Network assisted file system consistency checking
Name
826644630-MIT.pdf
Description
Full printable version
Size
4.82 MB
Format
Adobe PDF
Checksum (MD5)
9cdd4f684c6196b374cb7bf362b2f2d1
Author(s)
Zehender, Nicholas (Nicholas G.)
Advisor(s)
Farshid Eslami-Sarab and M. Frans Kaashock.
Alternative Title
Network-assisted consistency checking for WAFL
Network-assisted consistency checking for Write Anywhere File Layout
Date Issued
2011
Publisher
Massachusetts Institute of Technology
Abstract
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.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 63-64).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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