標題: 利用持續性記憶體於檔案系統毀損時進行資料救援以最小化資料損失量
Data Loss Minimization for File System Crash Recovery using Persistent Main Memory
作者: 洪政猷
Hung, Cheng-Yu
張立平
Chang, Li-Pin
資訊科學與工程研究所
關鍵字: 電源中斷;非揮發性記憶體;電池備援記憶體;資料回復;檔案系統;power outage;nv ram;battery-backed memory;data recovery;file system
公開日期: 2013
摘要: System failure always happens due to power outage, there would lost many data if power outage occurs. Even there have some methods like UPS to prevent data loss, but it costs too high. We proposed a technique based on battery-backed memory to protect file systems from losing data across power failures and guaranteed file system integrity. The idea is simple: when power restores after a power outage, our method salvages modified but unwritten data by scanning and parsing the contents in memory. We have implement our method on Ext3 file system and improve recovery ability compared to the ordinary file system recovery. Besides, our approach is also beneficial to integrity-aware applications like databases.
System failure always happens due to power outage, there would lost many data if power outage occurs. Even there have some methods like UPS to prevent data loss, but it costs too high. We proposed a technique based on battery-backed memory to protect file systems from losing data across power failures and guaranteed file system integrity. The idea is simple: when power restores after a power outage, our method salvages modified but unwritten data by scanning and parsing the contents in memory. We have implement our method on Ext3 file system and improve recovery ability compared to the ordinary file system recovery. Besides, our approach is also beneficial to integrity-aware applications like databases.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT070056096
http://hdl.handle.net/11536/73309
Appears in Collections:Thesis


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