Messages in this thread | | | From | Jesse Pollard <> | Subject | Re: ANNOUNCEMENT: Squashfs released (a highly compressed filesystem) | Date | Wed, 30 Oct 2002 08:53:09 -0600 |
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On Tuesday 29 October 2002 10:11 pm, Larry McVoy wrote: > > A r/w compressed filesystem would be darned useful too :) > > mmap(2) is, err, hard. Not impossible, it means the file system has to > support both compressed and uncompressed files, but it's interesting.
You can also think of it as a step toward a hierarchical filesystem with the files: 1. uncompressed (with uncompressed inode) 2. compressed on line (real disk space allocated) 3. compressed nearline (only compressed inode on disk, with a reference to offline storage)
Obviously this is only for very large filesystems (we have one FS that is currently between 100-200 TB in size when you include the migrated storage). -- ------------------------------------------------------------------------- Jesse I Pollard, II Email: pollard@navo.hpc.mil
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