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Q1. How is ShaoLin CogoFS differ from DoubleSpace, Stacker, NTFS and other file systems that supports compression?
DoubleSpace, Stacker, NTFS are block file systems. The entire volume or file system must
be converted to their proprietary binary formats. Experience of those users find these
proprietary format often lack of file system tools to understand and they are easy to corrupt.
Due to lack of rescue tools support, usually the entire volume is lost in case a corruption occurred!
ShaoLin CogoFS allow to ride on top of other file systems. You may want to use XFS, Ext3 to provide
journalling but they didn't support compression. ShaoLin CogoFS comes into play as it compresses individual
files on existing file systems. If the block in your original file systems corrupts, you can use
your favourite file system tools (e.g. fsck). The max disruption can be caused by ShaoLin CogoFS is the lost of
one file. It can also ride on (stack on) top of NFS to provide compression for network traffic.
This is just like reading/writing a smaller (compressed) file to the NFS server.
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Q2. Do I need to install ShaoLin CogoFS at the NFS server?
If you are using ShaoLin CogoFS at the NFS client, you don't need to install ShaoLin Cogofs at the NFS server.
However, if your NFS server itself want to access those files, your NFS server will also required to install ShaoLin CogoFS.
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Q3. Can I use ShaoLin CogoFS to compress my local file system instead of network?
Of course yes. It supports most of the common file systems in Linux.
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Q4. Does ShaoLin CogoFS work on my Linux distribution?
ShaoLin CogoFS is known to work on many Linux distributions. Please check the latest release notes of
ShaoLin CogoFS for more detail informaton.
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Q5. I am planning to run a cluster of Linux servers using a NAS NFS backend. Can I use ShaoLin CogoFS in my server environment?
Yes, the NAS need not to aware of CogoFS clients (this case the servers). ShaoLin CogoFS is compatible with
NFS so it can be use without problem.
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Q6. Can I do an NFS export for a ShaoLin CogoFS mounted file system?
Technically, the standard ShaoLin CogoFS does not support export with NFS. Also, the license of ShaoLin CogoFS
is limited to use on client only. There exists an advanced version of ShaoLin CogoFS (for server) which supports NFS server
and also with a license that is allowed to do this.
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Q7. Can I use ShaoLin CogoFS in my embedded Linux device?
Yes, OEM license of ShaoLin CogoFS is available. It has been ported to various CPU architectures including
StrongARM, Xscale and other CPUs.
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