DRAC 4 Overview 21DRAC 4 OverviewThe Dell™ Remote Access Controller 4 (DRAC 4) is a systems management hardware andsoftware solution designed to provide remote management capabilities, crashed system recovery,and power control functions for Dell PowerEdge™ systems.By communicating with the system’s baseboard management controller (BMC), the DRAC 4can be configured to send you email alerts for warnings or errors related to voltages,temperatures, and fan speeds. The DRAC 4 also logs event data and the most recent crashscreen (for systems running the Microsoft® Windows® operating system only) to help youdiagnose the probable cause of a system crash.Depending on your system, the DRAC 4 hardware is either a daughter card (DRAC 4/I) or ahalf-length PCI card (DRAC 4/P). The DRAC 4/I and DRAC 4/P are identical except for thehardware differences (see "DRAC 4 Hardware Features").The DRAC 4 has its own microprocessor and memory, and is powered by the system in which itis installed. The DRAC 4 may be preinstalled on your system, or available separately in a kit.To get started with the DRAC 4, see "Installing and Setting Up the DRAC 4."What’s New in DRAC 4 in this Release?For this release, DRAC 4 firmware version 1.30 supports the following:• Secure Shell (SSH). For more information, see "Using the Secure Shell (SSH)."• History buffer. For more information, see "Starting a Text Console."• racadm vmdisconnect. For more information, see "vmdisconnect."• ISO image support for Virtual Media• Remote operating system deployment using the VM-CLI utility. See "Operating SystemDeployment Using the DRAC 4 Virtual Media CLI Feature."• A new object named cfgVirtualBootOnce has been added to the Virtual Mediaconfiguration group "cfgRacVirtual." See "cfgVirtualBootOnce (Read/Write)."