Windows server 2008 power management ups




















When you tune your server for energy savings, you must also consider performance. Tuning affects performance and power, sometimes in disproportionate amounts. For each possible adjustment, consider your power budget and performance goals to determine whether the trade-off is acceptable. Windows Server default parameter tuning uses Energy Efficiency as a key metric to balance power and performance.

Energy efficiency is the ratio of work that is done to the average power that is required during a specified amount of time. You can use this metric to set practical goals that respect the tradeoff between power and performance. In contrast, a goal of 10 percent energy savings across the data center fails to capture the corresponding effects on performance and vice versa. Similarly, if you tune your server to increase performance by 5 percent, and that results in 10 percent higher energy consumption, the total result might or might not be acceptable for your business goals.

The energy efficiency metric allows for more informed decision making than power or performance metrics alone. You should establish a baseline power measurement before you tune your server for energy efficiency. If your server has the necessary support, you can use the power metering and budgeting features in Windows Server to view system-level energy consumption by using Performance Monitor.

One way to determine whether your server has support for metering and budgeting is to review the Windows Server Catalog. If your server model qualifies for the new Enhanced Power Management qualification in the Windows Hardware Certification Program, it is guaranteed to support the metering and budgeting functionality. Another way to check for metering support is to manually look for the counters in Performance Monitor. If named instances of power meters appear in the box labeled Instances of Selected Object , your platform supports metering.

The Power counter that shows power in watts appears in the selected counter group. The exact derivation of the power data value is not specified. For example, it could be an instantaneous power draw or an average power draw over some time interval. If your server platform does not support metering, you can use a physical metering device connected to the power supply input to measure system power draw or energy consumption.

To establish a baseline, you should measure the average power required at various system load points, from idle to percent maximum throughput to generate a load line. The following figure shows load lines for three sample configurations:. You can use load lines to evaluate and compare the performance and energy consumption of configurations at all load points. In this particular example, it is easy to see what the best configuration is. However, there can easily be scenarios where one configuration works best for heavy workloads and one works best for light workloads.

You need to thoroughly understand your workload requirements to choose an optimal configuration. Don't assume that when you find a good configuration, it will always remain optimal. You should measure system utilization and energy consumption on a regular basis and after changes in workloads, workload levels, or server hardware.

When you run PowerCfg. The tool generates a simple HTML report in the current directory. To ensure an accurate analysis, make sure that all local apps are closed before you run PowerCfg.

This tool provides a simple way to identify and fix power management issues, potentially resulting in significant cost savings in a large datacenter.

For more info about PowerCfg. Windows Server has three built-in power plans designed to meet different sets of business needs.

These plans provide a simple way for you to customize a server to meet power or performance goals. The following table describes the plans, lists the common scenarios in which to use each plan, and gives some implementation details for each plan. These power plans exist in Windows for alternating current AC and direct current DC powered systems, but we will assume that servers are always using an AC power source.

For more info on power plans and power policy configurations, see Powercfg command-line options. Some server manufactures have their own power management options available through the BIOS settings.

If the operating system does not have control over the power management, changing the power plans in Windows will not affect system power and performance. Each power plan represents a combination of numerous underlying power management parameters. The built-in plans are three collections of recommended settings that cover a wide variety of workloads and scenarios. However, we recognize that these plans will not meet every customer's needs.

The following sections describe ways to tune some specific processor power management parameters to meet goals not addressed by the three built-in plans. If you need to understand a wider array of power parameters, see Powercfg command-line options. HWP is a new capability for a cooperative hardware and software performance control.

OS is no longer required to monitor activity and select frequency at regular intervals. Switching to HWP has several benefits:. Then I installed PowerAlert It does not work. I called Tripplite support. They said 1 uninstall PowerAlert 2 Delete the "Tripplite" folder from Program Files x86 , delete the Tripplite registry entry then try reinstalling again exactly like I did the first time, adding "maybe something 'got corrupted'".

Office Office Exchange Server. Not an IT pro? Windows Server TechCenter. Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums. Search titles only. Search Advanced search…. New posts. Search forums. Log in. Sign up. Computer problem? Tech Support Guy is completely free -- paid for by advertisers and donations. Click here to join today! JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.

Thread starter apr Start date Feb 15, Status This thread has been Locked and is not open to further replies. The original thread starter may use the Report button to request it be reopened but anyone else with a similar issue should start a New Thread.

Watch our Welcome Guide to learn how to use this site. Joined Jan 25, Messages So Microsoft, in their infinite wisdom, has once again removed a "feature" from their OS and replaced it with something better read nothing at all. I am of course referring to the support for Uninterruptible Power Supply aka Battery backup. This really sucks and whoever advised microsoft to replace this service especially on the Server OS with the "same" battery management used by XP laptops and the like should be shot.

Enough griping I guess.



0コメント

  • 1000 / 1000