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ReiserFS v4 released
- Thread starter Sunner
- Start date
Should be good.
It's very fast, and you will never get to a point were you'll be left with a corrupt filing system, as long as the hardware holds up.
FSCK? Why? There is now no need for it.
Does it do journalling? Hell, no. There is no point.
Your filing system will never reach a inchoherent state. Your files are either written, or not. Your files are either moved, or not. Your files are either fully copied, or not. Never will their be a file half written. Never while you ever experiance problem during a file move will you end up with a missing or corrupt file.
Power outages? No sweat. As long as you save your working files often, then you will never have anything to phear, as long as your hardware is good.
Fully atomic filing system. All file movements/manipulation are accomplished completely in one step.
It's been attempted before, but nobody before Reiser could do it AND make it FAST.
Dancing Trees. Who'da thunk?
Now hopefully it will quickly get to "stable". Hopefully it's possible it will be stable. This could possibly be the filing system to end all filing systems. Make NTFS look like Fat16. 😛
Now all we need is non-volatile RAM for our PC's and I'd be happy.
It's very fast, and you will never get to a point were you'll be left with a corrupt filing system, as long as the hardware holds up.
FSCK? Why? There is now no need for it.
Does it do journalling? Hell, no. There is no point.
Your filing system will never reach a inchoherent state. Your files are either written, or not. Your files are either moved, or not. Your files are either fully copied, or not. Never will their be a file half written. Never while you ever experiance problem during a file move will you end up with a missing or corrupt file.
Power outages? No sweat. As long as you save your working files often, then you will never have anything to phear, as long as your hardware is good.
Fully atomic filing system. All file movements/manipulation are accomplished completely in one step.
It's been attempted before, but nobody before Reiser could do it AND make it FAST.
Dancing Trees. Who'da thunk?
Now hopefully it will quickly get to "stable". Hopefully it's possible it will be stable. This could possibly be the filing system to end all filing systems. Make NTFS look like Fat16. 😛
Now all we need is non-volatile RAM for our PC's and I'd be happy.
If it does work out though, it could help revolutionize the way filesystems work.
Not like other filesystems have never had problems. 😛
I just wish they would release the code under a different license (2/3 point BSD license), so it could be a bit easier getting it spread around.
The way I figure it, the best thing to do is never try to do anything new. Because if we try new stuff it could fail because it's not as well proven as something that has been being used for years. Like Fat32. 😛
ReiserFS 4 is some realy cool stuff. If it weren't for the wear and tear on the hardware, a perfectly acceptable way to try to save a file from undeleting would be to immediately pull the plug on the computer and hope that you cut power before the file operation finishes.
Imagine a file system that works the way people naturally expect a file system to work.
No journalling. Asyncronous file operations are fast and safe. It's extensable and flexible.
Some weird stuff, though. For example making a file a file AND a directory. Kind or what like Apple's HFS+ does, or some of NTFS's semi-undocumented features]http://patriot.net/~carvdawg/docs/dark_side.html[/L]. (Nice tricks for virus/worm writers though.)
Say you have a file named "helloworld.txt"
you can go:
ls -l helloworld.txt
But you could also go:
ls -l hellowworld.txt/
and see the files inside helloworld.txt that contains metadata, such as ACL's or icons or whatever you want. Much like what is used in OS X. However the way they are doing it would be backward compatable with older apps. You wouldn't have to modify ls to utilize it.
I am thinking that this would be usefull for creating file sharing software to be more compatable with OS X's way of doing metadata, or Windows XP SP2 NTFS's way of storing extra security data in the alternative data streams (that's what is used when download a file and it say's "it's not from a trusted source" type things.). Stuff like file sharing with ReiserFS4 aware SAMBA could benifit from it and be able to more well integrate with other OSes. Or something like that. (all quite a bit above my head).
Although I understand the lack of incentive to add such features to programs, but it could lead to other developements, I suppose.
ReiserFS 4 is some realy cool stuff. If it weren't for the wear and tear on the hardware, a perfectly acceptable way to try to save a file from undeleting would be to immediately pull the plug on the computer and hope that you cut power before the file operation finishes.
Imagine a file system that works the way people naturally expect a file system to work.
No journalling. Asyncronous file operations are fast and safe. It's extensable and flexible.
Some weird stuff, though. For example making a file a file AND a directory. Kind or what like Apple's HFS+ does, or some of NTFS's semi-undocumented features]http://patriot.net/~carvdawg/docs/dark_side.html[/L]. (Nice tricks for virus/worm writers though.)
Say you have a file named "helloworld.txt"
you can go:
ls -l helloworld.txt
But you could also go:
ls -l hellowworld.txt/
and see the files inside helloworld.txt that contains metadata, such as ACL's or icons or whatever you want. Much like what is used in OS X. However the way they are doing it would be backward compatable with older apps. You wouldn't have to modify ls to utilize it.
I am thinking that this would be usefull for creating file sharing software to be more compatable with OS X's way of doing metadata, or Windows XP SP2 NTFS's way of storing extra security data in the alternative data streams (that's what is used when download a file and it say's "it's not from a trusted source" type things.). Stuff like file sharing with ReiserFS4 aware SAMBA could benifit from it and be able to more well integrate with other OSes. Or something like that. (all quite a bit above my head).
Although I understand the lack of incentive to add such features to programs, but it could lead to other developements, I suppose.
Yes, a kernel upgrade would probably be in order. Maybe even a kernel patch. I don't think that it has been accepted into the mainstream kernel yet and even if it was, I considure it mostly experimental at this point.
At this point, you have to know what your doing in order to play around with it.
from here
installation overview
You would have to use a experimental version of 2.6.8.1 in order to get Reiser4 working.
(reiser4 and resierfs v3 are 2 completely different filing systems, BTW. Each reiser filing system is unique in itself. Unlike, for instance, ext2 and ext3. You can take a ext2 filing system and upgrade it to a ext3.)
At this point, you have to know what your doing in order to play around with it.
from here
installation overview
You would have to use a experimental version of 2.6.8.1 in order to get Reiser4 working.
(reiser4 and resierfs v3 are 2 completely different filing systems, BTW. Each reiser filing system is unique in itself. Unlike, for instance, ext2 and ext3. You can take a ext2 filing system and upgrade it to a ext3.)
Reiser4 will be included in the main kernel tree sooner or later, but for now, you'll need to download it in patch form and apply it to your tree.
I think Andrew Morton included in his tree as well(the -mm tree).
Andrew's tree is available at http://www.kernel.org, and the patches for the vanilla 2.6 tree are available here.
sciencewhiz
Diamond Member
Hans is like Linus, he gets bored with maintenance. If someone steps up and is serious about maintaining Reiser4, it will go a long way. If not, it will be just like Reiser3, just a hobbyists FS.
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