Presentation 2014-11-27
The High Reliability Network Equipment utilizing non-Volatile Data
Tomoyuki OKU, Yoshifumi ATARASHI,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Event log information stored in communication equipment (CE) is useful for fault analysis. However, a number of event logs which are to be stored in CE and have various importance for the analysis are so massive that, hard disk drives (HDD) in CE may lose some event logs because HDD is not accessed at sufficiently high-speed enough. To this weak point, there is an approach to record event logs on non-volatile memory which is accessed at higher-speed than HDD. However, its price per bit is high and its capacity in CE is limited. Then, we propose a method which records only logs with higher levels of importance on non-volatile memory than an administrator demands, in order to achieve high-density log recording that is suitable for cause analysis of failures. We also suggest an automatic failure evasion technique using recorded event logs. Our method focuses on logs that are recorded just before a failure occurs, and automatically generates an exclusion-definition (i.e. conflicted configuration) based on the recorded logs. We define those logs that may cause equipment to crash as hindrance factors. The proposed method will be able to provide a communication network which has high availability and fault tolerance since it brings stable operation of CE when it recovered from a failure.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Non-Volatile Memory / Exclusion-Definition / Hindrance Factors
Paper # IA2014-67
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Conference Information
Committee IA
Conference Date 2014/11/20(1days)
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Paper Information
Registration To Internet Architecture(IA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The High Reliability Network Equipment utilizing non-Volatile Data
Sub Title (in English)
Keyword(1) Non-Volatile Memory
Keyword(2) Exclusion-Definition
Keyword(3) Hindrance Factors
1st Author's Name Tomoyuki OKU
1st Author's Affiliation Central Research Laboratory, Hitachi Ltd.()
2nd Author's Name Yoshifumi ATARASHI
2nd Author's Affiliation ALAXALA Networks Corporation
Date 2014-11-27
Paper # IA2014-67
Volume (vol) vol.114
Number (no) 335
Page pp.pp.-
#Pages 6
Date of Issue