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NEW-GENERATION SERVER TECHNOLOGYmanaged server. The DRAC 4 must be connected to the network,and the administrator must have login privileges to access and login to the DRAC 4.On a bare-metal server, there are several ways to configure thenetwork settings for the DRAC 4. These settings should be configuredonce, when the server is first provisioned. 2 If the OS is beingredeployed on a previously configured system, administrators canskip the steps discussed in the next two sections.Setting up network connectivity using option ROMTo use option ROM to configure the DRAC 4 network settings, administratorsshould perform the following steps:1. Reboot the system. During the power-on self-test (POST)press Ctrl+D within five seconds of the time the DRAC 4banner is displayed.2. When the Setup screen appears, make changes in the networksettings—such as enabling or disabling DynamicHost Configuration Protocol (DHCP)—and edit the static IPaddress, subnet mask, gateway, Domain Name System (DNS),and Ethernet configuration options. Be sure that the DRAC 4network interface card (NIC) setting is enabled.3. Press R to save the changes and reboot the DRAC 4.Using option ROM requires administrators to perform the configurationtask locally. Dell provides a mechanism known as consoleredirection to remotely configure the DRAC 4 as explained in thenext section.Setting up network connectivity using BIOS serial console redirectionMany organizations use special-purpose serial concentrators to provideremote access to their server systems. These concentratorsgenerally take input from a serial port and make this port availableover the network using a Telnet connection, a Web interface, or asecure protocol such as Secure Shell (SSH). The Dell PowerEdgeserver BIOS has a feature that allows administrators to connect theserial port to one of these concentrator devices and to access BIOSfunctionality through the serial port. Administrators can use thisfeature to remotely set up network connectivity for the DRAC 4 byperforming the following steps:1. Connect the serial port of the server to the serial concentratorand power up the system.2. Access the serial concentrator according to the manufacturer’sdirections on how to access that particular model.3. Configure the DRAC 4 network settings as described in theprevious section.Figure 1. Console Redirection page of the DRAC 4 Web-based interfaceConfiguration of the DRAC 4After the network settings have been configured on the DRAC 4,administrators must configure DRAC 4 console redirection and virtualmedia support. Only after these steps have been accomplished canadministrators launch DSA to complete the remote OS installation.These steps must be performed each time administrators want toconnect to the server.Configuring the DRAC 4 console redirection featureThe DRAC 4 console redirection feature allows administrators tomanage a system remotely in either graphical or text mode. Usingthe console redirection feature, the remote system can be operatedby using the keyboard, video, and mouse on the local managementstation to control the corresponding devices on a remote system.To use the console redirection feature, all browsers must havethe supported Java Virtual Machine (JVM) plug-in (version 1.4.2 orlater) installed. If using a Microsoft Windows OS–based managementstation, administrators should clear and disable the Java cachefrom the Java plug-in control panel.To open a console redirection session, administrators shouldperform the following steps:1. Connect and log in to the DRAC 4 Web-based interface in aWeb browser on the management station by typing the IPaddress of the DRAC 4 in the browser address bar.2. After logging in to the interface, click “Console” in the leftpane to open the Console Redirection page (see Figure 1).The number of available console redirection sessions for theremote system will appear on the Console Redirection page.2For additional ways to configure DRAC 4 network settings, refer to the Dell Remote Access Controller 4 User’s Guide at support.dell.com/support/edocs/software/smdrac3/drac4/en/ug/racugc2.htm.38POWER SOLUTIONS Reprinted from Dell Power Solutions, February 2005. Copyright © 2005 Dell Inc. All rights reserved. February 2005
NEW-GENERATION SERVER TECHNOLOGYThe DRAC 4 supports a maximum of two concurrent consoleredirection sessions.3. Open a new console by clicking “Open Console” at thebottom of the Console Redirection page.4. Click “Yes” to accept the remote access controller (RAC) Websecurity certificate.Configuring the DRAC 4 virtual media featureThe DRAC 4 virtual media feature allows CD or floppy disk drivesto be used on the management station as if they were connecteddirectly to the managed server. Using this feature, administrators canremotely install new operating systems, install applications, or updatedrivers from virtual CD or virtual floppy disk drives.On a Microsoft Windows management station, MicrosoftInternet Explorer must be used as the browser for the virtual mediafeature. Browser security must be set to the medium or low settingto enable the browser to download and install signed MicrosoftActiveX ® controls. Administrator rights are required to install theActiveX control plug-in for the browser. On Red Hat EnterpriseLinux management stations, write permission is required to installthe plug-in for the Mozilla and Netscape browsers.Figure 2 shows the Virtual Media page of the DRAC 4 Web-basedinterface. The following steps can be used to set up the virtual mediafeature from the management station:1. Connect and log in to the DRAC 4 from a Web browser onthe management station. To use the virtual media feature toconnect or disconnect virtual media, log in to the DRAC 4 asa user with Access Virtual Media permission.2. After logging in to the interface, click “Media” in the leftpane to open the Virtual Media page (see Figure 2). Aprompt to install the virtual media plug-in will display if thevirtual media feature is being run for the first time at themanagement station.3. View the current status in the Attribute field. If the associatedValue field displays “Connected,” deselect the relevant radiobuttons to disconnect the virtual floppy disk image, virtualfloppy disk drive, or virtual CD drive before reconnecting tothe desired drives.4. Select a physical CD or floppy disk drive to virtualize, andclick “Connect” at the bottom of the Virtual Media page.The virtual floppy disk can be connected to a maximumof one available 1.44-inch virtual floppy disk image,1.44-inch virtual floppy disk drive, or Universal SerialBus (USB) key. The virtual CD can be connected to exactlyone local CD drive.5. After clicking “Connect,” access any selected drives on themanaged server’s console as though they were physicaldrives on that server.Remote deployment of an operating systemOnce the virtual media and console redirection features are properlyconfigured for the DRAC 4 on an eighth-generation Dell PowerEdgeserver, administrators can launch and optimize the OS installation usingthe Dell OpenManage Server Assistant CD. DSA helps to streamline OSinstallation and reduce the attended time needed to install supportedoperating systems on a server. Each Dell PowerEdge server is sold witha copy of the Dell OpenManage Server Assistant CD that will operate onthat server. If attempting to use DSA on additional PowerEdge servers,carefully check the CD label for the list of supported servers.The following steps start the installation of an OS through theDRAC 4 using the Dell OpenManage Server Assistant CD. Note:The list of operating systems supported for installation on an individualserver is based on the model of the server. Operating systemsthat can be installed using virtual media include MicrosoftWindows 2000 Server with Service Pack 4 (SP4), MicrosoftWindows Server 2003, Red Hat Enterprise Linux 2.1, and Red HatEnterprise Linux 3. Installation of Novell NetWare operating systemsthrough virtual media is not supported on eighth-generation DellPowerEdge servers.1. Follow the steps in the “Configuring the DRAC 4 virtualmedia feature” section in this article to connect the localphysical CD drive to a virtual CD drive.2. Insert a supported version of the Dell OpenManage ServerAssistant CD into the virtualized CD drive at the managementstation.3. As described in the “Configuring the DRAC 4 console redirectionfeature” section in this article, open a console redirectionsession to monitor and perform the OS installation process.Figure 2. Virtual Media page of the DRAC 4 Web-based interfacewww.dell.com/powersolutions Reprinted from Dell Power Solutions, February 2005. Copyright © 2005 Dell Inc. All rights reserved. POWER SOLUTIONS 39
Page 1 and 2: DELL POWER SOLUTIONS • FEBRUARY 2
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