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As resources are stretched, managing them is more critical and more difficult. Virtualization can obscure performance issues and complicate storage management. Administrators trying to maintain their SLAs can quickly lapse into reactive mode, delaying true management of the environment by focusing on the immediate issue without a view of the big picture. Often reactive management leads to further complications and inefficiency. Home grown scripts and tools quickly become outdated as technology and personnel change. Under such conditions, management ineffectually and incompletely evaluates the environment and plans for the future by basing its decisions on outdated, incomplete, or minimal information.
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