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The zero fill technique Submitted by keyboard.operator (not registered) on Fri, 2008-12-12 19:45. The zero fill technique helps, but I found that I had to the following: Write a file filled with non-zeros. Run sync Replace that file with all zeros. Run sync. Remove the zero fill file. Shutdown the OS and then run the shrink. I tried this when I noticed that writing all zeros does not change the size of the underlying vmdk.  I assume there is an optimization somewhere that handles the zero case. Please do not use the comment function to ask for help! If you need help, please use our forum. Comments will be published after administrator approval. Reply Your name:* E-mail:* The content of this field is kept private and will not be shown publicly. Homepage: Subject: Comment:* Input format: Filtered HTML Images can be added to this post. Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <img> <div> Lines and paragraphs break automatically. Full HTML More information about formatting options