The expandable network disk
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2009
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| Online Access: | http://hdl.handle.net/1721.1/45877 |
| _version_ | 1811073966391951360 |
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| author | Muthitacharoen, Athicha, 1976- |
| author2 | Robert T. Morris. |
| author_facet | Robert T. Morris. Muthitacharoen, Athicha, 1976- |
| author_sort | Muthitacharoen, Athicha, 1976- |
| collection | MIT |
| description | Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008. |
| first_indexed | 2024-09-23T09:40:58Z |
| format | Thesis |
| id | mit-1721.1/45877 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T09:40:58Z |
| publishDate | 2009 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/458772019-04-10T18:31:28Z The expandable network disk Muthitacharoen, Athicha, 1976- Robert T. Morris. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008. Includes bibliographical references (p. 91-96). This thesis presents a virtual disk cluster called END, the Expandable Network Disk. END aggregates storage on a cluster of servers into a single virtual disk. END's main goals are to offer good performance during normal operation, and efficiently handle changes in the cluster membership. END achieves these goals using a two-layer design, in which storage "bricks," servers that consist of CPU, memory, and hard disks, hold two kinds of information. The lower layer stores replicated immutable chunks of data, each indexed by a unique key. The upper layer maps each block address to the key of its current data chunk; each mapping is held on two bricks using primary-backup replication. This separation allows END flexibility in where it stores chunks and thus efficiency: it writes new chunks to bricks chosen for speed; it moves only address mappings (not data) when bricks fail and recover, which results in fast recovery; it fully replicates new writes during temporary brick failures; and it uses chunks on a recovered brick without risk of staleness. The END prototype's write throughput on a cluster of 16 PC-based bricks is 150 megabytes/s with 2x replication. END continues after a single brick failure, re-incorporates a rebooting brick, and expands to include a new brick after a few seconds of reduced performance during each change. The results show that END's two-layer design maintains good performance, resumes operation quickly after changes in the cluster, and maintains full replication of new writes even during a brick failure. by Athicha Muthitacharoen. Ph.D. 2009-06-30T16:30:19Z 2009-06-30T16:30:19Z 2008 2008 Thesis http://hdl.handle.net/1721.1/45877 320117896 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 96 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Muthitacharoen, Athicha, 1976- The expandable network disk |
| title | The expandable network disk |
| title_full | The expandable network disk |
| title_fullStr | The expandable network disk |
| title_full_unstemmed | The expandable network disk |
| title_short | The expandable network disk |
| title_sort | expandable network disk |
| topic | Electrical Engineering and Computer Science. |
| url | http://hdl.handle.net/1721.1/45877 |
| work_keys_str_mv | AT muthitacharoenathicha1976 theexpandablenetworkdisk AT muthitacharoenathicha1976 expandablenetworkdisk |