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Introduction About this Wiki VSI OpenVMS wiki is the world's biggest encyclopedia entirely dedicated to the OpenVMS operating system. The purpose of the project is to consolidate and organize information about this operating system and create an easily searcheable reference base to answer any questions about it. Ultimately, this encyclopedia should contain basic information on common features of OpenVMS and operations frequently performed by programmers and system managers using this system as well as links to the current documentation. The wiki model used to create this encyclopedia allows any registered user to write an article or suggest changes to an existing article, thus maximizing the number of contributions and maintaining the integrity and neutrality of the data. To date, our wiki has 982 articles. View the full list here or use the search box in the top right corner to search this wiki. Or, if you are feeling adventurous, visit a random page. About OpenVMS OpenVMS is an operating system created in 1977 by the Digital Equipment Corporation and still widely used by large companies in the military, healthcare, banking, telecommunications and other industries. It is primarily known for its security and unrivaled clustering capabilities. It currently supports VAX, Alpha, and Itanium architectures and is working on a port to x86.

Categories Architectures Lexical Functions Security User Management Volume Management System Files Disk Quota Password Startup Command Procedures Browse all articles

Article of the day VMS IDE Debugger VMS IDE uses Visual Studio Code built-in debugger and supports all of its features. Read more

Resources Wiki guidelines VMS Software Inc. OpenVMS Documentation

Did you know... that you could use angle brackets (<>) instead of square brackets ([]) in DCL directory specifications? that the maximum value of the LGI_HID_TIM parameter which specifies how long OpenVMS does not let intruders log in to the system is 1261440000 seconds, or 40 years? that a label name can contain a maximum of 255 characters?

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Please help this wiki become the most informative and reliable source of information on OpenVMS! To help the project, you can: write new articles expand and edit existing articles add links to dead end pages add pages to categories translate this wiki to your language and more. To get editing access to this wiki, log in by clicking the button above. If you don't have an account or see a registration link, please contact training@vmssoftware.com for a registration.

Write You can help the project by writing the following articles: Quota JOB_CONTROL SYSPRV INSTALL DECnet Phase IV‏‎ See all wanted pages

Add You can help the project by expanding the following articles: ‎INDEXF.SYS ‎SETPRV ‎ADDUSER.COM ‎BADLOG.SYS BADBLK.SYS See all short pages

Edit You can help the project by editing the following articles: Audit ACE Identifier ACE‏‎ ACE‏‎ BADBLK.SYS‏‎ Default directory‏‎ See all nonrevised pages

Categorize You can help the project by categorizing the following articles: $GETQUI output item codes ACE ACL ACP DATACHECK ACP SWAPFLGS See all uncategorized pages