Appendix A. Fence Device Parameters This appendix provides tables with parameter descriptions of fence devices. You can configure the parameters with luci , by using the ccs command, or by editing the etc/cluster/cluster.conf file. For a comprehensive list and description of the fence device parameters for each fence agent, see the man page for that agent. Note The Name parameter for a fence device specifies an arbitrary name for the device that will be used by Red Hat High Availability Add-On. This is not the same as the DNS name for the device. Note Certain fence devices have an optional Password Script parameter. The Password Script parameter allows you to specify that a fence-device password is supplied from a script rather than from the Password parameter. Using the Password Script parameter supersedes the Password parameter, allowing passwords to not be visible in the cluster configuration file ( /etc/cluster/cluster.conf ). Table A.1, "Fence Device Summary" lists the fence devices, the fence device agents associated with the fence devices, and provides a reference to the table documenting the parameters for the fence devices. Table A.1. Fence Device Summary Fence Device Fence Agent Reference to Parameter Description APC Power Switch (telnet/SSH) fence_apc Table A.2, "APC Power Switch (telnet/SSH)" APC Power Switch over SNMP fence_apc_snmp Table A.3, "APC Power Switch over SNMP" Brocade Fabric Switch fence_brocade Table A.4, "Brocade Fabric Switch" Cisco MDS fence_cisco_mds Table A.5, "Cisco MDS" Cisco UCS fence_cisco_ucs Table A.6, "Cisco UCS" Dell DRAC 5 fence_drac5 Table A.7, "Dell DRAC 5" Dell iDRAC fence_idrac Table A.25, "IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4" Eaton Network Power Switch (SNMP Interface) fence_eaton_snmp Table A.8, "Eaton Network Power Controller (SNMP Interface) (Red Hat Enterprise Linux 6.4 and later)" Egenera BladeFrame fence_egenera Table A.9, "Egenera BladeFrame" Emerson Network Power Switch (SNMP Interface) fence_emerson Table A.10, "Emerson Network Power Switch (SNMP interface) (Red Hat Enterprise LInux 6.7 and later) " ePowerSwitch fence_eps Table A.11, "ePowerSwitch" Fence virt (Serial/VMChannel Mode) fence_virt Table A.12, "Fence virt (Serial/VMChannel Mode)" Fence virt (fence_xvm/Multicast Mode) fence_xvm Table A.13, "Fence virt (fence_xvm/Multicast Mode) " Fujitsu Siemens Remoteview Service Board (RSB) fence_rsb Table A.14, "Fujitsu Siemens Remoteview Service Board (RSB)" HP BladeSystem fence_hpblade Table A.15, "HP BladeSystem (Red Hat Enterprise Linux 6.4 and later)" HP iLO Device fence_ilo Table A.16, "HP iLO and HP iLO2" HP iLO over SSH Device fence_ilo_ssh Table A.17, "HP iLO over SSH, HP iLO3 over SSH, HPiLO4 over SSH (Red Hat Enterprise Linux 6.7 and later)" HP iLO2 Device fence_ilo2 Table A.16, "HP iLO and HP iLO2" HP iLO3 Device fence_ilo3 Table A.25, "IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4" HP iLO3 over SSH Device fence_ilo3_ssh Table A.17, "HP iLO over SSH, HP iLO3 over SSH, HPiLO4 over SSH (Red Hat Enterprise Linux 6.7 and later)" HP iLO4 Device fence_ilo4 Table A.25, "IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4" HP iLO4 over SSH Device fence_ilo4_ssh Table A.17, "HP iLO over SSH, HP iLO3 over SSH, HPiLO4 over SSH (Red Hat Enterprise Linux 6.7 and later)" HP iLO MP fence_ilo_mp Table A.18, "HP iLO MP" HP Moonshot iLO fence_ilo_moonshot Table A.19, "HP Moonshot iLO (Red Hat Enterprise Linux 6.7 and later)" IBM BladeCenter fence_bladecenter Table A.20, "IBM BladeCenter" IBM BladeCenter SNMP fence_ibmblade Table A.21, "IBM BladeCenter SNMP" IBM Integrated Management Module fence_imm Table A.25, "IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4" IBM iPDU fence_ipdu Table A.22, "IBM iPDU (Red Hat Enterprise Linux 6.4 and later)" IF MIB fence_ifmib Table A.23, "IF MIB" Intel Modular fence_intelmodular Table A.24, "Intel Modular" IPMI (Intelligent Platform Management Interface) Lan fence_ipmilan Table A.25, "IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4" Fence kdump fence_kdump Table A.26, "Fence kdump" Multipath Persistent Reservation Fencing fence_mpath Table A.27, "Multipath Persistent Reservation Fencing (Red Hat Enterprise Linux 6.7 and later)" RHEV-M fencing fence_rhevm Table A.28, "RHEV-M fencing (RHEL 6.2 and later against RHEV 3.0 and later)" SCSI Fencing fence_scsi Table A.29, "SCSI Reservation Fencing" VMware Fencing (SOAP Interface) fence_vmware_soap Table A.30, "VMware Fencing (SOAP Interface) (Red Hat Enterprise Linux 6.2 and later)" WTI Power Switch fence_wti Table A.31, "WTI Power Switch" Table A.2, "APC Power Switch (telnet/SSH)" lists the fence device parameters used by fence_apc , the fence agent for APC over telnet/SSH. Table A.2. APC Power Switch (telnet/SSH) luci Field cluster.conf Attribute Description Name name A name for the APC device connected to the cluster into which the fence daemon logs by means of telnet/ssh. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP Port (optional) ipport The TCP port to use to connect to the device. The default port is 23, or 22 if Use SSH is selected. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port port The port. Switch (optional) switch The switch number for the APC switch that connects to the node when you have multiple daisy-chained switches. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Use SSH secure Indicates that system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The identity file for SSH. Table A.3, "APC Power Switch over SNMP" lists the fence device parameters used by fence_apc_snmp , the fence agent for APC that logs into the SNP device by means of the SNMP protocol. Table A.3. APC Power Switch over SNMP luci Field cluster.conf Attribute Description Name name A name for the APC device connected to the cluster into which the fence daemon logs by means of the SNMP protocol. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP port udpport The UDP/TCP port to use for connection with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string; the default value is private . SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP Privacy Protocol Password snmp_priv_passwd The SNMP privacy protocol password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port The port. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.4, "Brocade Fabric Switch" lists the fence device parameters used by fence_brocade , the fence agent for Brocade FC switches. Table A.4. Brocade Fabric Switch luci Field cluster.conf Attribute Description Name name A name for the Brocade device connected to the cluster. IP Address or Hostname ipaddr The IP address assigned to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Force IP Family inet4_only, inet6_only Force the agent to use IPv4 or IPv6 addresses only Force Command Prompt cmd_prompt The command prompt to use. The default value is '\USD'. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port port The switch outlet number. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The identity file for SSH. Unfencing unfence section of the cluster configuration file When enabled, this ensures that a fenced node is not re-enabled until the node has been rebooted. This is necessary for non-power fence methods (that is, SAN/storage fencing). When you configure a device that requires unfencing, the cluster must first be stopped and the full configuration including devices and unfencing must be added before the cluster is started. For more information about unfencing a node, see the fence_node (8) man page. For information about configuring unfencing in the cluster configuration file, see Section 8.3, "Configuring Fencing" . For information about configuring unfencing with the ccs command, see Section 6.7.2, "Configuring a Single Storage-Based Fence Device for a Node" . Table A.5, "Cisco MDS" lists the fence device parameters used by fence_cisco_mds , the fence agent for Cisco MDS. Table A.5. Cisco MDS luci Field cluster.conf Attribute Description Name name A name for the Cisco MDS 9000 series device with SNMP enabled. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP port (optional) udpport The UDP/TCP port to use for connection with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3). SNMP Community community The SNMP community string. SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP Privacy Protocol Password snmp_priv_passwd The SNMP privacy protocol password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port The port. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.6, "Cisco UCS" lists the fence device parameters used by fence_cisco_ucs , the fence agent for Cisco UCS. Table A.6. Cisco UCS luci Field cluster.conf Attribute Description Name name A name for the Cisco UCS device. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP port (optional) ipport The TCP port to use to connect to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSL ssl Use SSL connections to communicate with the device. Sub-Organization suborg Additional path needed to access suborganization. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.7, "Dell DRAC 5" lists the fence device parameters used by fence_drac5 , the fence agent for Dell DRAC 5. Table A.7. Dell DRAC 5 luci Field cluster.conf Attribute Description Name name The name assigned to the DRAC. IP Address or Hostname ipaddr The IP address or host name assigned to the DRAC. IP Port (optional) ipport The TCP port to use to connect to the device. Login login The login name used to access the DRAC. Password passwd The password used to authenticate the connection to the DRAC. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The identity file for SSH. Module Name module_name (optional) The module name for the DRAC when you have multiple DRAC modules. Force Command Prompt cmd_prompt The command prompt to use. The default value is '\USD'. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Delay (seconds) delay The number of seconds to wait before fencing is started. The default value is 0. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Table A.8, "Eaton Network Power Controller (SNMP Interface) (Red Hat Enterprise Linux 6.4 and later)" lists the fence device parameters used by fence_eaton_snmp , the fence agent for the Eaton over SNMP network power switch. Table A.8. Eaton Network Power Controller (SNMP Interface) (Red Hat Enterprise Linux 6.4 and later) luci Field cluster.conf Attribute Description Name name A name for the Eaton network power switch connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP Port (optional) udpport The UDP/TCP port to use for connection with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string; the default value is private . SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP Privacy Protocol Password snmp_priv_passwd The SNMP privacy protocol password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. This parameter is always required. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.9, "Egenera BladeFrame" lists the fence device parameters used by fence_egenera , the fence agent for the Egenera BladeFrame. Table A.9. Egenera BladeFrame luci Field cluster.conf Attribute Description Name name A name for the Egenera BladeFrame device connected to the cluster. CServer cserver The host name (and optionally the user name in the form of username@hostname ) assigned to the device. Refer to the fence_egenera (8) man page for more information. ESH Path (optional) esh The path to the esh command on the cserver (default is /opt/panmgr/bin/esh) Username user The login name. The default value is root . lpan lpan The logical process area network (LPAN) of the device. pserver pserver The processing blade (pserver) name of the device. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Unfencing unfence section of the cluster configuration file When enabled, this ensures that a fenced node is not re-enabled until the node has been rebooted. This is necessary for non-power fence methods (that is, SAN/storage fencing). When you configure a device that requires unfencing, the cluster must first be stopped and the full configuration including devices and unfencing must be added before the cluster is started. For more information about unfencing a node, see the fence_node (8) man page. For information about configuring unfencing in the cluster configuration file, see Section 8.3, "Configuring Fencing" . For information about configuring unfencing with the ccs command, see Section 6.7.2, "Configuring a Single Storage-Based Fence Device for a Node" . Table A.10, "Emerson Network Power Switch (SNMP interface) (Red Hat Enterprise LInux 6.7 and later) " lists the fence device parameters used by fence_emerson , the fence agent for Emerson over SNMP. Table A.10. Emerson Network Power Switch (SNMP interface) (Red Hat Enterprise LInux 6.7 and later) luci Field cluster.conf Attribute Description Name name A name for the Emerson Network Power Switch device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP Port (optional) udpport UDP/TCP port to use for connections with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string. SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP privacy protocol password snmp_priv_passwd The SNMP Privacy Protocol Password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.11, "ePowerSwitch" lists the fence device parameters used by fence_eps , the fence agent for ePowerSwitch. Table A.11. ePowerSwitch luci Field cluster.conf Attribute Description Name name A name for the ePowerSwitch device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Name of Hidden Page hidden_page The name of the hidden page for the device. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.12, "Fence virt (Serial/VMChannel Mode)" lists the fence device parameters used by fence_virt , the fence agent for virtual machines using VM channel or serial mode . Table A.12. Fence virt (Serial/VMChannel Mode) luci Field cluster.conf Attribute Description Name name A name for the Fence virt fence device. Serial Device serial_device On the host, the serial device must be mapped in each domain's configuration file. For more information, see the fence_virt man page. If this field is specified, it causes the fence_virt fencing agent to operate in serial mode. Not specifying a value causes the fence_virt fencing agent to operate in VM channel mode. Serial Parameters serial_params The serial parameters. The default is 115200, 8N1. VM Channel IP Address channel_address The channel IP. The default value is 10.0.2.179. Timeout (optional) timeout Fencing timeout, in seconds. The default value is 30. Domain port (formerly domain ) Virtual machine (domain UUID or name) to fence. ipport The channel port. The default value is 1229, which is the value used when configuring this fence device with luci . Delay (optional) delay Fencing delay, in seconds. The fence agent will wait the specified number of seconds before attempting a fencing operation. The default value is 0. Table A.13, "Fence virt (fence_xvm/Multicast Mode) " lists the fence device parameters used by fence_xvm , the fence agent for virtual machines using multicast. Table A.13. Fence virt (fence_xvm/Multicast Mode) luci Field cluster.conf Attribute Description Name name A name for the Fence virt fence device. Timeout (optional) timeout Fencing timeout, in seconds. The default value is 30. Domain port (formerly domain ) Virtual machine (domain UUID or name) to fence. Delay (optional) delay Fencing delay, in seconds. The fence agent will wait the specified number of seconds before attempting a fencing operation. The default value is 0. Table A.14, "Fujitsu Siemens Remoteview Service Board (RSB)" lists the fence device parameters used by fence_rsb , the fence agent for Fujitsu-Siemens RSB. Table A.14. Fujitsu Siemens Remoteview Service Board (RSB) luci Field cluster.conf Attribute Description Name name A name for the RSB to use as a fence device. IP Address or Hostname ipaddr The host name assigned to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. Path to SSH Identity File identity_file The Identity file for SSH. TCP Port ipport The port number on which the telnet service listens. The default value is 3172. Force Command Prompt cmd_prompt The command prompt to use. The default value is '\USD'. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Delay (seconds) delay The number of seconds to wait before fencing is started. The default value is 0. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Table A.15, "HP BladeSystem (Red Hat Enterprise Linux 6.4 and later)" lists the fence device parameters used by fence_hpblade , the fence agent for HP BladeSystem. Table A.15. HP BladeSystem (Red Hat Enterprise Linux 6.4 and later) luci Field cluster.conf Attribute Description Name name The name assigned to the HP Bladesystem device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the HP BladeSystem device. IP Port (optional) ipport The TCP port to use to connect to the device. Login login The login name used to access the HP BladeSystem device. This parameter is required. Password passwd The password used to authenticate the connection to the fence device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Force Command Prompt cmd_prompt The command prompt to use. The default value is '\USD'. Missing port returns OFF instead of failure missing_as_off Missing port returns OFF instead of failure. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The identity file for SSH. The fence agents for HP iLO devices ( fence_ilo and) HP iLO2 devices ( fence_ilo2 ) share the same implementation. Table A.16, "HP iLO and HP iLO2" lists the fence device parameters used by these agents. Table A.16. HP iLO and HP iLO2 luci Field cluster.conf Attribute Description Name name A name for the server with HP iLO support. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP Port (optional) ipport TCP port to use for connection with the device. The default value is 443. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Delay (seconds) delay The number of seconds to wait before fencing is started. The default value is 0. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. The fence agents for HP iLO devices over SSH ( fence_ilo_ssh ), HP iLO3 devices over SSH ( fence_ilo3_ssh ), and HP iLO4 devices over SSH ( fence_ilo4_ssh ) share the same implementation. Table A.17, "HP iLO over SSH, HP iLO3 over SSH, HPiLO4 over SSH (Red Hat Enterprise Linux 6.7 and later)" lists the fence device parameters used by these agents. Table A.17. HP iLO over SSH, HP iLO3 over SSH, HPiLO4 over SSH (Red Hat Enterprise Linux 6.7 and later) luci Field cluster.conf Attribute Description Name name A name for the server with HP iLO support. IP Address or Hostname ipaddr The IP address or host name assigned to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. Path to SSH Identity File identity_file The Identity file for SSH. TCP Port ipport UDP/TCP port to use for connections with the device; the default value is 23. Force Command Prompt cmd_prompt The command prompt to use. The default value is 'MP>', 'hpiLO->'. Method to Fence method The method to fence: on/off or cycle Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Delay (seconds) delay The number of seconds to wait before fencing is started. The default value is 0. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Table A.18, "HP iLO MP" lists the fence device parameters used by fence_ilo_mp , the fence agent for HP iLO MP devices. Table A.18. HP iLO MP luci Field cluster.conf Attribute Description Name name A name for the server with HP iLO support. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP Port (optional) ipport TCP port to use for connection with the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The Identity file for SSH. Force Command Prompt cmd_prompt The command prompt to use. The default value is 'MP>', 'hpiLO->'. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Delay (seconds) delay The number of seconds to wait before fencing is started. The default value is 0. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Table A.19, "HP Moonshot iLO (Red Hat Enterprise Linux 6.7 and later)" lists the fence device parameters used by fence_ilo_moonshot , the fence agent for HP Moonshot iLO devices. Table A.19. HP Moonshot iLO (Red Hat Enterprise Linux 6.7 and later) luci Field cluster.conf Attribute Description Name name A name for the server with HP iLO support. IP Address or Hostname ipaddr The IP address or host name assigned to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSH secure Indicates that the system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. Path to SSH Identity File identity_file The Identity file for SSH. TCP Port ipport UDP/TCP port to use for connections with the device; the default value is 22. Force Command Prompt cmd_prompt The command prompt to use. The default value is 'MP>', 'hpiLO->'. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Delay (seconds) delay The number of seconds to wait before fencing is started. The default value is 0. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Table A.20, "IBM BladeCenter" lists the fence device parameters used by fence_bladecenter , the fence agent for IBM BladeCenter. Table A.20. IBM BladeCenter luci Field cluster.conf Attribute Description Name name A name for the IBM BladeCenter device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP port (optional) ipport TCP port to use for connection with the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Use SSH secure Indicates that system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The identity file for SSH. Table A.21, "IBM BladeCenter SNMP" lists the fence device parameters used by fence_ibmblade , the fence agent for IBM BladeCenter over SNMP. Table A.21. IBM BladeCenter SNMP luci Field cluster.conf Attribute Description Name name A name for the IBM BladeCenter SNMP device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP Port (optional) udpport UDP/TCP port to use for connections with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string. SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP privacy protocol password snmp_priv_passwd The SNMP Privacy Protocol Password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.22, "IBM iPDU (Red Hat Enterprise Linux 6.4 and later)" lists the fence device parameters used by fence_ipdu , the fence agent for iPDU over SNMP devices. Table A.22. IBM iPDU (Red Hat Enterprise Linux 6.4 and later) luci Field cluster.conf Attribute Description Name name A name for the IBM iPDU device connected to the cluster into which the fence daemon logs by means of the SNMP protocol. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP Port udpport The UDP/TCP port to use for connection with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string; the default value is private . SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP Authentication Protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP Privacy Protocol Password snmp_priv_passwd The SNMP privacy protocol password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.23, "IF MIB" lists the fence device parameters used by fence_ifmib , the fence agent for IF-MIB devices. Table A.23. IF MIB luci Field cluster.conf Attribute Description Name name A name for the IF MIB device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP Port (optional) udpport The UDP/TCP port to use for connection with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string. SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP Privacy Protocol Password snmp_priv_passwd The SNMP privacy protocol password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.24, "Intel Modular" lists the fence device parameters used by fence_intelmodular , the fence agent for Intel Modular. Table A.24. Intel Modular luci Field cluster.conf Attribute Description Name name A name for the Intel Modular device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. UDP/TCP Port (optional) udpport The UDP/TCP port to use for connection with the device; the default value is 161. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. SNMP Version snmp_version The SNMP version to use (1, 2c, 3); the default value is 1. SNMP Community community The SNMP community string; the default value is private . SNMP Security Level snmp_sec_level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv). SNMP Authentication Protocol snmp_auth_prot The SNMP authentication protocol (MD5, SHA). SNMP Privacy Protocol snmp_priv_prot The SNMP privacy protocol (DES, AES). SNMP Privacy Protocol Password snmp_priv_passwd The SNMP privacy protocol password. SNMP Privacy Protocol Script snmp_priv_passwd_script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. The fence agents for IPMI over LAN ( fence_ipmilan ,) Dell iDRAC ( fence_idrac ), IBM Integrated Management Module ( fence_imm ), HP iLO3 devices ( fence_ilo3 ), and HP iLO4 devices ( fence_ilo4 ) share the same implementation. Table A.25, "IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4" lists the fence device parameters used by these agents. Table A.25. IPMI (Intelligent Platform Management Interface) LAN, Dell iDrac, IBM Integrated Management Module, HPiLO3, HPiLO4 luci Field cluster.conf Attribute Description Name name A name for the fence device connected to the cluster. IP Address or Hostname ipaddr The IP address or host name assigned to the device. Login login The login name of a user capable of issuing power on/off commands to the given port. Password passwd The password used to authenticate the connection to the port. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Authentication Type auth Authentication type: none , password , or MD5 . Use Lanplus lanplus True or 1 . If blank, then value is False . It is recommended that you enable Lanplus to improve the security of your connection if your hardware supports it. Ciphersuite to use cipher The remote server authentication, integrity, and encryption algorithms to use for IPMIv2 lanplus connections. Privilege level privlvl The privilege level on the device. IPMI Operation Timeout timeout Timeout in seconds for IPMI operation. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. The default value is 2 seconds for fence_ipmilan , fence_idrac , fence_imm , and fence_ilo4 . The default value is 4 seconds for fence_ilo3 . Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Method to Fence method The method to fence: on/off or cycle Table A.26, "Fence kdump" lists the fence device parameters used by fence_kdump , the fence agent for kdump crash recovery service. Note that fence_kdump is not a replacement for traditional fencing methods; The fence_kdump agent can detect only that a node has entered the kdump crash recovery service. This allows the kdump crash recovery service to complete without being preempted by traditional power fencing methods. Table A.26. Fence kdump luci Field cluster.conf Attribute Description Name name A name for the fence_kdump device. IP Family family IP network family. The default value is auto . IP Port (optional) ipport IP port number that the fence_kdump agent will use to listen for messages. The default value is 7410. Operation Timeout (seconds) (optional) timeout Number of seconds to wait for message from failed node. Node name nodename Name or IP address of the node to be fenced. Table A.27, "Multipath Persistent Reservation Fencing (Red Hat Enterprise Linux 6.7 and later)" lists the fence device parameters used by fence_mpath , the fence agent for multipath persistent reservation fencing. Table A.27. Multipath Persistent Reservation Fencing (Red Hat Enterprise Linux 6.7 and later) luci Field cluster.conf Attribute Description Name name A name for the fence_mpath device. Devices (Comma delimited list) devices Comma-separated list of devices to use for the current operation. Each device must support SCSI-3 persistent reservations. Use sudo when calling third-party software sudo Use sudo (without password) when calling 3rd party software. Path to sudo binary (optional) sudo_path Path to sudo binary (default value is /usr/bin/sudo . Path to mpathpersist binary (optional) mpathpersist_path Path to mpathpersist binary (default value is /sbin/mpathpersist . Path to a directory where the fence agent can store information (optional) store_path Path to directory where fence agent can store information (default value is /var/run/cluster . Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Unfencing unfence section of the cluster configuration file When enabled, this ensures that a fenced node is not re-enabled until the node has been rebooted. This is necessary for non-power fence methods. When you configure a device that requires unfencing, the cluster must first be stopped and the full configuration including devices and unfencing must be added before the cluster is started. For more information about unfencing a node, see the fence_node (8) man page. For information about configuring unfencing in the cluster configuration file, see Section 8.3, "Configuring Fencing" . For information about configuring unfencing with the ccs command, see Section 6.7.2, "Configuring a Single Storage-Based Fence Device for a Node" . Key for current action key Key to use for the current operation. This key should be unique to a node and written in /etc/multipath.conf . For the "on" action, the key specifies the key use to register the local node. For the "off" action, this key specifies the key to be removed from the device(s). This parameter is always required. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.28, "RHEV-M fencing (RHEL 6.2 and later against RHEV 3.0 and later)" lists the fence device parameters used by fence_rhevm , the fence agent for RHEV-M fencing. Table A.28. RHEV-M fencing (RHEL 6.2 and later against RHEV 3.0 and later) luci Field cluster.conf Attribute Description Name name Name of the RHEV-M fencing device. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP Port (optional) ipport The TCP port to use for connection with the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Use SSL ssl Use SSL connections to communicate with the device. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Port (Outlet) Number port Physical plug number or name of virtual machine. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.29, "SCSI Reservation Fencing" lists the fence device parameters used by fence_scsi , the fence agent for SCSI persistent reservations. Note Use of SCSI persistent reservations as a fence method is supported with the following limitations: When using SCSI fencing, all nodes in the cluster must register with the same devices so that each node can remove another node's registration key from all the devices it is registered with. Devices used for the cluster volumes should be a complete LUN, not partitions. SCSI persistent reservations work on an entire LUN, meaning that access is controlled to each LUN, not individual partitions. It is recommended that devices used for the cluster volumes be specified in the format /dev/disk/by-id/ xxx where possible. Devices specified in this format are consistent among all nodes and will point to the same disk, unlike devices specified in a format such as /dev/sda which can point to different disks from machine to machine and across reboots. Table A.29. SCSI Reservation Fencing luci Field cluster.conf Attribute Description Name name A name for the SCSI fence device. Unfencing unfence section of the cluster configuration file When enabled, this ensures that a fenced node is not re-enabled until the node has been rebooted. This is necessary for non-power fence methods (that is, SAN/storage fencing). When you configure a device that requires unfencing, the cluster must first be stopped and the full configuration including devices and unfencing must be added before the cluster is started. For more information about unfencing a node, see the fence_node (8) man page. For information about configuring unfencing in the cluster configuration file, see Section 8.3, "Configuring Fencing" . For information about configuring unfencing with the ccs command, see Section 6.7.2, "Configuring a Single Storage-Based Fence Device for a Node" . Node name nodename The node name is used to generate the key value used for the current operation. Key for current action key (overrides node name) Key to use for the current operation. This key should be unique to a node. For the "on" action, the key specifies the key use to register the local node. For the "off" action,this key specifies the key to be removed from the device(s). Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Table A.30, "VMware Fencing (SOAP Interface) (Red Hat Enterprise Linux 6.2 and later)" lists the fence device parameters used by fence_vmware_soap , the fence agent for VMware over SOAP API. Table A.30. VMware Fencing (SOAP Interface) (Red Hat Enterprise Linux 6.2 and later) luci Field cluster.conf Attribute Description Name name Name of the virtual machine fencing device. IP Address or Hostname ipaddr The IP address or host name assigned to the device. IP Port (optional) ipport The TCP port to use for connection with the device. The default port is 80, or 443 if Use SSL is selected. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. VM name port Name of virtual machine in inventory path format (for example, /datacenter/vm/Discovered_virtual_machine/myMachine). VM UUID uuid The UUID of the virtual machine to fence. Delay (optional) delay The number of seconds to wait before fencing is started. The default value is 0. Use SSL ssl Use SSL connections to communicate with the device. Table A.31, "WTI Power Switch" lists the fence device parameters used by fence_wti , the fence agent for the WTI network power switch. Table A.31. WTI Power Switch luci Field cluster.conf Attribute Description Name name A name for the WTI power switch connected to the cluster. IP Address or Hostname ipaddr The IP or host name address assigned to the device. IP Port (optional) ipport The TCP port to use to connect to the device. Login login The login name used to access the device. Password passwd The password used to authenticate the connection to the device. Password Script (optional) passwd_script The script that supplies a password for access to the fence device. Using this supersedes the Password parameter. Force command prompt cmd_prompt The command prompt to use. The default value is ['RSM>', '>MPC', 'IPS>', 'TPS>', 'NBB>', 'NPS>', 'VMR>'] Power Wait (seconds) power_wait Number of seconds to wait after issuing a power off or power on command. Power Timeout (seconds) power_timeout Number of seconds to continue testing for a status change after issuing a power off or power on command. The default value is 20. Shell Timeout (seconds) shell_timeout Number of seconds to wait for a command prompt after issuing a command. The default value is 3. Login Timeout (seconds) login_timeout Number of seconds to wait for a command prompt after login. The default value is 5. Times to Retry Power On Operation retry_on Number of attempts to retry a power on operation. The default value is 1. Use SSH secure Indicates that system will use SSH to access the device. When using SSH, you must specify either a password, a password script, or an identity file. SSH Options ssh_options SSH options to use. The default value is -1 -c blowfish . Path to SSH Identity File identity_file The identity file for SSH. Port port Physical plug number or name of virtual machine.

Commands: