Tuesday, August 6, 2013

Should I defrag my Guest OS?

A very good post that answer this question,
http://blogs.vmware.com/vsphere/2011/09/should-i-defrag-my-guest-os.html#comment-203323

But in general, NO, you should not defrag the Guest OS:

  1. Defragmentation also generates more I/O to the disk. This could be more of a concern to customers than any possible performance improvement that might be gained from the defrag.
  2. There isn't any noticeable improvement in performance after a defragmentation of Guest OSes residing on SAN or NAS based datastores. (As VM Says)


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