Open Source SAM/QFS

For those of you that have never heard of Sun’s (formerly LSI) SAM/QFS, this is a high performance filesystem that also has high performance HSM capabilities. I’ve installed this and used it in some very large sites. Amongst the many good things you can do: multiple reader/multiple writer clustered file system, dynamic inode creation, dynamic migration and staging (even in the middle of a file when you do a fseek), file size based volume selection (let’s you send large files to volumes optimized for large files and small files to volumes design for them all in the same filesystem).

Now if the SAM/QFS guys and the ZFS guys could merge this stuff together, oh-la-la!

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