Power Management is a characteristic of electrical appliances, like computer, that switches your system to low-power state or turns off the power when inactive. There are different power management standards available that automatically performs this task for your computer.
Currently there are two most popular standards for offering power management: ACPI (Advanced Configuration and Power Interface) and APM (Advanced Power Management). You can use either of them for your computer. Both can not be used concurrently.
ACPI is an open standard for power management and unified operating system centric machine configuration. It describes platform-independent interface for power management, monitoring, configuration and hardware discovery. It is central to OSPM (Operating System-directed configuration and Power Management).
APM is an API (Application Programming Interface) developed by Microsoft and Intel that enables the operating system to work with BIOS (Basic Input/Output System) to achieve the power management. It uses layered approach for managing devices.
Before using any of these power management standards, you should consider that which is best for you? For example, if you are using a Linux computer and you have relatively recent kernel (later than 2.4.20) and aren’t anxious by the kernel builds and patching the source code, you would find great flexibility with ACPI.
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If you simply like to enable general power management or you are using an older Linux machine, you can go for APM. It is necessary that your computer’s BIOS must support power management system you want to use.
If your Linux computer does not completely support any of these power management standards, some power management options may crash your system and result into catastrophic data loss.
At this point of time, instead of getting benefited, you fall in grave situations. Here you need to carry out Linux Data Recovery to get your data back. Linux Data Recovery is an easy job using third party Linux Recovery software.
Stellar Phoenix Linux Data Recovery is the best ever made and the most productive Linux Recovery tool. It supports Linux Data Recovery from Ext2, Ext3 and ReiserFS file system volumes. Phoenix Linux Recovery is compatible with most of the Linux distributions.
