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A Method to Adapt Storage Protocol Stack Using Custom File Metadata to Commodity Linux Servers

Takayuki Fukatani, Atsushi Sutoh, Takahiro Nakano
2018 International journal of smart computing and artificial intelligence  
In this study, we propose a new metadata management module named the protocol metadata module (PMM) that enables the custom file metadata to be used on commodity Linux servers.  ...  The PMM uses a portable operating system interface (POSIX)-based Linux interface to store the custom file metadata in Linux filesystems so that the protocol stacks can use the custom file metadata without  ...  Access Performance Measurement Environment We used a commodity server (Dell ii R610) as an NFS server in the following evaluations.  ... 
doi:10.52731/ijscai.v2.i1.228 fatcat:q5zt6p3cpnhcrkocn5i3g26kq4

Fast Consistency Checking for the Solaris File System

J. Kent Peacock, Ashvin Kamaraju, Sanjay Agrawal
1998 USENIX Annual Technical Conference  
An NFS server must guarantee the permanence of changes to the file system before acknowledging an NFS request.  ...  We evaluated the system using the LADDIS benchmark and as a result, developed a cacheing technique for blockmapping information that gav e us a 23% increase in measured server throughput in our standard  ...  local file system for use in an NFS server.  ... 
dblp:conf/usenix/PeacockKA98 fatcat:jiejbra4zvauhcxoussnt5747m

Serverless network file systems

T. E. Anderson, M. D. Dahlin, J. M. Neefe, D. A. Patterson, D. S. Roselli, R. Y. Wang
1995 Proceedings of the fifteenth ACM symposium on Operating systems principles - SOSP '95  
While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services.  ...  Any machine in the system can store, cache, or control any block of data.  ...  an entry in the imap that points to that file's disk metadata in the log.  ... 
doi:10.1145/224056.224066 dblp:conf/sosp/AndersonDNPRW95 fatcat:lkaxt6ztczhczccm3s6bxaipnm

A virtual shared metadata storage for HDFS

Jiang Zhou, Yong Chen, Xiaoyan Gu, Weiping Wang, Dan Meng
2015 2015 IEEE International Conference on Networking, Architecture and Storage (NAS)  
First, when the metadata server stores metadata on persistent devices, it is restricted to read and write operations of local disks.  ...  In this research, we introduce a novel Virtual Shared Storage Pool (VSSP) concept and design for storing and sharing metadata in HDFS.  ...  The cluster has two metadata servers: an active namenode which provides metadata service and a backup node as a hot standby.  ... 
doi:10.1109/nas.2015.7255195 dblp:conf/nas/ZhouCGWM15 fatcat:otndhyex5bashdimmsgz3wspze

Serverless network file systems

T. E. Anderson, M. D. Dahlin, J. M. Neefe, D. A. Patterson, D. S. Roselli, R. Y. Wang
1995 ACM SIGOPS Operating Systems Review  
While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services.  ...  Any machine in the system can store, cache, or control any block of data.  ...  an entry in the imap that points to that file's disk metadata in the log.  ... 
doi:10.1145/224057.224066 fatcat:qjr5c37gezhnnfna6px6m6a7q4

Minimizing Metadata Access Latency in Wide Area Networked File Systems [chapter]

Jian Liang, Aniruddha Bohra, Hui Zhang, Samrat Ganguly, Rauf Izmailov
2006 Lecture Notes in Computer Science  
We show through extensive simulations that even in the WAN setting, access latency over WireFS is comparable to NFS performance in the LAN setting; the migration overhead is also marginal.  ...  We present WireFS, a Wide Area File System, which enables delegation of metadata management to nodes at client sites (homes).  ...  Acknowledgements We thank the Harvard University SOS project team, especially Daniel Ellard, Jonathan Ledlie, and Christopher Stein for providing the NFS traces and answering several questions.  ... 
doi:10.1007/11945918_32 fatcat:4lvhcflcd5dbpc26qblpnfunh4

Serverless Network File Systems [chapter]

2009 High Performance Mass Storage and Parallel I/O  
While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services.  ...  Any machine in the system can store, cache, or control any block of data.  ...  an entry in the imap that points to that file's disk metadata in the log.  ... 
doi:10.1109/9780470544839.ch24 fatcat:ji4enfuitrdblmyrlkgx3hoixi

Serverless network file systems

Thomas E. Anderson, Michael D. Dahlin, Jeanna M. Neefe, David A. Patterson, Drew S. Roselli, Randolph Y. Wang
1996 ACM Transactions on Computer Systems  
While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services.  ...  Any machine in the system can store, cache, or control any block of data.  ...  an entry in the imap that points to that file's disk metadata in the log.  ... 
doi:10.1145/225535.225537 fatcat:4kz7uzgrszdhrivrnhsq4jkzxm

Scalable Index Update for Block-Level Continuous Data Protection

Maohua Lu, Dilip Simha, Tzi-cker Chiueh
2011 2011 IEEE Sixth International Conference on Networking, Architecture, and Storage  
A block-level continuous data protection (CDP) system logs every disk update to a network storage server it protects, so as to support more flexible recovery time objective (RTO) and recovery point objective  ...  This paper describes the design and implementation of a high-performance index update mechanism that logs index updates, batches them in memory, and commits them using mostly sequential disk I/O.  ...  NFS client machine accessing the same file system on an NFS server, which corresponds to the application server on the Mariner testbed. 12% of these NFS requests are write requests.  ... 
doi:10.1109/nas.2011.54 dblp:conf/nas/LuSC11 fatcat:nfxw6smhrbfsnambs66sflcoda

Analyzing Metadata Performance in Distributed File Systems [chapter]

Christoph Biardzki, Thomas Ludwig
2009 Lecture Notes in Computer Science  
DMetabench significantly improves on existing benchmarks and allows stress on metadata operations in a distributed file system in a parallelized manner.  ...  As measurements in larger distributed environments may exhibit performance artifacts difficult to explain by reference to average numbers, DMetabench uses a time-logging technique to record time-related  ...  Metadata logging Metadata logging, which is analogous to the transaction techniques used in databases [Gra81] , involves keeping a write-ahead change log for metadata.  ... 
doi:10.1007/978-3-642-03275-2_2 fatcat:uwgbix6n4vgetl6sn5s6zhaoum

Keypad

Roxana Geambasu, John P. John, Steven D. Gribble, Tadayoshi Kohno, Henry M. Levy
2011 Proceedings of the sixth conference on Computer systems - EuroSys '11  
By encrypting files locally but storing encryption keys remotely, Keypad requires the involvement of an audit server with every protected file access.  ...  Second, a user can disable future file access after a device's loss, even in the absence of device network connectivity.  ...  This work was supported by NSF grants CNS-0846065, CNS-0627367, and CNS-1016477, the Google Fellowship in Cloud Computing, the Alfred P.  ... 
doi:10.1145/1966445.1966447 dblp:conf/eurosys/GeambasuJGKL11 fatcat:wrx6emw2dnewbcktyrayusiqhy

Algorithms for increasing performance in distributed file systems

Pavel Bžoch, Jiří Šafařík
2012 Acta Electrotechnica et Informatica  
In the paper, traditional DFS like AFS, NFS and SMB will be explored. These DFS were chosen because of their frequent usage.  ...  These include the organization of data and metadata storage, usage of caching, and design of replication algorithms. This paper provides overview of existing algorithms which are used in DFS.  ...  NFS has two main elements: a client and a data server. NFS can be extended into pNFS (parallel NFS), which contains one more server called metadata server.  ... 
doi:10.2478/v10198-012-0005-7 fatcat:52om3lw63fhx3hdnygjhomfhsq

Design and Implementation of Metadata Cache Management Strategy for the Distributed File System

Jingning Liu, Junjian Chen, Wei Tong, Lei Tian, Cong Chen
2014 International Journal of Grid and Distributed Computing  
And this strategy not only improves the performance of metadata services, reducing the user access latency, but also controls metadata cache consistency very well.  ...  At the same time, the MDS's log module will record information about every step of the metadata operation, If the system failures when execute operation of metadata, Log module will use the log information  ...  An NFS Client periodically detects whether a file has been modified, if the file has been modified, the Client will set the file cache is invalid.  ... 
doi:10.14257/ijgdc.2014.7.3.09 fatcat:z7kzqqzm6ndgjkwonh3xjexxxm

An Efficient, Nonintrusive, Log-Based I/O Mechanism for Scientific Simulations on Clusters

Soumyadeb Mitra, Rishi Rakesh Sinha, Marianne Winslett, Xiangmin Jiao
2005 Proceedings IEEE International Conference on Cluster Computing  
LBIO uses local disks to create a log of all I/O calls, and uses a background thread to replay the log at the rate that best utilizes the server and network resources.  ...  To address this problem, we propose Log-Based I/O (LBIO), an approach that can substantially increase the I/O performance of simulations on clusters by utilizing free space on the cluster's local disks  ...  The cluster has a single Apple XRaid Storage server with 7TB of storage space, connected to a Linux NFS server over a 2Gbps Fibre Channel Interface.  ... 
doi:10.1109/clustr.2005.347041 dblp:conf/cluster/MitraSWJ05 fatcat:77idrczcjfbshedc6gvzbrcw24

Assise: Performance and Availability via Client-local NVM in a Distributed File System

Thomas E. Anderson, Marco Canini, Jongyul Kim, Dejan Kostic, Youngjin Kwon, Simon Peter, Waleed Reda, Henry N. Schuh, Emmett Witchel
2020 USENIX Symposium on Operating Systems Design and Implementation  
We compare Assise to Ceph/BlueStore, NFS, and Octopus on a cluster with Intel Optane DC PMMs and SSDs for common cloud applications and benchmarks, such as LevelDB, Postfix, and FileBench.  ...  This work is supported in part by ERC grant 770889, NSF grant CNS-1900457, and the Texas Systems Research Consortium.  ...  Waleed Reda was supported by a fellowship from the Erasmus Mundus Joint Doctorate in Distributed Computing (EMJD-DC), funded by the European Commission (EACEA) (FPA 2012-0030).  ... 
dblp:conf/osdi/AndersonCKKKPRS20 fatcat:ze5lqt52dnfd7mptrdce6d3z7a
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