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FileSystem > NTFS

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Tuxera NTFS for Mac delivers the fastest NTFS data transfer speeds you can have on Mac while protecting your data with its new, smart caching layer. The software has full support for the new 64-bit kernels introduced with Snow Leopard and OS X Mavericks, and comes with advanced features only available from Tuxera such as support for NTFS extended attributes. Oct 18, 2017  Tuxera NTFS 2016 Final + Serial Key for MAC OS X the streamlined and easy-to-use OS X utility designed for reading and writing Windows disk volumes formatted using the NTFS file system is now available with direct download link for Macosx user only at 4MACSOFT. Tuxera NTFS 2016 Serial is a program that provides support for reading and writing of NTFS in Mac disks.

NTFS (Windows NTFileSystem) - the latest in a long line of minor, proprietary, non-portable, file system formats promulgated by a commercial software vendor based in the Pacific North West, USA. Closed technology.

NTFS Drivers

Драйверы NTFS доступные в Debian:

  • ntfs

    • Linux kernel NTFS driver, поддерживает доступ только для чтения.
    • Available in mainline kernels.

  • ntfs-3g

    • NTFS драйвер для FUSE, предоставляет доступы для чтения и записи.

    • Based on, and a major improvement to ntfsmount (see next item) and libntfs.

    • Available in the ntfs-3g package.

  • ntfsmount

    • Userspace NTFS driver via FUSE, provides read and write access.

    • Available in the ntfsprogs package.

Obsolete

  • Captive NTFS

    • Requires Wine and the Microsoft Windows ntfs.sys driver.

    • No longer maintained and not recommended for use.

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Usage Examples

mount

ntfs (man page):

ntfs-3g (man page):

ntfsmount (man page):

/etc/fstab

ntfs and ntfs-3g

The original tool used to mount ntfs partitions was /sbin/mount.ntfs. However, in Debian Squeeze this is symlink-ed to /sbin/mount.ntfs-3g, which is in turn symlink-ed to /usr/bin/ntfs-3g. So an entry in /etc/fstab that mounts an NTFS partition can specify either ntfs or ntfs-3g as its filesystem type, and both of these specifications will use the new NTFS filesystem driver ntfs-3g to mount the partition. ntfs-3g might be the preferred choice as it provides both read and write access to NTFS partitions.

Permissions for mounted partition(s)

For filesystem access by other users and groups on the system, refer to the mount(8) and fstab(5) man pages; note the umask, dmask, fmask, uid and gid options.

ntfs (man page):

ntfs-3g (man page):

ntfsmount (man page, see also Debian bug 508982):

External Links

  • http://www.linux-ntfs.org/doku.php?id=kernel_driver - NTFS kernel driver (Linux-NTFS Wiki)

  • http://www.tuxera.com/community/ntfs-3g-download/ - NTFS-3G homepage;

    • http://www.tuxera.com/community/ntfs-3g-faq/#unprivileged - 'Why can't unprivileged users mount block devices?' (NTFS-3G Support: Questions & Answers)

  • http://www.linux-ntfs.org/doku.php?id=ntfsmount - ntfsmount (Linux-NTFS Wiki)

  • http://www.jankratochvil.net/project/captive/ - Captive NTFS homepage

NTFS-3G
Developer(s)Tuxera Inc.
Stable release
Written inC
Operating systemUnix-like, Haiku
Type
LicenseDual-licensed GNU GPL/Proprietary[citation needed]
Websitewww.tuxera.com/community/open-source-ntfs-3g/

NTFS-3G is an open-sourcecross-platform implementation of the Microsoft WindowsNTFS file system with read-write support. NTFS-3G often uses the FUSEfile system interface, so it can run unmodified on many different operating systems. It is runnable on Linux, FreeBSD, NetBSD, OpenSolaris, illumos, BeOS, QNX, WinCE, Nucleus, VxWorks, Haiku,[1]MorphOS, Minix, macOS[2] and OpenBSD.[3][4] It is licensed under the GNU General Public License. It is a partial fork of ntfsprogs and is under active maintenance and development.

NTFS-3G was introduced by one of the senior Linux NTFS developers, Szabolcs Szakacsits, in July 2006. The first stable version was released on 2007-02-21 as version 1.0. The developers of NTFS-3G later formed a company, Tuxera Inc., to further develop the code. NTFS-3G is now the free 'community edition',[1][failed verification] while Tuxera NTFS is the proprietary version.

Features[edit]

NTFS-3G supports all operations for writing files: files of any size can be created, modified, renamed, moved, or deleted on NTFS partitions. Transparent compression is supported, as well as system-level encryption.[5] Support to modify access control lists and permissions is available.[6] NTFS partitions are mounted using the Filesystem in Userspace (FUSE) interface. NTFS-3G supports hard links, symbolic links, and junctions. With the help of NTFS reparse point plugins, it can be made to read chunk-deduplicated files, system-compressed files, and OneDrive files.[7] NTFS-3G provides complete support and translation of NTFS access control list (ACL) to POSIX ACL permissions. A 'usermap' utility is included to record the mapping from UIDs to Windows NT SIDs.

NTFS-3G supports partial NTFS journaling, so if an unexpected computer failure leaves the file system in an inconsistent state, the volume can be repaired. As of 2009, a volume having an unclean journal file is recovered and mounted by default. The ‘norecover’ mount option can be used to disable this behavior.[8]

Performance[edit]

Benchmarks show that the driver's performance via FUSE is comparable to that of other filesystems' drivers in-kernel,[9] provided that the CPU is powerful enough. On embedded or old systems, the high processor usage can severely limit performance. Tuxera sells optimized versions of the driver that claims to have improved CPU utilization for embedded systems and MacOS.[10]

The slowness of NTFS-3G (and FUSE in general) on embedded systems is attributed to the frequent context switching associated with FUSE calls. Some open-source methods provided to reduce this overhead include:[11]

  • The underlying FUSE layer has an option called big_writes to use larger blocks when writing. Using a larger block means fewer context switches. This is in fact a solution recommended by Tuxera.[12] A patch is available to use an even larger block.[13]
  • There is also a Linux kernel option called lazytime to reduce the writes on file access.
  • Synology Inc. uses a modified NTFS-3G on their NAS systems. It replaces the ntfs-3g inode caching CACHE_NIDATA_SIZE with a different mechanism with unsure benefit. (It also includes an alternative Security Identifier translation for the NAS.)

History[edit]

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  • NTFS-3G forked from the Linux-NTFS project on October 31, 2006.
  • On February 21, 2007, Szabolcs Szakacsits announced 'the release of the first open source, freely available, stable read/write NTFS driver, NTFS-3G 1.0.'
  • On October 5, 2009, NTFS-3G for Mac was brought under the auspices of Tuxera Ltd. and a proprietary version called Tuxera NTFS for Mac was made available.[14]
  • On April 12, 2011, it was announced that Ntfsprogs project was merged with NTFS-3G.[15]
  • NTFS-3g added TRIM support in version 2015.3.14.

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See also[edit]

Tuxera Ntfs Wiki For Mac

References[edit]

Tuxera Ntfs Wikipedia

  1. ^ abc'STABLE Version 2017.3.23 (March 28, 2017)'. Tuxera. Tuxera. 2017-03-23. Retrieved 2017-03-23.
  2. ^NTFS-3G for Mac OS X ('Catacombae')
  3. ^'OpenBSD adds fuse(4) support for adding file systems in userland'. OpenBSD Journal. 2013-11-08. Retrieved 2013-11-08.
  4. ^'ntfs_3g-2014.2.15 – FUSE NTFS driver with read/write support'. OpenBSD ports. 2014-01-05. Retrieved 2015-02-14.
  5. ^NTFS-3G FAQ
  6. ^NTFS-3G: NTFS Driver with Ownership and permissions
  7. ^André, Jean-Pierre (March 1, 2019). 'NTFS-3G: Junction Points, Symbolic Links and Reparse Points'. jp-andre.pagesperso-orange.fr.
  8. ^NTFS-3G 2009.2.1 changelog
  9. ^Comparing NTFS-3G to ZFS-FUSE for FUSE Performance
  10. ^Performance at Tuxera
  11. ^Gothe, Markus. 'On Linux NTFS Performance'. Retrieved 3 October 2019.
  12. ^'NTFS-3G Questions'. Tuxera. Workaround: using the mount option “big_writes” generally reduces the CPU usage, provided the software requesting the writes supports big blocks.
  13. ^Wang, M. 'linux - Disadvantages of ntfs-3g `big_writes` mount option'. Unix & Linux Stack Exchange. Retrieved 3 October 2019.
  14. ^NTFS-3G for Mac OS X is now Tuxera NTFS for Mac
  15. ^Release: NTFS-3G + NTFSPROGS 2011.4.12

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External links[edit]

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