Network assisted file system consistency checking

This thesis reports on the design and implementation of Network Assisted NFSCK (or NAN), an extension to NFSCK, a research project about checking file system consistency at NetApp. NFSCK requires disk space to store temporary files, but sometimes insufficient disk space is available, and NFSCK cannot be used. NAN allows NFSCK to use an NFS server to store these temporary files. Tests were run to compare the total running time of NAN and NFSCK on various machines and data sets. Results showed that CPU was the limiting factor for NAN's performance. On machines with four CPUs, the running time of NAN was within 1% of the running time of NFSCK. On machines with two CPUs, running time was up to 6% worse with a large file data set, and up to 22% worse with a small file data set.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2011

Author dc:creator

• Zehender, Nicholas (Nicholas G.)

Advisor dc:contributor.advisor

• Farshid Eslami-Sarab and M. Frans Kaashock.

• Electrical Engineering and Computer Science.

Statement dc:rights

• 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.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/77538

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/77538