Dimmer Switch Feature; Uefi 2.0 Support - Lenovo ThinkServer RD240 Software User's Manual

1.5

Dimmer Switch Feature

1.6

UEFI 2.0 Support

automatically copying data from a drive with potential to fail to a
designated hot spare or newly inserted drive. Because SSDs are very
reliable, non-redundant RAID 0 configurations are much more common
than in the past. SSD Guard offers added data protection for RAID 0
configurations.
SSD Guard works by looking for a predictive failure while monitoring the
SDD S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology)
error log. If errors indicate a SSD failure is imminent, MegaRAID starts
a rebuild to preserve the data on the SSD and sends appropriate warning
event notifications.
Powering and cooling drives represents a major cost for data centers.
The new MegaRAID Dimmer™ Switch reduces the power consumption
of the devices connected to a MegaRAID controller. This helps to share
resources more efficiently and lower costs.
With Dimmer Switch, any unconfigured drive connected to a MegaRAID
controller is spun down after 30 minutes of inactivity, reducing its power
usage. Spun down drives are spun up automatically when you create a
configuration using those drives.
Significant challenges face operating system and platform developers to
innovate using the legacy PC-AT BIOS boot environment. These include
memory constraints, maintenance challenges, and increased
complexities due to a lack of industry-wide standards.
To handle these challenges, the Unified Extensible Firmware Interface
(UEFI) was developed to do the following:
•
Define a clean interface between operating systems and the
hardware platform at boot time.
•
Support an architecture-independent mechanism for initializing
add-in cards.
Dimmer Switch Feature 1-5