study of Failure Hazard Degree in Large Data Centers

KAZAN
FEDERAL UNIVERSITY

- RUS
- 中文
- ES

STUDY OF FAILURE HAZARD DEGREE IN LARGE DATA CENTERS

Form of presentation

Articles in international journals and collections

Year of publication

2019

Язык

английский

Authors, employees of KFU

Nasyrov Ildar Iskandarovich, author

Nasyrov Iskandar Nailovich, author

Nasyrov Rustam Iskandarovich, author

Khayrullin Bulat Askarovich, author

Bibliographic description in the original language

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.

Annotation

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.

Keywords

ranking, hard disk, reliability, information, safety, storage

The name of the journal

HELIX

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=222128&p_lang=2

Resource files

File name	Size (MB)	Format
Study_of_Failure__azard_Degree_in_Large_Data_Centers_5345_5349.pdf	1,06	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Nasyrov Ildar Iskandarovich	ru_RU
dc.contributor.author	Nasyrov Iskandar Nailovich	ru_RU
dc.contributor.author	Nasyrov Rustam Iskandarovich	ru_RU
dc.contributor.author	Khayrullin Bulat Askarovich	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/eng/?p_id=222128&p_lang=2	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	Articles in international journals and collections	ru_RU