Skip to content
Free planNo credit card requiredStart writing
AI for Research home
AI for Research home
Dashboard
Sign inGet started

Search 250 million research papers

Read the abstract, see who wrote it and who cites it, and get the citation in APA, MLA, Chicago or Harvard.

About 10,000 papers for “File system”

File System

Matthew Campbell · Apress eBooks · 2012

This chapter covers working with the file system on Mac and iOS.KeywordsFile SystemDirectory ReferenceCode ListingFile ManagerSolution SolutionThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Cited by 0

file system

jaut gang, prashant, Aditya , Prashant singh, jaut gang, Aditya, jaut gang, prashant singh et al. · Zenodo (CERN European Organization for Nuclear Research) · 2024

Cited by 0Open access

File System

Josh Shaul, Aaron Ingram · Elsevier eBooks · 2007

Cited by 0

File system

Yarovyi, O. · Electronic Sumy State University Institutional Repository (Sumy State University) · 2015

Nowadays, many people use electronic devices. For example, it is can be cameras, mobile phones, computers and others. The file system is a very important component of any device that works with the file.

Cited by 0

File System

Jaron Bradley · Elsevier eBooks · 2016

Cited by 1

File System

Priyanka Sahni, Nonika Sharma · Journal of Advance Research in Computer Science & Engineering (ISSN 2456-3552) · 2014

A file is a named collection of related information that is recorded on secondary storage such as magnetic disks, magnetic tapes and optical disks. In general, a file is a sequence of bits, bytes, lines or records whose meaning is defined by the files creator and user. In our research paper we’re going to focus on File Structure, File Type, File Names, Pathnames. File Structure - It is a structure, which is according to a required format that operating system can understand. File types also can be used to indicate the internal structure of the file. File Type – It refers to the ability of the operating system to distinguish different types of file such as text files, source files and the binary files etc .Many Operating system supports many types of files .Operating system like MS-DOS and UNIX have following types of files:

Cited by 0Open access

File System

Mcvoy Kleiman Sun, L. W. Mcvoy · 1991

In an effort to meet the increasing throughput demands on the SunOS file system made both by applications and higher performance hardware, several optimization paths were examined. The principal constraints were that the on-disk file system format remain the same and that whatever changes were necessary not be user-visible. The solution arrived at was to approximate the behavior of extent based file systems by grouping I/O operations into clusters instead of dealing in individual blocks. A single clustered I/O may take the place of 15-30 block I/Os, resulting in a factor of two increased sequential performance increase. The changes described were restricted to a small portion of the file system code; no user-visible changes were necessary and the on-disk format was not altered. Introduction File systems are a common place to find performance problems. The original UNIX file system [Thompson] is elegant in its simplicity: it has a single block size and a simple list based allo...

Cited by 0

File System Virtual Appliances: Portable File System Implementations

Michael Abd-El-Malek, Matthew Wachs, James Cipar et al. · 2009

File system virtual appliances (FSVAs) address the portability headaches that plague file system (FS) developers.By packaging their FS implementation in a VM, separate from the VM that runs user applications, they can avoid the need to port the file system to each OS and OS version.A small FS-agnostic proxy, maintained by the core OS developers, connects the FSVA to whatever OS the user chooses.This paper describes an FSVA design that maintains FS semantics for unmodified FS implementations and provides desired OS and virtualization features, such as a unified buffer cache and VM migration.Evaluation of prototype FSVA implementations in Linux and NetBSD, using Xen as the VMM, demonstrates that the FSVA architecture is efficient, FS-agnostic, and able to insulate file system implementations from OS differences that would otherwise require explicit porting.

Cited by 4

An Internet Accessible File System (Web File System)

Syed Asim Imtiaz, M. Amyn Ghazali, Talha Ekram et al. · 2008

This paper proposes an Internet-accessible file system which is distributed, de-centralized, scalable and most importantly accessible by Web Services API (or a protocol) through Internet. We are not re-inventing the wheel by creating a brand new filesystem from scratch, instead we are creating a layer above existing file systems – this layer will bring Internet accessibility to the underlying file system (and files). Many Distributed file systems have been developed to cater the growing needs of data storage. These distributed systems usually work on a specific file system and make use of certain protocols (for example Network File System, SMB, etc.). Although these systems provide a set of primitive for file operations integrated with the OS, but none of them are capable enough to be an Internet accessible file-system. With the success of this proposed file system users will be able to access file-system residing on a remote location all by means of a Web API (or protocol). As the file-system will be de-centralized and residing on a remote location it will provide for easy scalability options. Internet has already become a widely available resource we utilize this to our advantage and base the functioning of our File System over the Internet.

Cited by 0

File System Virtual Appliances: Portable File System Implementations

Michael Abd-El-Malek, Matthew Wachs, James Cipar et al. · 2010

File system virtual appliances (FSVAs) address the portability headaches that plague file system (FS) developers.By packaging their FS implementation in a VM, separate from the VM that runs user applications, they can avoid the need to port the file system to each OS and OS version.A small FS-agnostic proxy, maintained by the core OS developers, connects the FSVA to whatever OS the user chooses.This paper describes an FSVA design that maintains FS semantics for unmodified FS implementations and provides desired OS and virtualization features, such as a unified buffer cache and VM migration.Evaluation of prototype FSVA implementations in Linux and NetBSD, using Xen as the VMM, demonstrates that the FSVA architecture is efficient, FS-agnostic, and able to insulate file system implementations from OS differences that would otherwise require explicit porting.

Cited by 1

File system virtual appliances: Portable file system implementations

Michael K. Reiter, Matthew Wachs, Garth A. Gibson et al. · Carolina Digital Repository (University of North Carolina at Chapel Hill) · 2021

File system virtual appliances (FSVAs) address the portability headaches that plague file system (FS) developers. By packaging their FS implementation in a VM, separate from the VM that runs user applications, they can avoid the need to port the fi le system to each OS and OS version. A small FS-agnostic proxy, maintained by the core OS developers, connects the FSVA to whatever OS the user chooses. This paper describes an FSVA design that maintains FS semantics for unmodi ed FS implementations and provides desired OS and virtualization features, such as a uni fied buffer cache and VM migration. Evaluation of prototype FSVA implementations in Linux and NetBSD, using Xen as the VMM, demonstrates that the FSVA architecture is efficient, FS-agnostic, and able to insulate fi le system implementations from OS differences that would otherwise require explicit porting.

Cited by 1Open access

Active Disk File System : A Distributed, Scalable File System

Hyeran Lim, Vikram Kapoor, Chirag Wighe et al. · Digest of papers - IEEE Symposium on Mass Storage Systems · 2001

Consistent improvements in processor and memory technology have led to disks having greater processing power and cache memory in a compact size. This increased processing power and memory allows disks to execute more than just the basic disk operations, sometimes, even run user defined codes. Offloading part of the application processing to the disks can help reducing the latency of data manipulation as well as the amount of data transferred across the network. Such disks are called active disks. In this paper, a file system for the active-disk-based data server (ADFS) is proposed. All data files stored on active disks are provided with operations, forming objects. For some applications such as database, application-specific operations can be run by disk processors so that only the results are returned to clients, rather than whole data file is read by the clients. Therefore, ADFS is able to reduce the application-processing overhead of the system. In ADFS, part of file system functionality of the file manager can be delegated to active disks. Our implementation is based on CORBA specification. A set of file system interfaces is implemented for each module of each file system component. Part of the file system functionality, such as lookup, is embedded in the modules for active disks. We tested the performance of ADFS with 64 files in three-layer directory system. The performance results are obtained in a limited manner and presented in this paper. Our ADFS is basically stateful, but the delegation of file system functionality to disks allows our file system to be more scalable and helps to overcome some of the limitations of current prevailing file systems, like NFS, by greatly reducing the work of the central file manager. In addition, it is conceivable that the central file manager could be eliminated altogether.

Cited by 26

Application of Distributed File System in Marketing File System

Fang Zho · 2015

The marketing file system of Zhejiang(Provincial) Electric Power Company now is fully applied in the whole province.The fast growth of file data brings stricter requirements on storage of electronic files and other nonstructural data.By investigating features of distributed file system and taking the application of Moose FS distributed file system in marketing file system as an example,it is verified that the distributed file system is superior to the concentrated storage in terms of load balance,online capacity expansion and so on.The application of distributed file system provides a feasible solution to massive data storage of marketing file system.

Cited by 0

Large File System Backup: NERSC Global File System Experience

Akbar Mokhtarani, Matthew Andrews, Jason Hick et al. · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2008

NERSC's Global File system (NGF), accessible from all compute systems at NERSC, holds files and data from many scientific projects. A full backup of this file system to our High Performance Storage System (HPSS) is performed periodically. Disk storage usage by projects at NERSC has grown seven fold over a two year period, from ~;;20TB in June 2006 to ~;;140 TB in June 2008. The latest full backup took about 13 days and more than 200 T10k tape cartridges (.5 TB capacity). Petabyte file systems are becoming a reality in the next few years and the existing utilities are already strained in handling backup tasks.

Cited by 0Open access