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<title>Veritas File System</title>

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</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with the file systems <a href="XFS" title="XFS">XFS</a> and <a href="JFS_(file_system)" title="JFS (file system)">JFS</a>.</div>

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</style><table class="infobox vevent"><caption class="infobox-title summary">VERITAS File System</caption><tbody><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Full name</th><td class="infobox-data">VERITAS File System</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Introduced</th><td class="infobox-data">1991<span style="display:none"> (<span class="bday dtstart published updated">1991</span>)</span></td></tr><tr><th colspan="2" class="infobox-header">Structures</th></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Directory contents</th><td class="infobox-data">extensible hash</td></tr><tr><th colspan="2" class="infobox-header">Limits</th></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Max volume size</th><td class="infobox-data"><span class="nowrap">2<sup>77</sup> bytes</span> (128 ZiB)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Max file size</th><td class="infobox-data"><span class="nowrap">2<sup>63</sup> bytes</span> (8 EiB)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Max filename length</th><td class="infobox-data">256 bytes</td></tr><tr><th colspan="2" class="infobox-header">Features</th></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Fork_(file_system)" title="Fork (file system)">Forks</a></th><td class="infobox-data">yes</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Attributes</th><td class="infobox-data"><a href="Extended_file_attributes" title="Extended file attributes">Extended file attributes</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="File_system_permissions" class="mw-redirect" title="File system permissions">File system<br>permissions</a></th><td class="infobox-data">Unix permissions, <a href="Access_control_list" class="mw-redirect" title="Access control list">ACL</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Transparent<br>compression</th><td class="infobox-data">No</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Filesystem-level_encryption" title="Filesystem-level encryption">Transparent<br>encryption</a></th><td class="infobox-data">No</td></tr><tr><th colspan="2" class="infobox-header">Other</th></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Supported<br><a href="Operating_system" title="Operating system">operating systems</a></th><td class="infobox-data"><a href="Linux" title="Linux">Linux</a>, <a href="Solaris_(operating_system)" class="mw-redirect" title="Solaris (operating system)">Solaris</a>, <a href="HP-UX" title="HP-UX">HP-UX</a>, <a href="IBM_AIX" title="IBM AIX">AIX</a>, <a href="SINIX" title="SINIX">SINIX</a>, <a href="UnixWare" title="UnixWare">UnixWare</a></td></tr></tbody></table>

<p>The <b>VERITAS File System</b> (or <b>VxFS</b>; called <b>JFS</b> and <b>OnlineJFS</b> in <a href="HP-UX" title="HP-UX">HP-UX</a>) is an <a href="Extent_(file_systems)" title="Extent (file systems)">extent</a>-based <a href="File_system" title="File system">file system</a>. It was originally developed by <a href="VERITAS_Software" class="mw-redirect" title="VERITAS Software">VERITAS Software</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Through an <a href="Original_equipment_manufacturer" title="Original equipment manufacturer">OEM</a> agreement, VxFS is used as the primary filesystem of the <a href="HP-UX" title="HP-UX">HP-UX</a> <a href="Operating_system" title="Operating system">operating system</a>. With on-line <a href="Defragmentation" title="Defragmentation">defragmentation</a> and resize support turned on via license, it is known as <i>OnlineJFS</i>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

It is also supported on <a href="IBM_AIX" title="IBM AIX">AIX</a>, <a href="Linux" title="Linux">Linux</a>, <a href="Solaris_(operating_system)" class="mw-redirect" title="Solaris (operating system)">Solaris</a>, <a href="OpenSolaris" title="OpenSolaris">OpenSolaris</a>, <a href="SINIX" title="SINIX">SINIX</a>/Reliant UNIX, <a href="UnixWare" title="UnixWare">UnixWare</a> and <a href="OpenServer" title="OpenServer">SCO OpenServer</a>. VxFS was originally developed for <a href="AT%26T_Corporation" title="AT&T Corporation">AT&T</a>'s <a href="Unix_System_Laboratories" title="Unix System Laboratories">Unix System Laboratories</a>. VxFS is packaged as a part of the <a href="Veritas_Storage_Foundation" title="Veritas Storage Foundation">Veritas Storage Foundation</a> (which also includes <a href="Veritas_Volume_Manager" title="Veritas Volume Manager">Veritas Volume Manager</a>).

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<div class="mw-heading mw-heading2"><h2 id="History">History</h2></div>

<p>According to the vendor, it was the first commercial <a href="Journaling_file_system" title="Journaling file system">journaling file system</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

That claim can be taken in two ways, i.e., the first implementation of a journaling file system in a commercial context, or the first file system available as an unbundled product.

</p><p>Dan Koren is cited as one of the original developers of VxFS.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>

He notes in a mailing list that they "finished release 1.0 one year or so later" after starting development of VxFS under a contract with <a href="AT%26T_Corporation" title="AT&T Corporation">AT&T Corporation</a> in 1990.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Other sources agree that the product was first released in 1991.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>

</p><p>As the internet was not widely available in the early 1990s, getting a new file system deployed for Unix-like operating systems was more difficult, so the one- to two-year delay in the release and commercialization of this file system was not unusual.

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<div class="mw-heading mw-heading2"><h2 id="Version_history">Version history</h2></div>

<p>The on-disk layout of VxFS is versioned and upgradeable while the file system is mounted. This file system has gone through ten versions.

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<ul><li>Version 2 added support for filesets, dynamic inode allocation and ACLs. Layouts 1–3 stopped being supported in VxFS 4.0.</li>

<li>Version 4 added support for storage checkpoints and for <a href="Veritas_Cluster_File_System" title="Veritas Cluster File System">Veritas Cluster File System</a>. Version 4 was released in VxFS 3.2.1. Layout version 4 is no longer supported under VxFS 5.1.<sup id="cite_ref-VxFS-5.1_8-0" class="reference"><a href="#cite_note-VxFS-5.1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></li>

<li>Version 5 started support for file systems up to 32 <a href="Terabyte" class="mw-redirect" title="Terabyte">terabytes</a> (<span class="nowrap">2<sup>45</sup> bytes</span>) in size. Individual files can be up to 2 terabytes in size. Version 5 was introduced in VxFS 3.5 and is no longer supported under VxFS 5.1.<sup id="cite_ref-VxFS-5.1_8-1" class="reference"><a href="#cite_note-VxFS-5.1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></li>

<li>Version 6 added support for file systems and files up to 8 <a href="Exabyte" class="mw-redirect" title="Exabyte">exabytes</a> (<span class="nowrap">2<sup>63</sup> bytes</span>) in size. Version 6 also introduced support for <a href="Fork_(filesystem)" class="mw-redirect" title="Fork (filesystem)">named streams/resource forks</a>, for multiple underlying volumes, and for <a href="File_Change_Log" class="mw-redirect" title="File Change Log">file change logs</a>. Version 6 was introduced in VxFS 4.0.</li>

<li>Version 7 extends support for multiple volumes to permit Dynamic Storage Tiering. Dynamic Storage Tiering allows root users to move files among different volumes, allocate files to different volumes at file creation time based on policy, and independently recover volumes, without altering the namespace of the file system. Version 7 was introduced in VxFS 5.0.</li>

<li>Version 8 enables support for file-level snapshots and shared extents. Version 8 was introduced in VxFS 5.1.</li>

<li>Version 9 enables support for file compression, deduplication, and partition directories. Version 9 was introduced in VxFS 6.0.</li>

<li>Version 10 enables support for maxlink, which permits a directory to contain more than 64K subdirectories. Version 10 was introduced in VxFS 6.1.</li></ul>

<div class="mw-heading mw-heading2"><h2 id="Parallel_access_mode">Parallel access mode</h2></div>

<p>VxFS file system can run in <i>single instance mode</i> or in a <i>parallel access / cluster mode</i>. The parallel mode allows for multiple servers (also known as cluster nodes) to simultaneously access the same file system. When run in this mode, VxFS is referred to as <a href="Veritas_Cluster_File_System" title="Veritas Cluster File System">Veritas Cluster File System</a>.

</p><p>The <b>Cluster File System</b> provides cache coherency and <a href="POSIX" title="POSIX">POSIX</a> compliance across nodes, so that data changes are atomically seen by all cluster nodes simultaneously. Because Cluster File System shares the same binaries and same on-disk layout as single instance VxFS, moving between cluster and single instance mode is straightforward.

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<ul><li><a href="Comparison_of_file_systems" title="Comparison of file systems">Comparison of file systems</a></li>

<li><a href="Symantec_Operations_Readiness_Tools" title="Symantec Operations Readiness Tools">Symantec Operations Readiness Tools</a> (SORT)</li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080309193205/http://www.patentstorm.us/patents/6871271.html">"Incrementally restoring a mass storage device to a prior state"</a>. 2005-03-22. Archived from <a rel="nofollow" class="external text" href="http://www.patentstorm.us/patents/6871271.html">the original</a> on 2008-03-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFDonna_Yobs2000" class="citation web cs1">Donna Yobs (2000-04-10). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080309165600/http://mailman.eng.auburn.edu/pipermail/veritas-vx/2000-April/000163.html">"Post in the veritas-vx mailing list explaining the differences between JFS and OJFS"</a>. Archived from <a rel="nofollow" class="external text" href="http://mailman.eng.auburn.edu/pipermail/veritas-vx/2000-April/000163.html">the original</a> on 2008-03-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20031025011156/http://ftp.support.veritas.com/pub/support/products/FileSystem_UNIX/253148.pdf">"VERITAS Foundation Suite and Foundation Suite HA 3.5"</a> <span class="cs1-format">(PDF)</span>. VERITAS. Archived from <a rel="nofollow" class="external text" href="http://ftp.support.veritas.com/pub/support/products/FileSystem_UNIX/253148.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2003-10-25<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.linux-kongress.org/1999/abstracts.html">"6th International Linux Kongress"</a>. 1999-09-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><cite id="CITEREFDan_Koren1999" class="citation web cs1">Dan Koren (1999-06-01). <a rel="nofollow" class="external text" href="https://lkml.org/lkml/1999/6/1/31">"Re: XFS and journalling filesystems"</a>. LKML.org<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080309233339/http://www.byteandswitch.com/document.asp?doc_id=24108&page_number=3">"Next-Gen File Systems — File under 'futuristic': An overview of the technologies and players — The Heavy Hitters: Veritas"</a>. Byte and Switch. 2002-11-14. Archived from <a rel="nofollow" class="external text" href="http://www.byteandswitch.com/document.asp?doc_id=24108&page_number=3">the original</a> on 2008-03-09<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080311020055/http://issj.sys-con.com/read/46369.htm">"VERITAS Celebrates 15 Years - Next Big Focus: Grid Computing"</a>. SYS-CON. 2004-09-14. Archived from <a rel="nofollow" class="external text" href="http://issj.sys-con.com/read/46369.htm">the original</a> on 2008-03-11<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-11-21</span></span>.</cite></span>

</li>

<li id="cite_note-VxFS-5.1-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-VxFS-5.1_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-VxFS-5.1_8-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110716174201/http://seer.entsupport.symantec.com/docs/339064.htm">"Veritas File Systems with Disk Layout Version 4 or Version 5 Cannot be Mounted or Upgraded with Veritas File System Release 5.1"</a>. Archived from <a rel="nofollow" class="external text" href="http://seer.entsupport.symantec.com/docs/339064.htm">the original</a> on July 16, 2011.</cite></span>

</li>

</ol></div></div>

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</style></div><div role="navigation" class="navbox" aria-labelledby="Gen_Digital369" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><style data-mw-deduplicate="TemplateStyles:r1239400231">

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</style><div id="Gen_Digital369" style="font-size:114%;margin:0 4em"><a href="Gen_Digital" title="Gen Digital">Gen Digital</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Gary_Hendrix" title="Gary Hendrix">Gary Hendrix</a> (founder)</li>

<li><a href="Gordon_Eubanks" title="Gordon Eubanks">Gordon Eubanks</a> (1990s CEO)</li>

<li><a href="Vincent_Pilette" title="Vincent Pilette">Vincent Pilette</a> (current CEO)</li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Products</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Avast" title="Avast">Avast</a>

<ul><li><a href="Avast_Antivirus" title="Avast Antivirus">Avast Antivirus</a></li>

<li><a href="Avast_Secure_Browser" title="Avast Secure Browser">Avast Secure Browser</a></li>

<li><a href="Avast_SecureLine_VPN" title="Avast SecureLine VPN">Avast SecureLine VPN</a></li></ul></li>

<ul><li><a href="AVG_AntiVirus" title="AVG AntiVirus">AVG AntiVirus</a></li>

<li><a href="AVG_PC_TuneUp" title="AVG PC TuneUp">AVG PC TuneUp</a></li></ul></li>

<li><a href="Avira" title="Avira">Avira</a></li>

<li><a href="CCleaner" title="CCleaner">CCleaner</a>

<ul><li><a href="Defraggler" title="Defraggler">Defraggler</a></li>

<li><a href="Recuva" title="Recuva">Recuva</a></li>

<li><a href="Speccy" title="Speccy">Speccy</a></li></ul></li>

<li><a href="LifeLock" title="LifeLock">LifeLock</a></li>

<li><a href="Norton_(software)" title="Norton (software)">Norton</a>

<ul><li><a href="Norton_360" title="Norton 360">Norton 360</a></li>

<li><a href="Norton_AntiVirus" title="Norton AntiVirus">Norton AntiVirus</a></li>

<li><a href="Norton_Family" title="Norton Family">Norton Family</a></li>

<li><a href="Norton_Insight" title="Norton Insight">Norton Insight</a></li>

<li><a href="Norton_LiveUpdate" title="Norton LiveUpdate">Norton LiveUpdate</a></li>

<li><a href="Norton_Power_Eraser" title="Norton Power Eraser">Norton Power Eraser</a></li>

<li><a href="Norton_Safe_Web" title="Norton Safe Web">Norton Safe Web</a></li>

<li><a href="Norton_System_Insight" title="Norton System Insight">Norton System Insight</a></li></ul></li>

<li><a href="SONAR_(Symantec)" title="SONAR (Symantec)">SONAR</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Spin off</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Backup_Exec" title="Backup Exec">Backup Exec</a></li>

<li><a href="Enterprise_Vault" title="Enterprise Vault">Enterprise Vault</a></li>

<li><a href="Ghost_(disk_utility)#Enterprise_line" title="Ghost (disk utility)">Ghost Solution Suite (enterprise)</a></li>

<li><a href="Symantec_Endpoint_Protection" title="Symantec Endpoint Protection">Symantec Endpoint Protection</a></li>

<li><a href="Veritas_Storage_Foundation" title="Veritas Storage Foundation">Veritas Storage Foundation</a></li>

<li><a href="Veritas_Volume_Manager" title="Veritas Volume Manager">Veritas Volume Manager</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Discontinued</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Drive_Image_(software)" title="Drive Image (software)">Drive Image</a></li>

<li><a href="Ghost_(disk_utility)#Consumer_line" title="Ghost (disk utility)">Norton Ghost</a></li>

<li><a href="GoBack" title="GoBack">GoBack</a></li>

<li><a href="GrandView_(software)" title="GrandView (software)">GrandView</a></li>

<li><a href="Norton_360_(2006%E2%80%932014)" class="mw-redirect" title="Norton 360 (2006–2014)">Norton 360</a></li>

<li><a href="Norton_AntiBot" title="Norton AntiBot">Norton AntiBot</a></li>

<li><a href="Norton_CleanSweep" title="Norton CleanSweep">Norton CleanSweep</a></li>

<li><a href="Norton_Commander" title="Norton Commander">Norton Commander</a></li>

<li><a href="Norton_ConnectSafe" title="Norton ConnectSafe">Norton ConnectSafe</a></li>

<li><a href="Norton_Internet_Security" title="Norton Internet Security">Norton Internet Security</a></li>

<li><a href="Norton_PC_Checkup" title="Norton PC Checkup">Norton PC Checkup</a></li>

<li><a href="Norton_Personal_Firewall" title="Norton Personal Firewall">Norton Personal Firewall</a></li>

<li><a href="Norton_Security" title="Norton Security">Norton Security</a></li>

<li><a href="Norton_SystemWorks" title="Norton SystemWorks">Norton SystemWorks</a></li>

<li><a href="Norton_Utilities" title="Norton Utilities">Norton Utilities</a></li>

<li><a href="PartitionMagic" title="PartitionMagic">PartitionMagic</a></li>

<li><a href="PcAnywhere" title="PcAnywhere">pcAnywhere</a></li>

<li><a href="THINK_C" title="THINK C">THINK C</a></li>

<li><a href="THINK_Reference" class="mw-redirect" title="THINK Reference">THINK Reference</a></li>

<li><a href="Breakthrough_Software" title="Breakthrough Software">TimeLine</a></li>

<li><a href="Visual_Caf%C3%A9" title="Visual Café">Visual Café</a></li>

<li><a href="WinFax" title="WinFax">WinFax</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="List_of_mergers_and_acquisitions_by_Gen_Digital" title="List of mergers and acquisitions by Gen Digital">Acquisitions <br>and mergers</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="%40stake" title="@stake">@stake</a></li>

<li><a href="Altiris" title="Altiris">Altiris</a></li>

<li><a href="Avast" title="Avast">Avast</a>

<ul><li><a href="AVG_Technologies" title="AVG Technologies">AVG Technologies</a></li>

<li><a href="Piriform_Software" title="Piriform Software">Piriform Software</a></li></ul></li>

<li><a href="Avira" title="Avira">Avira</a></li>

<li><a href="Binary_Research" title="Binary Research">Binary Research</a></li>

<li><a href="BindView" title="BindView">BindView</a></li>

<li><a href="Blue_Coat_Systems" title="Blue Coat Systems">Blue Coat Systems</a></li>

<li><a href="Breakthrough_Software" title="Breakthrough Software">Breakthrough Software</a></li>

<li><a href="Brightmail" title="Brightmail">Brightmail</a></li>

<li><a href="Central_Point_Software" title="Central Point Software">Central Point Software</a></li>

<li><a href="Delrina" title="Delrina">Delrina</a></li>

<li><a href="Dynamic_Microprocessor_Associates" title="Dynamic Microprocessor Associates">Dynamic Microprocessor Associates</a></li>

<li><a href="Fast_Track%2C_Inc." title="Fast Track, Inc.">Fast Track</a></li>

<li><a href="Fifth_Generation_Systems" title="Fifth Generation Systems">Fifth Generation Systems</a></li>

<li><a href="Leonard_Development_Group" title="Leonard Development Group">Leonard Development Group</a></li>

<li><a href="LifeLock" title="LifeLock">LifeLock</a></li>

<li><a href="LIRIC_Associates" title="LIRIC Associates">LIRIC Associates</a></li>

<li><a href="ON_Technology" title="ON Technology">ON Technology</a></li>

<li><a href="Peter_Norton_Computing" title="Peter Norton Computing">Peter Norton Computing</a></li>

<li><a href="PowerQuest" title="PowerQuest">PowerQuest</a></li>

<li><a href="Quarterdeck_Office_Systems" title="Quarterdeck Office Systems">Quarterdeck</a></li>

<li><a href="Quest_Development" title="Quest Development">Quest Development</a></li>

<li><a href="Recourse_Technologies" title="Recourse Technologies">Recourse Technologies</a></li>

<li><a href="Revivio" title="Revivio">Revivio</a></li>

<li><a href="Riptech" title="Riptech">Riptech</a></li>

<li><a href="SecurityFocus" title="SecurityFocus">SecurityFocus</a></li>

<li><a href="TurnTide" title="TurnTide">TurnTide</a></li>

<li><a href="Veritas_Technologies" title="Veritas Technologies">Veritas Software</a>†</li>

<li><a href="Whitewater_Group" title="Whitewater Group">Whitewater Group</a></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>† Demerged in 2016

<ul><li><span class="noviewer" typeof="mw:File"><span title="Category"></span></span> <b>Category</b></li>

<li><span class="noviewer" typeof="mw:File"><span title="Commons page"></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Symantec" class="extiw external" title="commons:Category:Symantec"><b>Commons</b></a></li></ul></div></td></tr></tbody></table></div>

<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="File_systems283" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="File_systems283" style="font-size:114%;margin:0 4em"><a href="File_system" title="File system">File systems</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div>

<ul><li><a href="Comparison_of_file_systems" title="Comparison of file systems">Comparison of file systems</a>

<ul><li><a href="Comparison_of_distributed_file_systems" title="Comparison of distributed file systems">distributed</a></li></ul></li>

<li><a href="Unix_filesystem" title="Unix filesystem">Unix filesystem</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Disk and<br>non-rotating</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="AdvFS" title="AdvFS">AdvFS</a></li>

<li><a href="Amiga_Fast_File_System" title="Amiga Fast File System">Amiga FFS</a></li>

<li><a href="Amiga_Old_File_System" title="Amiga Old File System">Amiga OFS</a></li>

<li><a href="AtheOS_File_System" class="mw-redirect" title="AtheOS File System">AthFS</a></li>

<li><a href="Bcachefs" title="Bcachefs">bcachefs</a></li>

<li>BFS

<ul><li><a href="Be_File_System" title="Be File System">Be File System</a></li>

<li><a href="Boot_File_System" title="Boot File System">Boot File System</a></li>

<li>Byte File System (<a href="Z/VM" title="Z/VM">z/VM</a>)</li></ul></li>

<li><a href="Btrfs" title="Btrfs">Btrfs</a></li>

<li>EFS

<ul><li><a href="Encrypting_File_System" title="Encrypting File System">Encrypting File System</a></li>

<li><a href="Extent_File_System" title="Extent File System">Extent File System</a></li></ul></li>

<li><a href="Episode_filesystem" title="Episode filesystem">Episode</a></li>

<ul><li><a href="ExFAT" title="ExFAT">exFAT</a></li></ul></li>

<li><a href="Files-11" title="Files-11">Files-11</a></li>

<li><a href="Fossil_(file_system)" title="Fossil (file system)">Fossil</a></li>

<li><a href="HAMMER_(file_system)" title="HAMMER (file system)">HAMMER</a>

<ul><li><a href="HAMMER2" title="HAMMER2">HAMMER2</a></li></ul></li>

<li><a href="Hierarchical_File_System_(Apple)" title="Hierarchical File System (Apple)">HFS</a> (<a href="Classic_Mac_OS" title="Classic Mac OS">Classic Mac OS</a>)</li>

<li>MFS

<ul><li><a href="Macintosh_File_System" title="Macintosh File System">Macintosh File System</a></li>

<li><a href="TiVo_Media_File_System" title="TiVo Media File System">TiVo Media File System</a></li></ul></li>

<li><a href="MINIX_file_system" title="MINIX file system">MINIX</a></li>

<li><a href="NetWare_File_System" title="NetWare File System">NetWare File System</a></li>

<li><a href="NILFS" title="NILFS">NILFS</a>

<ul><li><a href="NILFS" title="NILFS">NILFS2</a></li></ul></li>

<li><a href="OneFS_distributed_file_system" title="OneFS distributed file system">OneFS</a></li>

<li><a href="OpenZFS" title="OpenZFS">OpenZFS</a></li>

<li><a href="ReiserFS" title="ReiserFS">ReiserFS</a>

<ul><li><a href="Reiser4" title="Reiser4">Reiser4</a></li></ul></li>

<li><a href="Datalight#Reliance_family" title="Datalight">Reliance</a></li>

<li><a href="Datalight#Reliance_Nitro" title="Datalight">Reliance Nitro</a></li>

<li>SFS

<ul><li>Shared File System (<a href="VM_(operating_system)" title="VM (operating system)">VM</a>)</li>

<li><a href="Smart_File_System" title="Smart File System">Smart File System</a></li></ul></li>

<li><a href="Soup_(Apple)" title="Soup (Apple)">Soup (Apple)</a></li>

<li><a href="UBIFS" title="UBIFS">UBIFS</a></li>

<ul><li><a href="Soft_updates" title="Soft updates">soft updates</a></li>

<li><a href="Write_Ahead_Physical_Block_Logging" title="Write Ahead Physical Block Logging">WAPBL</a></li></ul></li>

<li><a href="Xiafs" title="Xiafs">Xiafs</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Optical_disc" title="Optical disc">Optical disc</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Flash_memory" title="Flash memory">Flash memory</a> and <a href="Solid-state_drive" title="Solid-state drive">SSD</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="ExFAT" title="ExFAT">exFAT</a></li>

<li><a href="EROFS" title="EROFS">EROFS</a></li>

</div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="host-side_wear_leveling27" scope="row" class="navbox-group" style="width:1%">host-side <a href="Wear_leveling" title="Wear leveling">wear leveling</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="LogFS" title="LogFS">LogFS</a></li>

<li><a href="NILFS" title="NILFS">NILFS</a>

<ul><li><a href="NILFS" title="NILFS">NILFS2</a></li></ul></li>

<li><a href="YAFFS" title="YAFFS">YAFFS</a></li>

<li><a href="UBIFS" title="UBIFS">UBIFS</a></li></ul>

</div></td></tr></tbody></table><div>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Clustered_file_system#Distributed_file_systems" title="Clustered file system">Distributed parallel</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="BeeGFS" title="BeeGFS">BeeGFS</a></li>

<li><a href="Google_File_System" title="Google File System">Google File System</a></li>

<li><a href="OrangeFS" title="OrangeFS">OrangeFS</a></li>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Network-attached_storage" title="Network-attached storage">NAS</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Andrew_File_System" title="Andrew File System">AFS</a> (<a href="OpenAFS" title="OpenAFS">OpenAFS</a>)</li>

<li><a href="Google_File_System" title="Google File System">Google File System</a></li>

<li><a href="Lustre_(file_system)" title="Lustre (file system)">Lustre</a></li>

<li><a href="Elliptics" title="Elliptics">POHMELFS</a></li>

<li><a href="Apache_Hadoop" title="Apache Hadoop">Hadoop</a></li>

<li><a href="SSHFS" title="SSHFS">SSHFS</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Specialized</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Boot_File_System" title="Boot File System">Boot File System</a></li>

<li><a href="Compact_Disc_File_System" title="Compact Disc File System">Compact Disc File System</a></li>

<li><a href="Cramfs" title="Cramfs">cramfs</a></li>

<li><a href="Davfs2" title="Davfs2">Davfs2</a></li>

<li><a href="EROFS" title="EROFS">EROFS</a></li>

<li><a href="FTPFS" title="FTPFS">FTPFS</a></li>

<li><a href="SquashFS" title="SquashFS">SquashFS</a></li>

<li><a href="FAT_filesystem_and_Linux" title="FAT filesystem and Linux">UMSDOS</a></li>

<li><a href="OverlayFS" title="OverlayFS">OverlayFS</a></li>

<li><a href="UnionFS" title="UnionFS">UnionFS</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Pseudo</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Configfs" title="Configfs">configfs</a></li>

<li><a href="Device_file" title="Device file">devfs</a></li>

<li><a href="Debugfs" title="Debugfs">debugfs</a></li>

<li><a href="Kernfs_(BSD)" title="Kernfs (BSD)">kernfs</a></li>

<li><a href="Procfs" title="Procfs">procfs</a></li>

<li>specfs</li>

<li><a href="Sysfs" title="Sysfs">sysfs</a></li>

<li><a href="Tmpfs" title="Tmpfs">tmpfs</a></li>

<li><a href="WinFS" title="WinFS">WinFS</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Filesystem-level_encryption" title="Filesystem-level encryption">Encrypted</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="ECryptfs" title="ECryptfs">eCryptfs</a></li>

<li><a href="EncFS" title="EncFS">EncFS</a></li>

<li><a href="Rubberhose_(file_system)" class="mw-redirect" title="Rubberhose (file system)">Rubberhose</a></li>

<li><a href="SSHFS" title="SSHFS">SSHFS</a></li>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Types</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Clustered_file_system" title="Clustered file system">Clustered</a>

<ul><li><a href="Global_file_system" title="Global file system">Global</a></li>

<li><a href="Self-certifying_File_System" title="Self-certifying File System">Self-certifying</a></li></ul></li>

<li><a href="Flash_file_system" title="Flash file system">Flash</a></li>

<li><a href="Journaling_file_system" title="Journaling file system">Journaling</a></li>

<li><a href="Log-structured_file_system" title="Log-structured file system">Log-structured</a></li>

<li><a href="Object_storage" title="Object storage">Object</a></li>

<li><a href="Record-oriented_filesystem" title="Record-oriented filesystem">Record-oriented</a></li>

<li><a href="Semantic_file_system" title="Semantic file system">Semantic</a></li>

<li><a href="Steganographic_file_system" title="Steganographic file system">Steganographic</a></li>

<li><a href="Synthetic_file_system" title="Synthetic file system">Synthetic</a></li>

<li><a href="Versioning_file_system" title="Versioning file system">Versioning</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Features</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Case_preservation" title="Case preservation">Case preservation</a></li>

<li><a href="Copy-on-write" title="Copy-on-write">Copy-on-write</a></li>

<li><a href="Data_deduplication" title="Data deduplication">Data deduplication</a></li>

<li><a href="Data_scrubbing" title="Data scrubbing">Data scrubbing</a></li>

<li><a href="Execute_in_place" title="Execute in place">Execute in place</a></li>

<li><a href="Extent_(file_systems)" title="Extent (file systems)">Extent</a></li>

<li><a href="File_attribute" title="File attribute">File attribute</a>

<ul><li><a href="Extended_file_attributes" title="Extended file attributes">Extended file attributes</a></li></ul></li>

<li><a href="File_change_log" title="File change log">File change log</a></li>

<li><a href="Inode" title="Inode">Inode</a></li>

<li>Links

<li><a href="Symbolic_link" title="Symbolic link">Symbolic</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Computer_access_control" title="Computer access control">Access control</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Access-control_list" title="Access-control list">Access-control list</a></li>

<li><a href="Filesystem-level_encryption" title="Filesystem-level encryption">Filesystem-level encryption</a></li>

<li><a href="File-system_permissions" title="File-system permissions">Permissions</a>

<ul><li><a href="Chmod" title="Chmod">Modes</a></li>

<li><a href="Sticky_bit" title="Sticky bit">Sticky bit</a></li></ul></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Interface_(computing)" title="Interface (computing)">Interfaces</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="File_manager" title="File manager">File manager</a></li>

<li><a href="File_system_API" title="File system API">File system API</a>

<ul><li><a href="Installable_File_System" title="Installable File System">Installable File System</a></li></ul></li>

<li><a href="Virtual_file_system" title="Virtual file system">Virtual file system</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="List_of_file_systems" title="List of file systems">Lists</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="List_of_cryptographic_file_systems" title="List of cryptographic file systems">Cryptographic</a></li>

<li><a href="List_of_default_file_systems" title="List of default file systems">Default</a></li>

<li><a href="List_of_log-structured_file_systems" title="List of log-structured file systems">Log-structured</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Layouts</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Master_Boot_Record" class="mw-redirect" title="Master Boot Record">Master Boot Record</a></li>

<li><a href="GUID_Partition_Table" title="GUID Partition Table">GUID Partition Table</a></li>

<li><a href="Apple_Partition_Map" title="Apple Partition Map">Apple Partition Map</a></li></ul>

</div></td></tr></tbody></table></div>

<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Hewlett-Packard_software449" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><div id="Hewlett-Packard_software449" style="font-size:114%;margin:0 4em"><a href="Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a> software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Applications and utilities</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="HP_Application_Security_Center" title="HP Application Security Center">Application Security Center</a></li>

<li><a href="HP_Business_Service_Automation" title="HP Business Service Automation">Business Service Automation</a></li>

<li><a href="HP_Business_Service_Management" title="HP Business Service Management">Business Service Management</a></li>

<li><a href="HP_Client_Automation_Software" title="HP Client Automation Software">Client Automation Software</a></li>

<li><a href="HP_Cloud_Service_Automation_Software" title="HP Cloud Service Automation Software">Cloud Service Automation Software</a></li>

<li><a href="Taligent" title="Taligent">CommonPoint</a>†</li>

<li><a href="Micro_Focus_Enterprise_Security_Products" title="Micro Focus Enterprise Security Products">Enterprise Security Products</a>†</li>

<li><a href="Iconv" title="Iconv">iconv</a></li>

<li><a href="HP_Information_Management_Software" title="HP Information Management Software">Information Management Software</a>†</li>

<li><a href="HP_Integrity_Virtual_Machines" title="HP Integrity Virtual Machines">Integrity Virtual Machines</a></li>

<li><a href="HP_IT_Management_Software" title="HP IT Management Software">IT Management Software</a></li>

<li><a href="HP_Linux_Imaging_and_Printing" title="HP Linux Imaging and Printing">Linux Imaging and Printing</a>*</li>

<li><a href="Mscape" title="Mscape">mscape</a></li>

<li><a href="HP_Network_Management_Center" title="HP Network Management Center">Network Management Center</a>†</li>

<li><a href="HP_Open_Extensibility_Platform" title="HP Open Extensibility Platform">Open Extensibility Platform</a></li>

<li><a href="HP_OpenMail" title="HP OpenMail">OpenMail</a></li>

<li><a href="HP_OpenView" title="HP OpenView">OpenView</a>

<ul><li><a href="HP_OpenView_Storage_Area_Manager" title="HP OpenView Storage Area Manager">Storage Area Manager</a></li></ul></li>

<li><a href="OpenText_Quality_Center" title="OpenText Quality Center">OpenText Quality Center</a>†</li>

<li><a href="UFT_One" title="UFT One">QuickTest Professional</a>†</li>

<li><a href="HP_Release_Control" title="HP Release Control">Release Control</a></li>

<li><a href="Remote_Graphics_Software" title="Remote Graphics Software">Remote Graphics Software</a>*</li>

<li><a href="HPE_Service_Activator" title="HPE Service Activator">Service Activator</a>**</li>

<li><a href="HP_Service_Manager" title="HP Service Manager">Service Manager</a>†</li>

<li><a href="HP_Serviceguard" title="HP Serviceguard">Serviceguard</a></li>

<li><a href="OpenText_SiteScope" title="OpenText SiteScope">SiteScope</a>†</li>

<li><a href="Snapfish_Lab" title="Snapfish Lab">Snapfish Lab</a></li>

<li><a href="HPE_Systems_Insight_Manager" title="HPE Systems Insight Manager">Systems Insight Manager</a>**</li>

<li><a href="Tesseract_(software)" title="Tesseract (software)">Tesseract</a>†</li>

<li><a href="Visual_User_Environment" title="Visual User Environment">Visual User Environment</a></li>

<li><a href="HP_WinRunner" title="HP WinRunner">WinRunner</a></li></ul>

</div></td><td class="noviewer navbox-image" rowspan="5" style="width:1px;padding:0 0 0 2px"><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Database</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Enscribe" title="Enscribe">Enscribe</a>**</li>

<li><a href="NonStop_SQL" title="NonStop SQL">NonStop SQL</a>**</li>

<li><a href="UCMDB" title="UCMDB">UCMDB</a>†</li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">File systems and formats</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Hi_Performance_FileSystem" title="Hi Performance FileSystem">Hi Performance FileSystem</a>**</li>

<li><a href="System_Object_Model_(file_format)" title="System Object Model (file format)">System Object Model</a>**</li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Operating systems and environments</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Domain/OS" title="Domain/OS">Domain/OS</a></li>

<li><a href="HyperSpace_(software)" title="HyperSpace (software)">HyperSpace</a></li>

<li><a href="System_Manager_(HP_LX)" title="System Manager (HP LX)">HP LX System Manager</a></li>

<li><a href="NewWave" title="NewWave">NewWave</a></li>

<li><a href="NonStop_(server_computers)" title="NonStop (server computers)">NonStop OS</a>**</li>

<li><a href="OpenVMS" title="OpenVMS">OpenVMS</a>**</li>

<li><a href="QuickPlay" title="QuickPlay">QuickPlay</a></li>

<li><a href="Rocky_Mountain_BASIC" title="Rocky Mountain BASIC">Rocky Mountain BASIC</a></li>

<li><a href="HP_Time-Shared_BASIC" title="HP Time-Shared BASIC">Time-Shared BASIC</a></li>

<li><a href="WebOS" title="WebOS">webOS</a>†</li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Protocols and languages</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="HP_ePrint" title="HP ePrint">ePrint</a>*</li>

<li><a href="InkML" title="InkML">InkML</a></li>

<li><a href="PowerHouse_(programming_language)" title="PowerHouse (programming language)">PowerHouse</a>‡</li>

<li><a href="Printer_Command_Language" title="Printer Command Language">Printer Command Language</a>

<ul><li><a href="Hewlett-Packard_Raster_Transfer_Language" title="Hewlett-Packard Raster Transfer Language">Raster Transfer Language</a></li></ul></li>

<li><a href="Printer_Job_Language" title="Printer Job Language">Printer Job Language</a></li>

<li><a href="Systems_Programming_Language" title="Systems Programming Language">Systems Programming Language</a></li>

<li><a href="HP_Universal_Print_Driver" title="HP Universal Print Driver">Universal Print Driver</a>*</li></ul>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div>

<ul><li>Asterisk (*) denotes software continued by <a href="HP_Inc." title="HP Inc.">HP Inc.</a></li>

<li>Double asterisk (**) denotes software continued by <a href="Hewlett_Packard_Enterprise" title="Hewlett Packard Enterprise">Hewlett Packard Enterprise</a></li>

<li>Dagger (†) denotes software divested and sold off</li>

<li>Double dagger (‡) denotes third-party software</li></ul>

</div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-08-04" href="https://en.wikipedia.org/wiki/?title=Veritas_File_System&oldid=1304245940">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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