Compressed Filesystem for Linux
 

Hi Everybody:

I'm searching a compressed Filesystem for a external disk, what I use for a full, diary and differential Backup.

The performance is not important, I search the best option for compress data, but I want have access to structure disk, with directories and files in the Backup disk.

Compress data with a tool as tar + gzip, is not a option.

I'm thinking in SquashFS.
What do you recommend me?

Best Regards,

I recommend using ext2 and installing e2compr to perform the compression.

My understanding is SquashFS is read-only, but I may be incorrect.

Thanks rtmistler,
I don't know e2compr. How use it?

But, another FS with transparent compression, can help me, too.

Btrs, Reiser4, ZFS...

Here's some info on it, it's not new and if you check it wasn't maintained for a few years, but saw some resurgence.

http://en.wikipedia.org/wiki/Ext2#Compression_extension

I prefer XFS for my flash file systems, never looked for any compression code for that one.

I'd consider btrfs and zfs as you pointed out. It gets too complicated to fool with other ways.

If you want zfs as kernel modules instead of via fuse http://zfsonlinux.org/