Differences between revisions 4 and 31 (spanning 27 versions)

unionfs-fuse

This is my effort to create a unionfs filesystem implementation which is probably slower but way more flexible than the current in-kernel unionfs solution. Currently it's almost fully usable, will only minor convenience issues to be fixed...

I'm open to patches, suggestions, whatever (at radek@podgorny.cz)...

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Why choose this stuff

The filesystem has to be mounted after the roots are mounted when using the standard module. With unionfs-fuse, you can mount the roots later and their contents will appear seamlesly
You get caching which speeds things up a lot for free
You get nice stats (optional)

Why NOT choose it

Compared to kernel-space solution we need lots of useless context switches which makes kernel-only solution clear speed-winner

Usage

unionfs [options] root[:root...] mountpoint
The first argument is a colon separated list of directories to merge

general options:
    -o opt,[opt...]        mount options
    -h   --help            print help
    -V   --version         print version

UnionFS options:
    -o stats               show statistics in the file 'stats' under the mountpoint

TODO

Add support for choice which roots are read-only and which are not
Add cache controls
Handle writing to /stats intelligently

GoogleAd()

Donation

If you use the software and like it, please consider a donation (provided by PayPal)...

-  ⇤ ← Revision 4 as of 2006-01-27 18:39:26 → 
  Size: 331
  Editor: RadekPodgorny
  Comment:
+   ← Revision 31 as of 2007-01-27 12:44:47 → ⇥
  Size: 1780
  Editor: RadekPodgorny
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-This is my effort to create a unionfs implementation which is probably slower but way more flexible than the current in-kernel unionfs solution. More info will come soon...
+This is my effort to create a unionfs filesystem implementation which is probably slower but way more flexible than the current in-kernel unionfs solution. Currently it's almost fully usable, will only minor convenience issues to be fixed...
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-This is still INCOMPLETE!!!
+I'm open to patches, suggestions, whatever (at radek@podgorny.cz)...
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-== Available parameters ==
+[[GoogleAd()]]
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- * {{{--roots=/root1,/root2}}}
 * {{{--stats}}}
+== Why choose this stuff ==
-Line 12:
+Line 11:
-attachment:unionfs.c
+ * The filesystem has to be mounted after the roots are mounted when using the standard module. With  unionfs-fuse, you can mount the roots later and their contents will appear seamlesly
 * You get caching which speeds things up a lot for free
 * You get nice stats (optional)

== Why NOT choose it ==

 * Compared to kernel-space solution we need lots of useless context switches which makes kernel-only solution clear speed-winner

== Usage ==

{{{
unionfs [options] root[:root...] mountpoint
The first argument is a colon separated list of directories to merge

general options:
    -o opt,[opt...]        mount options
    -h   --help            print help
    -V   --version         print version

UnionFS options:
    -o stats               show statistics in the file 'stats' under the mountpoint
}}}

== TODO ==

 * Add support for choice which roots are read-only and which are not
 * Add cache controls
 * Handle writing to /stats intelligently

[[GoogleAd()]]

== Donation ==

If you use the software and like it, please consider a donation (provided by Pay''''''Pal)...

[[PayPalDonation()]]

== Download ==

 * Latest version: 0.16 (released 2007-01-26)
 * Archive location: http://podgorny.cz/unionfs-fuse/releases/

If you want to follow the development closely, see my mercurial repository at:

 * http://hg.podgorny.cz/unionfs-fuse