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	ReiserFS (Site not responding. Last check: 2007-10-26)
		Reiser4 is based on plugins, which means that it will attract many outside contributors, and you'll be able to upgrade to their innovations without reformatting your disk.
		Reiser4 nodes are usually equal to the size of a page, which if you use Gnu/Linux on an Intel CPU is currently 4096 (4k) bytes.
		Reiser4 returns to the classical definition of a height balanced tree in which the lengths of the paths to all leaf nodes are equal.
	www.namesys.com /v4/v4.html (17385 words)

	Linux ReiserFS File System Data Recovery
		Reiser4 is an atomic file system, which means that your file system operations either entirely occur, or they entirely don't, and they don't corrupt data due to half occurring.
		Reiser4 is more space efficient than other file systems because it squishes small files together rather than wasting space due to block alignment like they do.
		Reiser4 is based on plugins, which means that it will attract many outside contributors, and you'll be able to upgrade to their innovations without reformatting your disk.
	www.optimumrecovery.com /data/linux-reiserfs.html (1226 words)

	Reiser4 - Biocrawler (Site not responding. Last check: 2007-10-26)
		Reiser4 is a computer file system, a new "from scratch" version of the ReiserFS file system, developed by Namesys and sponsored by DARPA as well as Linspire.
		Some of the more advanced Reiser4 features (such as user-defined transactions) are also not available because of a lack of a VFS API for them.
		Reiser4 uses dancing trees, a version of B*-trees in which underpopulated nodes won't get merged until a flush to disk except under memory pressure or when a transaction completes.
	www.biocrawler.com /encyclopedia/Reiser4 (238 words)

	Reiser4 - die unendliche Geschichte - Golem.de
		Er sei zwar nicht der Meinung, dass Ext4 nicht in den Kernel gelangen dürfe oder erst wenn es eine bessere Leistung als Reiser4 aufweist, Reiser fordert eine Gleichbehandlung und sieht in Reiser4 ein Update für Reiser3, das alle kritischen Fehler beseitige.
		Vor allem sei Reiser4 stabil und die Distributionen müssten wissen, ob es in den Kernel gelangt, bevor sie es selbst integrieren.
		Sollte Reiser4 in Kernel 2.6.19 gelangen, wie Hans Reiser nach eigenen Angaben gehört hat, sei er zufrieden.
	www.golem.de /0607/46733.html (441 words)

	Linux: Reiser4's Future \| KernelTrap
		The future of Reiser4 was raised on the lkml, with the filesystem's creator, Hans Reiser [interview], awaiting his May 7'th trial [story].
		Benchmarks suggest that reiser4 is a good file system; reiser4 is the successor to the already-accepted reiserfs; we've got experimental ext4 support but no reiser4 support, etc. I don't see why something like plugins should matter.
		The second thing to note, is that every single benchmark for reiser4 has grown worse in the passage from the 2.6.13 kernel, to the 2.6.20 kernel.
	kerneltrap.org /node/8102 (4754 words)

	Lindows.com to Support Reiser4 in Next Release \| LinuxElectrons
		Reiser4 will be built into LindowsOS, the leading Desktop Linux operating system, in early 2004, allowing the operating system to take advantage of the latest technologies in writing data onto hard drives.
		Reiser4, a complete rewrite from the previous version, features a number of advanced technologies to eliminate file corruption, enhance security and save hard drive space while also maximizing speed of writing to the hard drive.
		Reiser4 is also an "atomic" filesystem, so file corruption is eliminated, since operations are either completed or do not occur at all, making it virtually unbreakable.
	www.linuxelectrons.com /news/application/lindows-com-support-reiser4-next-release (380 words)

	a very occasional diary
		Reiser4 version of this algorithms, officially known as a dancing tree is closest to the B
		Reiser4 is a next version of well-known reiserfs v3 file system (also known as simply reiserfs) that was first and for a long time the only journalled file system for Linux.
		Reiser4 design is based on the assumption, that cause-and-effect goes in the opposite direction here: applications do not use large directories and small files precisely because existing file system didn't provide efficient means for this.
	nikitadanilov.blogspot.com (7534 words)

	broadband help » Forums » Tech and Talk » All Things Unix » [Distro release] Kanotix 08 -- ...
		Reiser4 can allow us to easily distinguish the two, and everything that goes with it.
		Reiser4, with it's plugin system, has the potential to become a direct hook to DRM and proprietary licensing in the OS's that use them.
		Using a plugin, one could easily write a filesystem that requires a key to read the data, write a filesystem that destroys itself after a certain amount of time, or even disallows itself to be copied, read, or executed by anything not meeting some specific criteria (some piece of hardware present, etc).
	www.dslreports.com /forum/remark,11444121~mode=flat~days=9999~start=26 (2343 words)

	Reiser4 - SourceMage Wiki (Site not responding. Last check: 2007-10-26)
		Reiser4 solved some corruption problems existing with reiserfs.
		you want a completly stable filesystem : reiser4 is still experimental, and although lots of people are using it without problems, you should not consider it as stable as reiserfs or ext3, yet.
		To be able to use reiser4, you first need to enable its support in the kernel.
	wiki.sourcemage.org /Reiser4 (994 words)

	Reiser4 - Gentoo Linux Wiki
		Reiser4 is a computer file system, a new "from scratch" successor to the ReiserFS file system, developed by Namesys and sponsored by DARPA as well as Linspire.
		As of 2006, Reiser4 has not yet been merged into the mainline Linux kernel due to not adhering to Linux's coding standards and consequently is still not supported on many Linux distributions except Linspire; however, its predecessor ReiserFS v3 has been much more widely adopted.
		Reiser4 is also available from Andew Morton's -mm kernel sources.
	www.gentoo-wiki.com /Reiser4 (103 words)

	Reiser4, Part II: Designing Trees that Cache Well \| Linux Journal
		By contrast, Figure 7 is a Reiser4 tree with a fanout of three, a BLOB in the level-one leaf nodes and the pointer to it in the level-three twig nodes.
		Reiser4 returns to the classical definition of a height-balanced tree in which the lengths of the paths to all leaf nodes are equal.
		Reiser4 reduces the number of internal nodes, nodes containing pointers, from the number required for ReiserFS v3.
	www.linuxjournal.com /article/6569 (2768 words)

	Reiser4 Filesystem :: OSDir.com :: Open Source, Linux News & Software (Site not responding. Last check: 2007-10-26)
		# Reiser4 is an atomic filesystem, which means that your filesystem operations either entirely occur, or they entirely don't, and they don't corrupt due to half occuring.
		This makes Reiser4 more space efficient than other filesystems because we squish small files together rather than wasting space due to block alignment like they do.
		# Reiser4 is based on plugins, which means that it will attract many outside contributors, and you'll be able to upgrade to their innovations without reformatting your disk.
	osdir.com /modules.php?op=modload&name=News&file=article&sid=1492 (485 words)

	LWN: Kernel development
		This lengthy document provides discussion in depth of many of the Reiser4 features (not all of which are implemented yet), along with an explanation of Hans Reiser's long-term vision for filesystems, a polemic on free software, and some of the weirdest imagery to be found in software documentation anywhere.
		The document entitled The Infrastructure for Security Attributes in Reiser4 is actually a relatively straightforward discussion of many of the technical details behind the Reiser4 design, and might be a better starting point.
		Reiser4 is heavily transaction-oriented, and is able to provide guarantees that operations will be performed atomically.
	www.lwn.net /Articles/13587 (2049 words)

	Linux: Reiser4 Plugins \| KernelTrap
		Reiser4 is usable and useful NOW, not after it has undergone massive surgery, and Namesys is bankrupt, and users have given up and moved on to XFS.
		Reiser4 implements many of the ideas that winFS is supposed to have in longhorn (I hate to be so general).
		Folks, Reiser4 is the closest to that currently out there...and, with its much-complained-of plugins, it permits some rather phenomenal capabilities on large servers that can provide many attributes that can be customized to the individual user--elegantly, quickly, and successfully.
	kerneltrap.org /node/5330 (8405 words)

	Reiser4 has been released! - Discussion@SR
		It is theoretically possible for Reiser4 to manage the tags on your music collection for example, and do it with infinite flexibility.
		Reiser4 is a filesystem that is designed to compete with the performance of databases in the tasks at which they excel (referencing and qualifying data).
		The tools don't exist, presently, to test Reiser4 as anything but a filesystem in the traditional sense, which is only where its performance, and its utility, begins.
	forums.storagereview.net /index.php?act=ST&f=2&t=16716 (3703 words)

	Reiser4/ToDo - ReiserFS
		Tasks are needed to done for getting reiser4 code into the kernel as found by AKPM in 2.6.18-rc2-mm1 (# means that an issue is done)
		#reiser4_invalidate_pages() is a mix of reiser4 things and of things-which-the-vfs-is-supposed-to-do.
		I don't see how a vendor could support reiser4 without these features and permanent lack of vendor support will hurt.
	pub.namesys.com /Reiser4/ToDo (682 words)

	Reiser4 Filesystem Work by Will Smith (Site not responding. Last check: 2007-10-26)
		The good news: Reiser4 promises to be a revolutionary new filesystem for Linux.
		Not only is it faster than the widely used 'ext3' and 'reiser3' filesystems, but it's also got a powerful and extensible plugin architecture.
		All content is Copyright ©2000-2004 William Owen Smith and are released under
	www.willsmith.org /opensource/reiser4 (127 words)

	Reiser4 Experiences - The Changelog
		I am really interested in trying out Reiser4 but am patiently waiting for it to be included in the kernel (even as experimental).
		I have no need for the pseudo files, so I disable the support, which makes Reiser4 behave with standard Linux semantics (that is, in the same way as all other Linux filesystems).
		Reiser4 uses dancing trees which means that all written data are put aside and after successfully written, the storage tree "dances" to mark these data as the regular file (and the previous content as unused).
	changelog.complete.org /node/320 (727 words)

	More notes on reiser4 [LWN.net]
		One comment from Hans Reiser took LWN to task for not having started with a kernel tarball which was created from a reiser4 filesystem to begin with.
		It seems that reiser4 is highly sensitive to the order in which files are created, and using the wrong order does not show the filesystem in its best light.
		First is that the things Reiser4 puts in the attribute space of a file seem to me to be virtual files, in the sense that they replicate existing metadata in the filesystem in a different namespace.
	lwn.net /Articles/100148 (5689 words)

	Reiser4 Transaction Design Document (Site not responding. Last check: 2007-10-26)
		In general, it is possible to use either approach to update a block - log a copy of the block and overwrite its original location or relocate the block and modify its parent block within the same transaction.
		In Reiser4 this decision is made independently for each block by a block-allocation plugin based on the set of modified blocks, the current file system layout, and the associated costs of each update method.
		Another hot spot in the reiser4 filesystem is the super block, which contains the free blocks counter.
	www.namesys.com /txn-doc.html (4938 words)

	Reiser4 to go mainline? \| APC Magazine
		Reiser4, the successor to the popular Reiserfs by Hans Reiser, has been in development for a number of years now and, for almost as long, Reiser has been pushing for inclusion of the filesystem in mainline -- that is, to make it into the official kernel release.
		Still, he has listened to criticism and slowly but surely Reiser4 has been prepared to merge into mainline, thanks to reviews of the code and feedback by kernel developers.
		Morton confirmed there are plans to finally integrate the filesystem, but that it wasn't going to be happening just yet, stating there is some still some ground to cover and a 2.6.20 release is unlikely.
	www.apcstart.com /node/3074 (656 words)

	Linux.com \| Reiser4 and the politics of the kernel (Site not responding. Last check: 2007-10-26)
		To Calleja's suggestion that he try the tactic of introducing Reiser4 through a distribution, Reiser replies that kernel developers are far more suitable than the average user of a distribution.
		Similarly, when Reiser formally requested that Reiser4 be accepted into the kernel in September 2005, Christoph Hellwig, one of the lead maintainers for filesystems in the kernel, noted that its source code did not follow the kernel coding style.
		He compares what he perceives as the resistance to Reiser4 to the apparent fast-tracking of ext4, the recently announced successor to the widely used ext2 and ext3 filesystems.
	programming.linux.com /programming/06/07/31/1548201.shtml?tid=91&tid=96 (2510 words)

	Reiser4 - Computing Knowledgebase (Site not responding. Last check: 2007-10-26)
		Reiser4 is a computer filesystem, a new "from scratch" version of the ReiserFS file system, developed by Namesys.
		Additionally, Reiser4 introduces dancing trees, a version of B*-trees with the key difference being that underpopulated nodes won't get merged until a flush to disk is forced by low memory or a completed transaction.
		Benchmarks performed by Namesys show that Reiser4 is 10 to 15 times faster than Ext3 working on files smaller than 1KB.
	pc.wikia.com /wiki/Reiser4 (230 words)

	Linuxarkivet: Re: reiser4 plugins
		In fact, some people have suggested that all "legacy" (read: non-reiser) filesystems should be implemented as Reiser4 plugins, effectively killing VFS.* So, Reiser4 may eventually take over VFS and be the only Linux filesystem, but if so, it will have to do it much more slowly.
		Reiser4 is usable and useful NOW, not after it has undergone massive surgery, and Namesys is bankrupt, and users have given up and moved on to XFS.
		I honestly don't care about how XFS is segmenting the disk, or Reiser4 packs really well, or ext3 can be read as ext2 and flushes to disk every five seconds.
	www.linuxarkivet.se /mlists/linux-kernel/0506/msg05315.html (771 words)

	Using ReiserFS with Linux
		Reiser4 isn't integrated with the Linux 2.6 kernel yet, which is usually a sign of possible instability or other reasons to tread carefully.
		Reiser4 supports lots of interesting features that you might never need to take advantage of and some that you can't even access, because Linux's VFS layer doesn't expose the functionality -- much like how the Batmobile has all kinds of features you're not going to need on your way to the office.
		Reiser4 should still be considered experimental (even though many people are using it without problems), because it hasn't been accepted into the Linux kernel yet.
	www-128.ibm.com /developerworks/aix/library/au-unix-reiserFS/index.html (2457 words)

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