For example, rather than running a database that needs 5,000 IOPS on 250 disk drives, put the heaviest-hit portions of that database on a pair of mirrored and protected solid-state disks. The rest of the data can use a smaller number of traditional fast disks while backups can go to high-capacity SATA drives, he says.
"In other words, rethink and re-tier. In a given footprint, you might be able to cut actual floor space in half, double capacity, boost performance and halve the power bill while still meeting all the business objectives," Schulz says.
In their own words:
"Consumed 8X less capacity by using thin provisioning and reduced data center space requirements."
"Eliminating tape, going directly to disk, and deduplicating, saved up to 80% on existing volumes. Quadrupled storage utilization from: 20% - 25% to 80% - 85%."
"Fewer drives enable us to reduce power consumption and sophisticated reporting tools allow the IT department to keep track of storage usage and run the systems more efficiently."
Desktop power management
What makes it green: Enterprise desktop power management software automatically places monitors and computers into low-power modes - sleep or hibernation, for example - after a period of inactivity or during off-hours. Idle, low-powered desktops can still receive security patches or other administrative updates. Desktops typically re-activate within seconds upon a mouse click or keystroke.
Desktop power management stands out as one of the three chief ways enterprises can achieve energy-savings, Lawrence says. "If you're going from a completely unmanaged to a managed environment, you'll normally see a fairly significant savings right away," he says.
The federal government's Energy Star program estimates that enterprises can cut the amount of electricity needed for desktops in half, saving $25 to $75 per PC annually, by using power management software. Likewise, automatically placing desktops into low-power states will reduce office cooling loads to the tune of another $5 to $25 per PC annually, depending on climate, Energy Star says.