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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국데이터전략학회 Journal of Information Technology Applications & Management 정보기술과 데이타베이스 저널 제11권 제2호
발행연도
2004.6
수록면
29 - 43 (15page)

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초록· 키워드

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As the development of an information technique, gradually, mobile device is going to be miniaturized and operates at high speed. By such the requirements, the devices using a flash memory as a storage media are increasing. The flash memory consumes low power, is a small size, and has a fast access time like the main memory. But the flash memory must erase for recording and the erase cycle is limited. JFFS is a representative filesystem which reflects the characteristics of the flash memory. JFFS to be consisted of LSF structure, writes new data to the flash memory in sequential, which is not related to a file size. Mounting a filesystem or an error recovery is achieved through the sequential approach. Therefore, the mounting delay time is happened according to the file system size.
This paper proposes a MJFFS to use a multi-checkpoint information to manage a mass flash file system efficiently. A MJFFS, which improves JFFS, divides a flash memory into the block for suitable to the block device, and stores file information of a checkpoint structure at fixed interval. Therefore mounting and error recovery processing reduce efficiently a number of filesystem access by collecting a smaller checkpoint information than capacity of actual files. A MJFFS will be suitable to a mobile device owing to accomplish fast mounting and error recovery using advantage of log foundation filesystem and overcoming defect of JFFS.

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Abstract

1. 서론

2. JFFS

3. MJFFS(Multi-checkpoint JFFS)

4. MJFFS의 구현 및 성능

5. 결론 및 추후과제

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