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= Server Virtualization =
 * Also see [[linux/Virtualization]] and [[BigDatacenters]]
== Challenges ==
 * additional complexities introduced
 * Share everything, CPU, Memory, network and disk, resulting in resource contention.
   * metrics like I/O per second within a VM guest are misleading.
 * Hard to find real root cause.
   * Need: effective detect, diagnose and resolve (DDR) foundation


== Storage ==
 * Need more
   * Mobility, and temporary images as storage migrates
   * Random I/O caused by multiple server
     * Combat I/O bottle neck with 
...