THE PERFORMANCE OF MULTIPLE CHANNEL SYSTEMS. A Configuration Approach

The scheme used to encode the timeout period is a bit convoluted (it is described in detail on the manpage for hdparm ), but 0 means that spin-down is disabled, and a value from 1 to 240 sets the idle timeout in multiples of 5 seconds (5 seconds to 20 minutes). The value of 6 used here indicates a 30-second idle timeout. 3.1.3.2. ...turning the computer on and off (or hibernating and resuming) at certain times automatically? Some important operations are best performed when a system is not in normal use, such as backup, software updating, and data indexing. It's not necessary to keep a system running 24x7 in order to schedule nighttime tasks. Most modern system BIOSes contain an alarm wake feature, which causes the system to turn on at a preset time. This feature can be used with the hibernate state or a full system shutdown to automate nocturnal activities. The BIOS configuration utility varies from system to system; consult your system or motherboard documentation.В  Some BIOS versions permit the wake time to be set through ACPI ...»