NDLI: High Availability Storage System Based on Two-Level Metadata Management

Content Provider	IEEE Xplore Digital Library
Author	Fang Wang Yinliang Yue Dan Feng Juang Wang Peng Xia
Copyright Year	2007
Description	Author affiliation: Huazhong Univ. of Sci. & Technol., Wuhan (Fang Wang; Yinliang Yue; Dan Feng; Juang Wang; Peng Xia)
Abstract	Generally storage devices only administrate the mapping of logical data space to local physical space while unknowing other information related to data objects. Network or metadata service failure will disable the system, although the data is still on devices intact and correct. Utilizing the redundant computing ability of storage devices, the object interface makes it possible to assist the MDS for metadata services to improve the availability of the system. Though extended attributes of the object interface and computing resource, the management of the object allocation, and local metadata service are enabled in active object storage devices (A-OSD). Based on A-OSDs, a distributed high availability storage system (HASS) characterized by two-level metadata management can be built to achieve higher availability while maintaining good performance. Experiments indicate under the same environment, compared with Lustre, HASS has better write performance and similar read performance besides the potential high availability.
Starting Page	41
Ending Page	48
File Size	221773
Page Count	8
File Format	PDF
ISBN	9780769530369
DOI	10.1109/FCST.2007.19
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-11-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Computer interfaces Network servers Technology management File systems Project management Resource management Computer network management Environmental management Secure storage
Content Type	Text
Resource Type	Article

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