Autonomic, BigFix, and Symantec Altiris solutions offer a wealth of potential power savings, but also differences in policy depth, granularity, and ease
Companies are anxious to reduce power usage these days, both to save cash on energy bills and to reduce their environmental impact. One area that's ripe for power savings is the desktop. At companies across the globe, end-users leave their computers and monitors on day and night for any number of reasons, be it for late-night backups and patching or ensuring they can get cracking the moment they sit down at their desks each morning.
These conveniences come at an overlooked price: Keeping a PC running 24/7 can cost as much as $375 per year, depending on the type of computer and monitor, as well as energy rates in your region. Shutting down a PC for 16 hours or so per day can cut those costs by 66 percent. That translates to potential savings of more than $120,000 if you have 500 machines.
Rather than relying on end-users to power down their machines and monitors each night, then reboot them in the morning, organizations are increasingly turning to power management offerings, products capable of powering machines on and off at predetermined times to ensure that they're awake when it's time for work, backups, or patches. Otherwise, they'll be asleep so as not to waste energy and money.
I had an opportunity to test out three power management software systems aimed at the enterprise desktop market, from vendors Autonomic Software, BigFix, and Symantec. Notably, all three software products are part of suites intended to provide a great many more PC management functions beyond control over power usage, such as remote desktop support, configuration and patch management, vulnerability assessment, and endpoint protection.
Windows XP, Vista, and Windows 7 already come equipped with tools for putting a machine in a low-power state (ranging from standby and sleep to complete shutdown) at a set period of time or a predetermined amount of inactivity. Why, then, would an organization invest in a separate power-management tool? The reason: These tools offer several useful features not available in Windows. For example, they can locate systems with hibernation disabled and re-enable it. They can shut down applications and save files before powering down the system. Admins can set different durations of inactive time before hibernation is triggered; for example, to prompt a machine to sleep after only a couple of minutes of inactivity during evenings and weekends -- but not until, say, a half-hour during the work day. Admins also can use the tools to automatically restart PCs at predetermined times, such as in the middle of the night for software updates and patches, or in the morning, shortly before the users arrive.
Enter power mode
There are several modes of power saving, depending on the OS, motherboard, monitor, and power strip or UPS. When Windows powers down a monitor, for instance, power usage on the monitor doesn't drop to zero; rather, it enters a power-saving mode defined by the manufacturer, generally using less than 3 watts. Even if the monitor is turned off, its power supply may be using some electricity. This is true of PCs as well; even when shut down, they still draw some power to keep the clock running and enable wake-on-LAN and other features.
Overall Score (100%)
|Symantec Altiris 7.0.354||7.0||8.0||7.0||9.0||8.0|
|Autonomic Software ANSA Platinum Suite||9.0||9.0||9.0||9.0||8.0|
|BigFix Enterprise Suite 7.2||8.0||8.0||9.0||9.0||9.0|
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