If you have a drac, it should either be visible with the OpenManage interface, commands, or as a 10/100 port on the far left of the back of the server; and also should give you a setup screen during bootup. If you don't have one though, you can still use ipmi fencing to the on-board BMC/ESM card. We've found the only real drawback to this is that sometimes the ipmi fencing may have difficulty communicating to a locked up host or a host which has kernel panic'd. The drac is better though, as it allows for ssh and full power-off/power-on functionality. Also, if your drac is a drac5 and has firmware greater than 1.20 on it (such as 1.33), you'll need to use the fence_drac5 module which is included but not fully documented.
On Tue, Aug 11, 2009 at 11:39 AM, <[email protected]> wrote: > > > In the message dated: Tue, 11 Aug 2009 14:14:03 +0200, > The pithy ruminations from Juan Ramon Martin Blanco on > <Re: [Linux-cluster] do I have a fence DRAC device?> were: > => --===============1917368601== > => Content-Type: multipart/alternative; > boundary=0016364c7c07663f600470dca3b8 > => > => --0016364c7c07663f600470dca3b8 > => Content-Type: text/plain; charset=ISO-8859-1 > => Content-Transfer-Encoding: quoted-printable > => > => On Tue, Aug 11, 2009 at 2:03 PM, ESGLinux <[email protected]> wrote: > => > => > Thanks > => > I=B4ll check it when I could reboot the server. > => > > => > greetings, > => > > => You have a BMC ipmi in the first network interface, it can be configured > at > => boot time (I don't remember if inside the BIOS or pressing > cntrl+something > => during boot) > => > > Based on my notes, here's how I configured the DRAC interface on a Dell > 1950 > for use as a fence device: > > Configuring the card from Linux depending on the installation of > Dell's > OMSA package. Once that's installed, use the following > commands: > > racadm config -g cfgSerial -o cfgSerialTelnetEnable 1 > racadm config -g cfgLanNetworking -o cfgDNSRacName > HOSTNAME_FOR_INTERFACE > racadm config -g cfgDNSDomainName DOMAINNAME_FOR_INTERFACE > racadm config -g cfgUserAdmin -o cfgUserAdminPassword -i 2 > PASSWORD > racadm config -g cfgNicEnable 1 > racadm config -g cfgNicIpAddress WWW.XXX.YYY.ZZZ > racadm config -g cfgNicNetmask WWW.XXX.YYY.ZZZ > racadm config -g cfgNicGateway WWW.XXX.YYY.ZZZ > racadm config -g cfgNicUseDhcp 0 > > > I also save a backup of the configuration with: > > racadm getconfig -f ~/drac_config > > > Hope this helps, > > Mark > > ---- > Mark Bergman voice: 215-662-7310 > [email protected] fax: 215-614-0266 > System Administrator Section of Biomedical Image Analysis > Department of Radiology University of Pennsylvania > PGP Key: https://www.rad.upenn.edu/sbia/bergman > > > => Greetings, > => Juanra > => > => > > => > ESG > => > > => > 2009/8/10 Paras pradhan <[email protected]> > => > > => > On Mon, Aug 10, 2009 at 5:24 AM, ESGLinux<[email protected]> wrote: > => >> > Hi all, > => >> > I was designing a 2 node cluster and I was going to use 2 servers > DELL > => >> > PowerEdge 1950. I was going to buy a DRAC card to use for fencing > but > => >> > running several commands in the servers I have noticed that when I > run > => >> this > => >> > command: > => >> > #ipmitool lan print > => >> > Set in Progress : Set Complete > => >> > Auth Type Support : NONE MD2 MD5 PASSWORD > => >> > Auth Type Enable : Callback : MD2 MD5 > => >> > : User : MD2 MD5 > => >> > : Operator : MD2 MD5 > => >> > : Admin : MD2 MD5 > => >> > : OEM : MD2 MD5 > => >> > IP Address Source : Static Address > => >> > IP Address : 0.0.0.0 > => >> > Subnet Mask : 0.0.0.0 > => >> > MAC Address : 00:1e:c9:ae:6f:7e > => >> > SNMP Community String : public > => >> > IP Header : TTL=0x40 Flags=0x40 Precedence=0x00 TOS=0x10 > => >> > Default Gateway IP : 0.0.0.0 > => >> > Default Gateway MAC : 00:00:00:00:00:00 > => >> > Backup Gateway IP : 0.0.0.0 > => >> > Backup Gateway MAC : 00:00:00:00:00:00 > => >> > 802.1q VLAN ID : Disabled > => >> > 802.1q VLAN Priority : 0 > => >> > RMCP+ Cipher Suites : 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14 > => >> > Cipher Suite Priv Max : aaaaaaaaaaaaaaa > => >> > : X=Cipher Suite Unused > => >> > : c=CALLBACK > => >> > : u=USER > => >> > : o=OPERATOR > => >> > : a=ADMIN > => >> > : O=OEM > => >> > does this mean that I already have an ipmi card (not configured) > that > => I > => >> can > => >> > use for fencing? if the anwser is yes, where hell must I configure > it? > => I > => >> > don=B4t see wher can I do it. > => >> > If I haven=B4t a fencing device which one do you recommed to use? > => >> > Thanks in advance > => >> > ESG > => >> > > => >> > -- > => >> > Linux-cluster mailing list > => >> > [email protected] > => >> > https://www.redhat.com/mailman/listinfo/linux-cluster > => >> > > => >> > => >> Yes you have IPMI and if you are using 1950 Dell, DRAC should be > there > => >> too. You can see if you have DRAC or not when the server starts and > => >> before the loading of the OS. > => >> > => >> I have 1850s and I am using DRAC for fencing. > => >> > => >> > => >> Paras. > => >> > => >> -- > => >> Linux-cluster mailing list > => >> [email protected] > => >> https://www.redhat.com/mailman/listinfo/linux-cluster > => >> > => > > => > > > > > -- > Linux-cluster mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/linux-cluster >
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