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NWFS
In computing, a NetWare File System (NWFS) is a file system based on a heavily modified version of FAT. It was used in the Novell NetWare operating system. It is the default and only file system for all volumes in versions 2.x through 4.x, and the default and only file system for the SYS volume continuing through version 5.x. Novell developed two varieties of NWFS: # 16-bit NWFS 286, used in NetWare 2.x # 32-bit NWFS 386, used in NetWare 3.x through NetWare 6.x. Novell Storage Services (NSS, released in 1998), superseded the NWFS format. The NWFS on-disk format was never publicly documented by Novell. The published specifications for 32-bit NWFS are: * Maximum file size: 4 GB * Maximum volume size: 1 TB * Maximum files per volume: 2 million when using a single name space. * Maximum files per server: 16 million * Maximum directory entries: 16 million * Maximum volumes per server: 64 * Maximum volumes per partition: 8 * Maximum open files per server: 100,000 * Maximum directory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NWFS 286
In computing, a NetWare File System (NWFS) is a file system based on a heavily modified version of FAT. It was used in the Novell NetWare operating system. It is the default and only file system for all volumes in versions 2.x through 4.x, and the default and only file system for the SYS volume continuing through version 5.x. Novell developed two varieties of NWFS: # 16-bit NWFS 286, used in NetWare 2.x # 32-bit NWFS 386, used in NetWare 3.x through NetWare 6.x. Novell Storage Services (NSS, released in 1998), superseded the NWFS format. The NWFS on-disk format was never publicly documented by Novell. The published specifications for 32-bit NWFS are: * Maximum file size: 4 GB * Maximum volume size: 1 TB * Maximum files per volume: 2 million when using a single name space. * Maximum files per server: 16 million * Maximum directory entries: 16 million * Maximum volumes per server: 64 * Maximum volumes per partition: 8 * Maximum open files per server: 100,000 * Maximum directory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NWFS 386
In computing, a NetWare File System (NWFS) is a file system based on a heavily modified version of FAT. It was used in the Novell NetWare operating system. It is the default and only file system for all volumes in versions 2.x through 4.x, and the default and only file system for the SYS volume continuing through version 5.x. Novell developed two varieties of NWFS: # 16-bit NWFS 286, used in NetWare 2.x # 32-bit NWFS 386, used in NetWare 3.x through NetWare 6.x. Novell Storage Services (NSS, released in 1998), superseded the NWFS format. The NWFS on-disk format was never publicly documented by Novell. The published specifications for 32-bit NWFS are: * Maximum file size: 4 GB * Maximum volume size: 1 TB * Maximum files per volume: 2 million when using a single name space. * Maximum files per server: 16 million * Maximum directory entries: 16 million * Maximum volumes per server: 64 * Maximum volumes per partition: 8 * Maximum open files per server: 100,000 * Maximum directory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of File Systems
The following tables compare general and technical information for a number of file systems. General information Limits Metadata Features File capabilities Block capabilities Note that in addition to the below table, block capabilities can be implemented below the file system layer in Linux ( LVM, integritysetup, cryptsetup) or Windows (Volume Shadow Copy Service, SECURITY), etc. Resize capabilities "online" and "offline" are synonymous with "mounted" and "not mounted". Allocation and layout policies OS support See also * List of file systems * Comparison of file archivers * List of archive formats * Comparison of archive formats Notes References External links A speed comparison of filesystems on Linux 2.4.5(archived) Filesystems (ext3, reiser, xfs, jfs) comparison on Debian Etch{{Webarchive, url=https://web.archive.org/web/20180304191727/https://debian-administration.org/article/388/Filesystems_ext3_reiser_xfs_jfs_comparison ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novell NetWare
NetWare is a discontinued computer network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, using the IPX network protocol. The original NetWare product in 1983 supported clients running both CP/M and MS-DOS, ran over a proprietary star network topology and was based on a Novell-built file server using the Motorola 68000 processor. The company soon moved away from building its own hardware, and NetWare became hardware-independent, running on any suitable Intel-based IBM PC compatible system, and able to utilize a wide range of network cards. From the beginning NetWare implemented a number of features inspired by mainframe and minicomputer systems that were not available in its competitors' products. In 1991, Novell introduced cheaper peer-to-peer networking products for DOS and Windows, unrelated to their server-centric NetWare. These are NetWare Lite 1.0 (NWL), and later Personal& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fork (filesystem)
In a computer file system, a fork is a set of data associated with a file-system object. File systems without forks only allow a single set of data for the contents, while file systems with forks allow multiple such contents. Every non-empty file must have at least one fork, often of default type, and depending on the file system, a file may have one or more other associated forks, which in turn may contain primary data integral to the file, or just metadata. Unlike ''extended attributes'', a similar file system feature which is typically of fixed size, forks can be of variable size, possibly even larger than the file's primary data fork. The size of a file is the sum of the sizes of each fork. Alternatives On file systems without forks, one may instead use multiple separate files that are associated with each other, particularly sidecar files for metadata. However, the connection between these files is not automatically preserved by the file system, and must instead be handled by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
File Allocation Table
File Allocation Table (FAT) is a file system developed for personal computers. Originally developed in 1977 for use on floppy disks, it was adapted for use on hard disks and other devices. It is often supported for compatibility reasons by current operating systems for personal computers and many mobile devices and embedded systems, allowing interchange of data between disparate systems. The increase in disk drives capacity required three major variants: FAT12, FAT16 and FAT32. The FAT standard has also been expanded in other ways while generally preserving backward compatibility with existing software. FAT is no longer the default file system for Microsoft Windows computers. FAT file systems are still commonly found on floppy disks, flash and other solid-state memory cards and modules (including USB flash drives), as well as many portable and embedded devices. FAT is the standard file system for digital cameras per the DCF specification. Overview Concepts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novell Storage Services
Novell Storage Services (NSS) is a file system used by the Novell NetWare operating system. Support for NSS was introduced in 2004 to SUSE Linux via low-level network NCPFS protocol. It has some unique features that make it especially useful for setting up shared volumes on a file server in a local area network. NSS is a 64-bit journaling file system with a balanced tree algorithm for the directory structure. Its published specifications (as of NetWare 6.5) are: * Maximum file size: 8 EB * Maximum partition size: 8 EB * Maximum device size (Physical or Logical): 8 EB * Maximum pool size: 8 EB * Maximum volume size: 8 EB * Maximum files per volume: 8 trillion * Maximum mounted volumes per server: unlimited if all are NSS * Maximum open files per server: no practical limit * Maximum directory tree depth: limited only by client * Maximum volumes per partition: unlimited * Maximum extended attributes: no limit on number of attributes. * Maximum data streams: no limit on number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley (Berkeley Software Distribution, BSD), Microsoft (Xenix), Sun Microsystems (SunOS/Solaris (operating system), Solaris), Hewlett-Packard, HP/Hewlett Packard Enterprise, HPE (HP-UX), and IBM (IBM AIX, AIX). In the early 1990s, AT&T sold its rights in Unix to Novell, which then sold the UNIX trademark to The Open Group, an industry consortium founded in 1996. The Open Group allows the use of the mark for certified operating systems that comply with the Single UNIX Specification (SUS). Unix systems are chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disk File Systems
In computing, file system or filesystem (often abbreviated to fs) is a method and data structure that the operating system uses to control how data is stored and retrieved. Without a file system, data placed in a storage medium would be one large body of data with no way to tell where one piece of data stopped and the next began, or where any piece of data was located when it was time to retrieve it. By separating the data into pieces and giving each piece a name, the data are easily isolated and identified. Taking its name from the way a paper-based data management system is named, each group of data is called a "file". The structure and logic rules used to manage the groups of data and their names is called a "file system." There are many kinds of file systems, each with unique structure and logic, properties of speed, flexibility, security, size and more. Some file systems have been designed to be used for specific applications. For example, the ISO 9660 file system is designe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression File Systems
Compression may refer to: Physical science * Compression (physics), size reduction due to forces *Compression member, a structural element such as a column *Compressibility, susceptibility to compression *Gas compression * Compression ratio, of a combustion engine *Compression (geology) *Compression or compressive strength Information science *Data compression, reducing the data required for information * Audio compression (data), reducing the data required for audio *Bandwidth compression * Compression artifact, defect in data due to compression * Image compression, of digital images * Video compression *One-way compression function, a cryptographic primitive *Dynamic range compression, reducing audio dynamic range Medicine *Brain compression, a medical condition * Compression bandage *Pressing on the lower abdominal area in an intravenous pyelogram *Cold compression therapy, for minor injuries Other *Amplifier gain compression, due to nonlinearity *Compression (dance), severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transaction-Safe FAT File System
Transaction-Safe FAT File System (TFAT) and Transaction-Safe Extended FAT File System (TexFAT) refer to two file systems used in Microsoft products to provide transaction-safety for data stored on a disk. The goal is to reduce the risk of data loss in cases of power loss or unexpected removal of the drive. The latter problem has become more common with the spread of USB drives. TFAT The ''Transaction-Safe FAT File System'' (TFAT) of the TFAT12, TFAT16 and TFAT32 file systems is a driver layer modification to the original FAT file systems FAT12, FAT16 and FAT32 maintaining two copies (FAT 0 and FAT 1) of the file allocation table instead of two identical ones. While performing a drive operation, changes would be made to FAT 1. When the operation is complete, the FAT 1 table would be copied to FAT 0, updating the stable view of the file system. TexFAT The ''Transaction-Safe Extended FAT File System'' (TexFAT), TexFAT provides similar functionality to TFAT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of File Systems
The following lists identify, characterize, and link to more thorough information on Computer file systems. Many older operating systems support only their one "native" file system, which does not bear any name apart from the name of the operating system itself. Disk file systems Disk file systems are usually block-oriented. Files in a block-oriented file system are sequences of blocks, often featuring fully random-access read, write, and modify operations. * ADFS – Acorn's Advanced Disc filing system, successor to DFS. * AdvFS – Advanced File System, designed by Digital Equipment Corporation for their Digital UNIX (now Tru64 UNIX) operating system. * APFS – Apple File System is a next-generation file system for Apple products. * AthFS – AtheOS File System, a 64-bit journaled filesystem now used by Syllable. Also called AFS. * BFS – the Boot File System used on System V release 4.0 and UnixWare. * BFS – the Be File System used on BeOS, occasionally misnamed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
