Chiron FS - A FUSE based replication filesystem



latest RC9 package download:
http://www.axxium.us/users.zenwalk.org/ ... 6-50.1.dep
http://www.axxium.us/users.zenwalk.org/ ... 6-50.1.md5
http://www.axxium.us/users.zenwalk.org/ ... 6-50.1.tgz
http://www.axxium.us/users.zenwalk.org/ ... s/ZENBUILD
http://www.axxium.us/users.zenwalk.org/ ... hironfs.sh
http://www.axxium.us/users.zenwalk.org/ ... /build.log


Please visit http://code.google.com/p/chironfs/ for more info


Testing Chiron FS:

After install,

Step 1: Create 3 directories, one for the virtual filesystem and two for the replicas

        mkdir /virtual /real1 /real2

and do the mount with the commands;

        chironfs /real1=/real2 /virtual

Step 2: Confirm they are correctly mounted with the command:

        df

You should see a line like this:

        /real1=/real2  138456396 130613500    809640 100% /virtual

Step 3:Try to create/modify/delete some files in /virtual and check for the reflections in /real1 and /real2.

At this point you may be convinced that you have everything you need to start replicating your files. So umount it with the command:

        fusermount -u /virtual

I don't really understand, what I can do with this FS 

well, I package this because I probably need it for ZUT, but for general purposes, maybe you can get some ideas from the official website:

http://www.furquim.org/chironfs/about.html

Basically, it groups any two (or more) folders and make them functions like RAID1. Which means:

1. Real time backup
2. Auto fail-over if data on one folder is missing
3. The folders can actually come from NFS, sshfs ... etc. So real-time file redundancy across several machines is made possible
4. It's perfect for clustering or web hosting ... or for anyone that wants a lazy backup solution.

I think it's very useful in many cases, for ZUT it means I can merge several local repo into one.

HTH

I suddenly noticed that this software only releases under GPLv3 !

Can I still package it into extra repo?

Sure...why shouldn't you?

ok! Thanks! I was just worrying about the license issues ...

Does anyone like to try it and report test results please?

Hello

I am the author of the software and I am very happy to hear that it is being useful for
you . If you have any questions/suggestions/reports etc, feel free to contact me.

I will be publishing the 1.0-RC9 in the next days. It will fix the security bug reported at
http://code.google.com/p/chironfs/issues/detail?id=8 . I delayed that publishing because
I am writing a test software to automate the test of the security by performing a set of
operations both in a Chiron FS subtree and in a real filesystem (non ChironFS) subtree
and checking if the results are different.

Thank you for your attention

Hi luisfurquim:

First of all, I'd like to thank you for the great idea and the effort of coding devoted to this project. I found it when I was searching solutions of file system fail-over for the two clusters in the place I work. although eventually we didn't deploy it because some other guy had wrote an cron-backup script to copy everything in real-time (... Yeah, I know ... That is ...) but I really like the concept and the simplicity of the project.

IMO, Zenwalk Linux also focuses on simplicity and provides an OS with unique design and taste. That's a big reason I built the package. For my personal purposes, I'm planing to use it on a little script I wrote for Zenwalk.

Thank you again for dropping by. I am looking forward to the RC9 release. 

Oh and, just wondering, any chances that you can become a Zenwalk user as well? 

Best regards,

infwonder

Hello infwonder:

Glad to hear it! I just downloaded the Zenwalk Standard. I will try it this night  . Three things I notice that
are of great interest for me: It runs light on old machines, it has multimedia support and development
support out of the box  !

Best Regards

Luis Otavio Furquim

Welcome to Zenwalk! I hope you like it as much as I do ... 

I got an email from the developer (luisfurquim) said he had the latest RC9 released which fix some security issues. This version has been out for a week or so and so far no bug report at all! He think this should be a rather stable release but still want it to be widely tested before removing the "RC" tag.

Let's help him!


Testing Chiron FS:

After install,

Step 1: Create 3 directories, one for the virtual filesystem and two for the replicas

        mkdir /virtual /real1 /real2

and do the mount with the commands;

        chironfs /real1=/real2 /virtual

Step 2: Confirm they are correctly mounted with the command:

        df

You should see a line like this:

        /real1=/real2  138456396 130613500    809640 100% /virtual

Step 3:Try to create/modify/delete some files in /virtual and check for the reflections in /real1 and /real2.

At this point you may be convinced that you have everything you need to start replicating your files. So umount it with the command:

        fusermount -u /virtual

latest RC9 package download:
http://www.axxium.us/users.zenwalk.org/ ... 6-50.1.dep
http://www.axxium.us/users.zenwalk.org/ ... 6-50.1.md5
http://www.axxium.us/users.zenwalk.org/ ... 6-50.1.tgz
http://www.axxium.us/users.zenwalk.org/ ... s/ZENBUILD
http://www.axxium.us/users.zenwalk.org/ ... hironfs.sh
http://www.axxium.us/users.zenwalk.org/ ... /build.log

Hello

First of all, I would like to thank you for the attention with
ChironFS! 

As I told to Infwonder, this version is a strong candidate to
be the stable version. But to be sure that it really is,
feedbacks are essential!

So I would appreciate any help you could provide: tests,
suggestions, etc. 

Again, thank you!

Best Regards

Luis Otavio Furquim