Talk:High Performance File System

Computing Mid‑importance

	This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Microsoft Mid‑importance

	This article is within the scope of WikiProject Microsoft, a collaborative effort to improve the coverage of articles relating to Microsoft on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MicrosoftWikipedia:WikiProject MicrosoftTemplate:WikiProject MicrosoftMicrosoft articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Microsoft Windows: Computing Mid‑importance

	This article is within the scope of WikiProject Microsoft Windows, a collaborative effort to improve the coverage of Microsoft Windows on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Microsoft WindowsWikipedia:WikiProject Microsoft WindowsTemplate:WikiProject Microsoft WindowsMicrosoft Windows articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by WikiProject Computing.

Software: Computing Mid‑importance

	This article is within the scope of WikiProject Software, a collaborative effort to improve the coverage of software on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.SoftwareWikipedia:WikiProject SoftwareTemplate:WikiProject Softwaresoftware articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by WikiProject Computing.

What's "IBM" about it?

If this was, as indicated, developed primarily by Microsoft, why does the title say "IBM"? Or does "IBM" modify "OS/2"? At the time it was developed, OS/2 was a joint IBM/Microsoft product. Guy Harris 20:15, 19 November 2006 (UTC)[reply]

IBM rewrote the commonly used hpfs.ifs. The story I heard was that IBM and Microsoft decided to write a next generation hard disk driver and what they would do is each develop one interdependently and then compare the results. Anyways when the comparison was made Microsoft's version was faster and so was excepted. Afterwards when IBM examined the code they discovered that MS had cheated by using i386 assembler when the agreement called for the driver to be built in C and compiled for i286. Upshot was that IBM rewrote hpfs.ifs leaving out the ACL code and limiting the cache to 2MB. The OS/2 client came with IBM's hpfs and the server had Microsoft's hpfs386 as an expensive option. MS charged about $1000 for hpfs386. Eventually IBM rewrote JFS as a replacement for hpfs386 and also forked the new JFS for Linux Dryeo 01:39, 6 March 2007 (UTC)[reply]

OS/2 performance issues

One other thing that should be pointed out is that the reason DOS and Windows programs ran faster under OS/2 than DOS was due to the superior performance of HPFS compared to FAT Dryeo 01:42, 6 March 2007 (UTC)[reply]

Move

I moved this page back to "High Performance File System". If you search IBM's website for the exact phrase "OS/2 High Performance File System" you get three (3) results. If you search for the exact phrase "High Performance File System" you get hundreds. Same result using either Google Search or IBM's own website search. AlistairMcMillan 20:50, 6 March 2007 (UTC)[reply]

HPFS Today

Which Operating Systems still support HPFS today, if any? are there also drivers or utilities that allow operating systems like say, 2000, ME, XP and Server 2003 and Vista to read and write to it? RingtailedFox • Talk • Stalk 19:47, 16 June 2007 (UTC)[reply]

eComstation supports HPFS today. Windows 2000, XP and Server 2003 provide support via a modified pinball.sys (look for hpfsw2k), with both read/write. BartPE (Windows XP boot cdrom) can support it in the same way. Some forms of Linux support it too, as a data disk. Wendy.krieger 08:07, 4 September 2007 (UTC)[reply]

HPFS under Windows NT

Windows NT 3.1 contains full support for creating and installing in HPFS partitions. The ability to create HPFS partitions was removed by Windows 3.51, and the driver disappeared in NT 4.0. None the less, if pinball.sys (the driver) is installed in NT 3.51, and upgraded to NT 4.0, then it would still use it.

NT 5.0 and later use a different model, and the driver needs a further patch (eg search for hpfsw2k), such drivers can be used under Windows 2K and Windows XP (there is even a BartPE plugin for it). Wendy.krieger 08:04, 4 September 2007 (UTC)[reply]

pinball.sys

is the driver really called pinball.sys? this is kinda LOL. --grawity ^{talk / PGP} 18:04, 21 December 2007 (UTC)[reply]

Yes, it is. 195.4.207.39 (talk) 10:19, 22 February 2008 (UTC)[reply]

HPFS codename is, indeed "Pinball" —Claunia (talk) 10:20, 9 April 2008 (UTC)[reply]

HPFS386 Clarifications

I've made a clarification for HPFS386's memory usage ability (for caching). HPFS386 is not limited by available memory on OS/2. It is limited by avail memory in the SMA, which is DRASTICALLY different. Inotherwords, if a machine has 4GB of RAM, one cannot use 4GB of RAM (or 3GB or 2GB even) for cache. The limitation will be set by how the various OS/2 memory arenas are defined. Increasing the cache to something retarded, regardless of how much memory OS/2 is recognizing (and it can and does recognize the entire 32bit addressable range), will cause resource issues for other things that use the same memory arena (like thread handling and such). I'd provide citations, but they'd simply point to myself or my colleagues at OS/2 World and elsewhere. ;-) ROBERTMFROMLI | ^TK/_CN 23:16, 2 December 2010 (UTC)[reply]

The cache limitations are also affected by which kernel is in use. The v2-v4 kernels allocate memory different than the Aurora/v4.5x kernels, which also affects how much of the actual RAM is allocatable as an HPFS386 cache. ROBERTMFROMLI | ^TK/_CN 00:05, 3 December 2010 (UTC)[reply]

NT 4.1?

"However, Microsoft discouraged using HPFS in Windows NT 4 and in subsequent versions despite upgrades to NT 4.1 operating satisfactorily with servers pre-formatted with HPFS. " I've never heard of NT 4.1; but there is Windows 4.1 which is Windows 98. Is it supposed to say "upgrades to NT 4.0" ? 173.179.18.231 (talk) 16:03, 30 November 2012 (UTC)[reply]

I'm going to go ahead and change that to 4.0. The section isn't well cited anyway, but NT 4.1 is certainly factually inaccurate. Overand (talk) 18:12, 27 June 2015 (UTC)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on High Performance File System. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20060210154146/http://www.warpspeed.com.au/Products/OS2/GU/Manual/appg.htm to http://www.warpspeed.com.au./Products/OS2/GU/Manual/appg.htm

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 00:57, 22 March 2017 (UTC)[reply]

7.68 GB file size limit

what is the source for 7.68GB file size limit, every other souce says 2GB --176.126.186.120 (talk) 18:48, 5 November 2018 (UTC)[reply]