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| = IPMI Setup for Remote Access and Fencing = | | = IPMI Setup for Remote Access and Fencing = |
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| '''Note''': This applies to CentOS 5.x and is copied from another document. It needs serious cleanup.
| | Please see the [[AN!Cluster_Tutorial_2#What_is_IPMI|IPMI]] section of the [[AN!Cluster Tutorial 2]]. That section carefully walks through the configuration of IPMI on [[EL6]]. |
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| Install IPMI:
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| <source lang="bash">
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| yum install freeipmi.x86_64 freeipmi-bmc-watchdog freeipmi-ipmidetectd OpenIPMI.x86_64 OpenIPMI-libs.x86_64 OpenIPMI-perl.x86_64 OpenIPMI-tools.x86_64
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| chkconfig ipmi on
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| /etc/init.d/ipmi start
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| </source>
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| You can check that IPMI is working now by running:
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| '''ipmitool chassis status'''
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| <source lang="text">
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| System Power : on
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| Power Overload : false
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| Power Interlock : inactive
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| Main Power Fault : false
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| Power Control Fault : false
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| Power Restore Policy : always-off
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| Last Power Event :
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| Chassis Intrusion : inactive
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| Front-Panel Lockout : inactive
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| Drive Fault : false
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| Cooling/Fan Fault : false
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| </source>
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| Now setup the IPMI BMC.
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| '''Node1''':
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| <source lang="bash">
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| ipmitool -I open lan set 1 macaddr 00:22:15:d6:32:a8
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| ipmitool -I open lan set 1 ipsrc static
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| ipmitool -I open lan set 1 ipaddr 10.255.135.12
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| ipmitool -I open lan set 1 defgw ipaddr 10.255.255.254
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| ipmitool -I open lan set 1 netmask 255.255.0.0
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| ipmitool -I open lan set 1 password secret
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| ipmitool -I open user set password 2 secret
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| ipmitool -I open lan set 1 snmp iplink
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| ipmitool -I open lan set 1 access on
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| ipmitool mc reset cold
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| sleep 5
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| ipmitool -I open lan print 1
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| </source>
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| '''node2''':
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| <source lang="bash">
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| ipmitool -I open lan set 1 macaddr 00:22:15:d6:32:a9
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| ipmitool -I open lan set 1 ipsrc static
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| ipmitool -I open lan set 1 ipaddr 10.255.135.13
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| ipmitool -I open lan set 1 defgw ipaddr 10.255.255.254
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| ipmitool -I open lan set 1 netmask 255.255.0.0
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| ipmitool -I open lan set 1 password secret
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| ipmitool -I open user set password 2 secret
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| ipmitool -I open lan set 1 snmp iplink
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| ipmitool -I open lan set 1 access on
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| ipmitool mc reset cold
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| sleep 5
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| ipmitool -I open lan print 1
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| </source>
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| Both should finish showing something like:
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| <source lang="text">
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| Set in Progress : Set Complete
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| Auth Type Support : NONE MD2 MD5 PASSWORD
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| Auth Type Enable : Callback : NONE MD2 MD5 PASSWORD
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| : User : NONE MD2 MD5 PASSWORD
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| : Operator : NONE MD2 MD5 PASSWORD
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| : Admin : NONE MD2 MD5 PASSWORD
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| : OEM : NONE MD2 MD5 PASSWORD
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| IP Address Source : DHCP Address
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| IP Address : 10.255.135.12
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| Subnet Mask : 255.255.0.0
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| MAC Address : 00:22:15:d6:32:a8
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| SNMP Community String : iplink
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| IP Header : TTL=0x40 Flags=0x40 Precedence=0x00 TOS=0x10
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| BMC ARP Control : ARP Responses Enabled, Gratuitous ARP Disabled
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| Gratituous ARP Intrvl : 2.0 seconds
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| Default Gateway IP : 10.255.255.254
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| Default Gateway MAC : 00:00:00:00:00:00
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| Backup Gateway IP : 0.0.0.0
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| Backup Gateway MAC : 00:00:00:00:00:00
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| RMCP+ Cipher Suites : 0,1,2,3,6,7,8
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| Cipher Suite Priv Max : uaaaXXaaaXXXXXX
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| : X=Cipher Suite Unused
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| : c=CALLBACK
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| : u=USER
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| : o=OPERATOR
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| : a=ADMIN
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| : O=OEM
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| </source>
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| Now test access to both machines from a remote workstation in the Interlink office by calling:
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| <source lang="bash">
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| digimer@lework:~$ ipmitool -I lan -H 10.255.135.12 -U admin -P secret chassis power status
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| Chassis Power is on
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| digimer@lework:~$ ipmitool -I lan -H 10.255.135.13 -U admin -P secret chassis power status
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| Chassis Power is on
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| </source>
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| If you don't see: '''Chassis Power is on''' for both, something has gone wrong.
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| Now to reboot or power off a given server, you can call either:
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| <source lang="bash">
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| # Reboot node1
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| ipmitool -I lan -H 10.255.135.12 -U admin -P secret chassis power cycle
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| # or Power off node2
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| ipmitool -I lan -H 10.255.135.13 -U admin -P secret chassis power off
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| </source>
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| Done! That command above also doubles as the fence command
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