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Topic: Comparison of file systems

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In the News (Wed 20 Mar 19)

  Comparison of file systems - Biocrawler   (Site not responding. Last check: 2007-10-26)
Particular Installable File System drivers and operating systems may impose limits of their own, however.
The HPFS Installable File System driver for OS/2 uses the top 5 bits of the volume sector number for its own use, limiting the volume size that it can handle to 64GiB.
Particular Installable File System drivers may place restrictions of their own on file and directory names; and particular and operating systems may also place restrictions of their own, across all filesystems.
www.biocrawler.com /encyclopedia/Comparison_of_file_systems   (1391 words)

  A Comparison of File System Workloads
Characterizing file system behavior is difficult due to both the wide range of workloads and the difficulty in obtaining data to analyze.
This may be because file system traffic tends to be bursty[Grib98]--bursts of activity from single streams may cause a series of cache misses near enough to each other in time that there are few intervening cache misses from other processes in the same time period.
File systems that use extent-based or multiple block sizes [Powe77] [Hitz94] may be more efficient at handling the range of file sizes in use today.
research.microsoft.com /~lorch/papers/fs-workloads/fs-workloads.html   (9494 words)

 Scalability and Performance in Modern Filesystems
File systems at that time were designed as much to conserve the limited available disk space as to maximize performance.
Mapping sparse files is relatively straightforward for file systems that use block allocation, although large sparse files still require a large number of block pointers and thus still experience the inefficiencies of multiple layers of indirection.
This log file is one of the metadata files in the file system as discussed previously.
oss.sgi.com /projects/xfs/papers/xfs_white/xfs_white_paper.html   (10221 words)

 Better SCM Initiative : Comparison
File and folder moves require creating a new one and deleting the old one.
Files and directories can be added, deleted, and renamed between versions.
Yes and no. Files and directories are checked out and in individually, however you have to work in the context of a project, which consists of one or more directories.
better-scm.berlios.de /comparison/comparison.html   (3804 words)

 Journaling File Systems | Linux Magazine
Each extent is described by a triple, consisting of (file offset, starting block number, length), where file offset is the offset of the extent's first block from the beginning of the file, starting block number is the first block in the extent, and length is the number of blocks in the extent.
In the event of a system failure, the file system is restored to a consistent state by replaying the journal.
While advanced file systems are tailored primarily for the high throughput and high uptime requirements of servers (from single processor systems to clusters), these file systems can also benefit client machines where performance and reliability are wanted or needed.
www.linux-mag.com /id/1180   (4438 words)

 Comparison of file systems - Wikipedia, the free encyclopedia
Particular Installable File System drivers may place restrictions of their own on file and directory names; and particular and operating systems may also place restrictions of their own, across all filesystems.
System V Release 4, and some other Unix systems, retrofitted symbolic links to their versions of the Version 7 Unix file system, although the original version didn't support them.
File permission in 9P are a variation of the traditional Unix permissions with some minor changes, eg.
en.wikipedia.org /wiki/Comparison_of_file_systems   (2334 words)

 Accurate and Efficient Replaying of File System Traces
One of the most common examples is the replaying of TPC [35] traces on file systems, because running the actual benchmark is complicated and requires a database system.
System call replayers have non-zero overheads that do not allow them to replay high I/O rates of high-performance applications, or spikes of activity for applications that may issue most of their I/O requests at low rates.
Second, files that were not accessed during the trace are not known to the system, and those files could have affected the file system's layout and age.
www.fsl.cs.sunysb.edu /docs/replayfs   (9548 words)

 BULMA: Journal File Systems in Linux
Files are normally organised in a tree-like hierarchy where intermediate nodes are directories, which in turns are capable of grouping files and sub-directories.
The file system is the way the operating system organises, manages and maintains the file hierarchy into mass-storage devices, normally hard disks.
File data is read into the page cache lazily as processes attempt to access the mappings created with mmap() and generate page faults.
bulma.net /body.phtml?nIdNoticia=1154   (1018 words)

 File Systems - MS-DOS   (Site not responding. Last check: 2007-10-26)
File names in MS-DOS are shorter, but you're allowed to use more types of characters: besides the ASCII-set, it knows 128 other characters like the accent grave or the infinity sign.
Comparison between the file systems of MS-DOS and UNIX.
First thing to happen is MS-DOS looking for a free file descriptor in the file descriptor table (contains a 1 byte index in the central system file table {which is similar to the i-node in UNIX] that marks it in use/not in use).
members.tripod.com /keetwitnie/msdos.htm   (1080 words)

 File Systems - HFS+, UFS, FAT32 and NTFS, Operating Systems, Maximum Characters Allowed Comparison
Comparison of File and Directory Name and File Systems on Macintosh, PC and Unix Computers and Operating systems.
Max OSX supports HFS+ and UFS (Unix File System) and may be up to 255 characters long.
File and folder names may be up to 255 characters long on FAT file systems and 256 characters long on NTFS.
www.comentum.com /File-Systems-HFS-FAT-UFS.html   (301 words)

 Solaris 10
The UNIX File System (UFS) is the primary file system for the Solaris Operating System.
The Network File System (NFS) was developed by Sun and introduced in the mid-80s as one of the first and most successful examples of open network file sharing.
For example, to add mirrored file systems for three users and then add more disks, Solaris ZFS will reduce the number of tasks from 28 to five-—and the time required is cut from 40 minutes to 10 seconds.
www.sun.com /software/solaris/data_management.jsp   (958 words)

 Connection Magazine Fourth Quarter 2006: File System Monotony
Ext3 is considered the default file system for Linux as a whole, as well as the SUSE Linux Enterprise 10.
Their mission was to create a file system capable of complementing the storage requirements of the modern data center.
This is done by logically grouping contiguous disk space, called a virtual file system because of their independent management of inodes and free disk space.
www.novell.com /connectionmagazine/2006/q4/tech_talk_4.html   (2704 words)

 Notes about Linux file systems
A file body is a sequence of one or more extents, the extents being listed in an allocation map.
An inode allocation map is the file body of an inode table file, not a map.
A file is an inode with an attached (optional) allocation map describing a file body that contains data; a particular case of a file is a symbolic link, where the data in the file is a path name.
www.sabi.co.uk /Notes/linuxFS.html   (1565 words)

 A.2.┬áMajor File Systems in Linux
Its predecessor, the Extended File System, was implemented in April 1992 and integrated in Linux 0.96c.
After a system outage when the file system could not be cleanly unmounted, e2fsck starts to analyze the file system data.
Being a full 64-bit file system, JFS supports both large files and partitions, which is another reason for its use in server environments.
www.novell.com /documentation/suse91/suselinux-adminguide/html/apas02.html   (1853 words)

 Araxis Merge: Two and Three-Way File Comparison, Merging and Folder Synchronization Software
three-way folder comparison, enabling two revisions of a folder hierarchy to be merged with their common ancestor or some other folder hierarchy.
Thus it is possible to generate a report that is a complete record of all the differences in all of the files involved in a folder comparison.
folder comparisons, and to customize the behaviour and appearance of the application, including fonts, colours, whether the display is split horizontally or vertically, and more.
www.araxis.com /merge   (1035 words)

 Debian Administration :: Filesystems (ext3, reiser, xfs, jfs) comparison on Debian Etch
File system creation time is not an important consideration as you do it only once.
The problem is, journaling file systems write data to the journal before they write it to the final location on the disk.
So shredding the file blocks on the disk, an attacker might be able to recover data from wherever on the disk the journal is located, even if the data blocks are unreadable.
www.debian-administration.org /articles/388   (10471 words)

 Common threads: Advanced filesystem implementor's guide, Part 1
When the system is rebooted and fsck starts its scan, it detects that these filesystems were not cleanly unmounted and makes a reasonable assumption that the filesystems probably aren't ready to be seen by the Linux filesystem drivers.
Although some recently-modified data may have been lost due to the unexpected power failure or system lockup, since the meta-data is now consistent, the filesystem is ready to be mounted and be put to use.
Since the file data and the stat_data (inode) information are stored right next to each other, they can normally be read with a single disk IO operation.
www-106.ibm.com /developerworks/library/l-fs.html   (2403 words)

 Server Operating Systems Technical Comparison
For non-technical persons: A general overview of operating systems for non-technical people is located at: kinds of operating systems.
Brief summaries of operating systems are located at: summaries of operating systems.
The holistic area looks at operating systems from a holistic point of view and particular subjects in that presentation may be useful for comparison.
www.osdata.com   (1323 words)

 Shared File Systems: Why Pay More?
By comparison, shared file systems often have limits on the number of hosts you can attach, and the complexity of administration is almost always significantly greater.
With shared file systems, especially some of the higher-end file systems, backup is accomplished via an additional purchase option for HSM software.
The problem is that file systems as we know them have been around since about 1965 (see Choosing a File System or Volume Manager), and we need a paradigm shift to make NAS and shared file systems scalable and high-performance.
www.enterprisestorageforum.com /sans/features/article.php/3496431   (1735 words)

 Dallas/Ft. Worth Unix Users Group
The goal of this presentation is to elaborate on the terminology's surrounding the file systems that are being used in a Linux
a local file system solution, some of the features embedded in the design have the potential to revolutionize the file system industry.
However, it is very important to remember to reduce the size of the file system or whatever is residing in the volume before shrinking the volume itself, otherwise you risk losing data.
www.dfwuug.org /wiki/Main/FileSystems   (724 words)

 Linux Journal |   (Site not responding. Last check: 2007-10-26)
Last fall, Berkeley Data Systems ran a "Programmer Deathmatch", offering a $10,000 prize to the one programmer who successfully navigated 3 timed rounds of programming competition.
Under normal circumstances this switch wouldn't be a problem, but many contemporary distros and live discs cause the keyboard to vanish from recognition by the system, leaving me with an unusable machine (the problem has something to do with the HID module).
The installation and configuration went smoothly, the system is happy with my USB keyboard, and the old box now has a new lease on life, with a shiny new 2.6.19 Linux kernel optimized for realtime performance.
www.linuxgazette.com /issue55/florido.html   (953 words)

 TTZ Forums - Comparison of File Systems, Interfaces and OSes for an External HD
TTZ Forums - Comparison of File Systems, Interfaces and OSes for an External HD Main
Comparison of File Systems, Interfaces and OSes for an External HD
A comparison of the performance of an Ultra 3.5\" External Hard Drive Enclosure with different File Systems (FAT32, NTFS, MacHFS+), Interfaces (Firewire, USB2.0), and OSes (Windows XP and Mac OSX).
www.thetechzone.com /forums/showthread.php?computers&s=6b1bd6d1c802ab53fb173800a140b357&forumid=38&threadid=89882   (97 words)

A discussion and comparison of various file systems
the data area, where files and subdirectories are stored.
The Attribute byte is similar to the file 'mode' under UNIX filesystems:
osdev.berlios.de /osd-fs.html   (473 words)

 Computer File Systems
Isilon® Systems, the leader in clustered storage, today announced that MySpace, the premier lifestyle portal, has made an initial deployment of 20 Terabytes of Isilon IQ clustered storage to meet the substantial media consumption demands of its more than 40 million members.
The truly wonderful part of the NetInfo database is that you can use it to automatically mount remote file systems at login time.
WinFS is Microsoft's new SQL-based file system technology that is slated for release as an add-on shortly after Windows Vista.
www.mrsci.com /Computer-File-Systems/index.php   (1123 words)

 Comparison to File Caching (“WAFS”) | Silver Peak Systems, Inc.
Wide-Area File Services (WAFS) emerged in the last few years as a way of improving data access delays inherent in traditional remote file protocols.
While file services are essential to enterprise operations, and should be a fundamental component of any application acceleration solution, enterprises have balked at the notion of deploying a dedicated point solution based heavily on caching, as is the case with WAFS.
This means that IT organizations are replacing actual file servers with less secure devices that require just as much day-to-day management.
www.silver-peak.com /Solutions/Compare_Silver_Peak/compareWAFS.htm?pid=google-bake-off   (350 words)

 Compare and Merge: The File Compare Utility for Windows
Compare and Merge is the Windows file compare utility for detecting and merging differences between text files and folders, compare source code, compare program output, etc.
ViceVersa provides folder hierarchy comparison and visual folder synchronization.
ViceVersa is the market leader in file and folder synchronization and replication.
www.compareandmerge.com   (256 words)

 Smarter.com Comparison Shopping - Compare Prices, Read Reviews & Buy Online
According to Engadget, it looks like they have found someone that can crack the iPhone SIM lock system and allow users to choose their own provider and allow those outside the United States to have a fully functional iPhone.
Using an unbiased system to compare prices on products from thousands of different merchants, Smarter.com helps you find the product you need for the best price.
Note: Smarter.com is a comparison shopping website that compares prices and products at online stores to help consumers save money.
www.smarter.com   (733 words)

 OSNews : xpclient
Can someone point me to some URL where ALL the features new to/planned for Longhorn Server are listed?
Time Machine and the Future of the File System
I've found www.automise.com which is for Windows quite similar to Automator.
www.osnews.com /userfeed.php?uid=8113   (131 words)

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