GOAL OR METRIC: More than 40%
RATIONALE: The overall cost of storage is expensive and growing. So storingas much as possible on the fewest number of devices is critical. In a truly efficient data center, storage devices should approach 80% utilization, the point of diminishing returns. Of course, the only way to reach such high levels of efficiency are through virtualization, standardization of the underlying storage infrastructure, and use of enabling technologies such as iSCSI.
POTENTIAL RESULTS: Greater utilization mitigates the need for constant purchasing of new hardware.
SOURCE: IDC (2009, March). “The Economic Meltdown and Its Chilling Effect on the Cost to Power, Cool, and Manage Enterprise Storage.”, YAHOO
"storing as much as possible on the fewest number of devices increases the risk of data loss due to a lack of diversity. The goal should be about balance and system design life cycles. Too Much or Too Little of anything is a bad thing.