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Old 06-13-2013, 04:54 AM   #1
bypper
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Lightbulb 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,
 
Old 06-13-2013, 02:22 PM   #2
rtmistler
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I recommend using ext2 and installing e2compr to perform the compression.

My understanding is SquashFS is read-only, but I may be incorrect.
 
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Old 06-13-2013, 03:27 PM   #3
bypper
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Thanks rtmistler,
I don't know e2compr. How use it?

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

Btrs, Reiser4, ZFS...
 
Old 06-13-2013, 03:39 PM   #4
rtmistler
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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.
 
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Old 06-13-2013, 08:43 PM   #5
jefro
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I'd consider btrfs and zfs as you pointed out. It gets too complicated to fool with other ways.
 
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Old 06-14-2013, 01:00 AM   #6
chrism01
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If you want zfs as kernel modules instead of via fuse http://zfsonlinux.org/
 
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