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Fence Device Parameters

This appendix provides tables with parameter descriptions of fence devices as well as the name of the fence agent for each of those devices.

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. APC Power Switch (telnet/SSH)
Field Description
Name A name for the APC device connected to the cluster into which the fence daemon logs via telnet/ssh.
IP Address The IP address or hostname assigned to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
Switch (optional) The switch number for the APC switch that connects to the node when you have multiple daisy-chained switches.
Use SSH Indicates that system will use SSH to access the device.
Path to the SSH identity file The identity file for SSH.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_apc The fence agent for APC over telnet/SSH.

Table A.2. APC Power Switch over SNMP
Field Description
Name A name for the APC device connected to the cluster into which the fence daemon logs via the SNMP protocol.
IP Address The IP address or hostname assigned to the device.
UDP/TCP port The UDP/TCP port to use for connection with the device; the default value is 161.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
Switch (optional) The switch number for the APC switch that connects to the node when you have multiple daisy-chained switches.
SNMP version The SNMP version to use (1, 2c, 3); the default value is 1.
SNMP community The SNMP community string; the default value is private.
SNMP security level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv).
SNMP authentication protocol The SNMP authentication protocol (MD5, SHA).
SNMP privacy protocol The SNMP privacy protocol (DES, AES).
SNMP privacy protocol password The SNMP privacy protocol password.
SNMP privacy protocol script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_apc_snmp The fence agent for APC that logs into the SNP device via the SNMP protocol.

Table A.3. Cisco MDS
Field Description
Name A name for the Cisco MDS 9000 series device with SNMP enabled.
IP Address The IP address or hostname assigned to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
SNMP version The SNMP version to use (1, 2c, 3).
SNMP community The SNMP community string.
SNMP authentication protocol The SNMP authentication protocol (MD5, SHA).
SNMP security level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv).
SNMP privacy protocol The SNMP privacy protocol (DES, AES).
SNMP privacy protocol password The SNMP privacy protocol password.
SNMP privacy protocol script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_cisco_mds The fence agent for Cisco MDS.

Table A.4. Dell DRAC 5
Field Description
Name The name assigned to the DRAC.
IP Address The IP address or hostname assigned to the DRAC.
IP port (optional) The TCP port to use to connect to the device.
Login The login name used to access the DRAC.
Password The password used to authenticate the connection to the DRAC.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Module name (optional) The module name for the DRAC when you have multiple DRAC modules.
Use SSH Indicates that system will use SSH to access the device.
Path to the SSH identity file The identity file for SSH.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_drac5 The fence agent for Dell DRAC 5.

Table A.5. Egenera SAN Controller
Field Description
Name A name for the eGenera BladeFrame device connected to the cluster.
CServer The hostname (and optionally the username in the form of [email protected]) assigned to the device. Refer to the fence_egenera(8) man page for more information.
ESH Path (optional) The path to the esh command on the cserver (default is /opt/pan- mgr/bin/esh)
lpan The logical process area network (LPAN) of the device.
pserver The processing blade (pserver) name of the device.
fence_egenera The fence agent for the eGenera BladeFrame.

Table A.6. ePowerSwitch
Field Description
Name A name for the ePowerSwitch device connected to the cluster.
IP Address The IP address or hostname assigned to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
Hidden page The name of the hidden page for the device.
fence_eps The fence agent for ePowerSwitch.

Table A.7. Fujitsu Siemens Remoteview Service Board (RSB)
Field Description
Name A name for the RSB to use as a fence device.
Hostname The hostname assigned to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
TCP port The port number on which the telnet service listens.
fence_rsb The fence agent for Fujitsu-Siemens RSB.

Table A.8. Fence virt
Field Description
Name A name for the Fence virt fence device.
Port Virtual machine (domain UUID or name) to fence.
Serial device On the host, the serial device must be mapped in each domain's configuration file. For more information, see the fence_virt.conf 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 The serial parameters. The default is 115200, 8N1.
VM channel IP address The channel IP. The default value is 10.0.2.179.
Channel port The channel port. The default value is 1229

Table A.9. HP iLO/iLO2 (Integrated Lights Out)
Field Description
Name A name for the server with HP iLO support.
Hostname The hostname assigned to the device.
IP port (optional) TCP port to use for connection with the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_ilo The fence agent for HP iLO devices.

Table A.10. HP iLO (Integrated Lights Out) MP
Field Description
Name A name for the server with HP iLO support.
Hostname The hostname assigned to the device.
IP port (optional) TCP port to use for connection with the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
SSH Indicates that the system will use SSH to access the device.
Path to the SSH identity file The identity file for SSH.
Force command prompt The command prompt to use. The default value is ’MP>’, ’hpiLO->’.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_ilo_mp The fence agent for HP iLO MP devices.

Table A.11. IBM BladeCenter
Field Description
Name A name for the IBM BladeCenter device connected to the cluster.
IP Address The IP address or hostname assigned to the device.
IP port (optional) TCP port to use for connection with the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
Use SSH Indicates that system will use SSH to access the device.
Path to the SSH identity file The identity file for SSH.
fence_bladecenter The fence agent for IBM BladeCenter.

Table A.12. IBM BladeCenter SNMP
Field Description
Name A name for the IBM BladeCenter SNMP device connected to the cluster.
IP Address The IP address or hostname assigned to the device.
UDP/TCP port (optional) UDP/TCP port to use for connections with the device; the default value is 161.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
SNMP version The SNMP version to use (1, 2c, 3); the default value is 1.
SNMP community The SNMP community string.
SNMP security level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv).
SNMP authentication protocol The SNMP authentication protocol (MD5, SHA).
SNMP privacy protocol The SNMP privacy protocol (DES, AES).
SNMP privacy protocol password The SNMP privacy protocol password.
SNMP privacy protocol script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_bladecenter The fence agent for IBM BladeCenter.

Table A.13. IF MIB
Field Description
Name A name for the IF MIB device connected to the cluster.
IP Address The IP address or hostname assigned to the device.
UDP/TCP port(optiona) The UDP/TCP port to use for connection with the device; the default value is 161.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
SNMP version The SNMP version to use (1, 2c, 3); the default value is 1.
SNMP community The SNMP community string.
SNMP security level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv).
SNMP authentication protocol The SNMP authentication protocol (MD5, SHA).
SNMP privacy protocol The SNMP privacy protocol (DES, AES).
SNMP privacy protocol password The SNMP privacy protocol password.
SNMP privacy protocol script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
Port Physical plug number or name of virtual machine.
fence_ifmib The fence agent for IF-MIB devices.

Table A.14. Intel Modular
Field Description
Name A name for the Intel Modular device connected to the cluster.
IP Address The IP address or hostname assigned to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
SNMP version The SNMP version to use (1, 2c, 3); the default value is 1.
SNMP community The SNMP community string; the default value is private.
SNMP security level The SNMP security level (noAuthNoPriv, authNoPriv, authPriv).
SNMP authentication protocol The SNMP authentication protocol (MD5, SHA).
SNMP privacy protocol The SNMP privacy protocol (DES, AES).
SNMP privacy protocol password The SNMP privacy protocol password.
SNMP privacy protocol script The script that supplies a password for SNMP privacy protocol. Using this supersedes the SNMP privacy protocol password parameter.
Power wait Number of seconds to wait after issuing a power off or power on command.
fence_intelmodular The fence agent for APC.

Table A.15. IPMI (Intelligent Platform Management Interface) LAN
Field Description
Name A name for the IPMI LAN device connected to the cluster.
IP Address The IP address or hostname assigned to the device.
Login The login name of a user capable of issuing power on/off commands to the given IPMI port.
Password The password used to authenticate the connection to the IPMI port.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Authentication Type none, password, md2, or md5
Use Lanplus True or 1. If blank, then value is False.
Ciphersuite to use The remote server authentication, integrity, and encryption algorithms to use for IPMIv2 lanplus connections.
fence_ipmilan The fence agent for machines controlled by IPMI.

Table A.16. SCSI Fencing
Field Description
Name A name for the SCSI fence device.
Node name Name of the node to be fenced. Refer to the fence_scsi(8) man page for more information.
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.
Table A.17. WTI Power Switch
Field Description
Name A name for the WTI power switch connected to the cluster.
IP Address The IP or hostname address assigned to the device.
IP port (optional) The TCP port to use to connect to the device.
Login The login name used to access the device.
Password The password used to authenticate the connection to the device.
Password Script (optional) The script that supplies a password for access to the fence device. Using this supersedes the Password parameter.
Port Physical plug number or name of virtual machine.
Force command prompt The command prompt to use. The default value is [’RSM>’, ’>MPC’, ’IPS>’, ’TPS>’, ’NBB>’, ’NPS>’, ’VMR>’]
Power wait Number of seconds to wait after issuing a power off or power on command.
Use SSH Indicates that system will use SSH to access the device.
Path to the SSH identity file The identity file for SSH.
fence_wti The fence agent for the WTI network power switch.