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STONITH module for IBM BladeCenter via OpenHPI
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Linux-HA bladehpi STONITH plugin requires OpenHPI 2.6+
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OpenHPI requires Net-SNMP 5.0+
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OpenHPI requires BladeCenter Management Module 1.08+
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This STONITH module talks to IBM BladeCenters via SNMP through use of
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the OpenHPI BladeCenter plugin (snmp_bc). For more information about
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installing OpenHPI, setting up the BladeCenter SNMP agent, etc. please
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visit http://www.openhpi.org/. Once OpenHPI is installed properly,
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the STONITH plugin will automatically be built the next time Linux-HA
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Use the OpenHPI configuration file (i.e. /etc/openhpi/openhpi.conf)
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to configure the BladeCenters of interest to STONITH. For example,
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the following excerpt:
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entity_root = "{SYSTEM_CHASSIS,1}" # Required
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host = "9.254.253.252" # Required
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community = "community" # Version 1 Required.
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version = "3" # Required. SNMP protocol version (1|3)
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security_name = "userid" # Version 3 Required.
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passphrase = "userpass" # Version 3. Required if security_level is authNoPriv or authPriv.
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auth_type = "MD5" # Version 3. Passphrase encoding (MD5|SHA)
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security_level = "authNoPriv" # Version 3. (noAuthNoPriv|authNoPriv|authPriv)
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defines how to access the BladeCenter at 9.254.253.252 using SNMPV3
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with an ID/password of userid/userpass. The entity_root must be
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passed to the STONITH bladehpi plugin as its single required parameter.
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For example, to query the list of blades present in the BladeCenter
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configured above, run:
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stonith -t bladehpi -p "{SYSTEM_CHASSIS,1}" -l
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stonith -t bladehpi "entity_root={SYSTEM_CHASSIS,1}" -l
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Use the BladeCenter Management Module web interface to set the Blade
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Information to match "uname -n" for each blade in the cluster. For
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example, with the BladeCeter configured above use a brower to access
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http://9.254.253.252, login with userid/userpass, and then go to
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Blade Tasks -> Configuration -> Blade Information, enter the proper
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names, and select Save. Be aware that heartbeat must be restarted
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before these changes take effect or, if using the OpenHPI daemon,
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the daemon must be restarted.
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More than one BladeCenter can be placed in the OpenHPI configuration
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file by using different numbers with the entity_root. For example,
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entity_root = "{SYSTEM_CHASSIS,1}" # Required
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host = "9.254.253.252" # Required
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entity_root = "{SYSTEM_CHASSIS,2}" # Required
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host = "9.254.253.251" # Required
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There is an optional parameter, soft_reset, that is true|1 if bladehpi
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should use soft reset (power cycle) to reset nodes or false|0 if it
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should use hard reset (power off, wait, power on); the default is
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false. As an example, to override the default value the above stonith
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stonith -t bladehpi -p "{SYSTEM_CHASSIS,1} true" -l
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stonith -t bladehpi "entity_root={SYSTEM_CHASSIS,1} soft_reset=true" -l
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The difference between the two is that a soft reset is much quicker
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but may return before the node has been reset because bladehpi relies
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on BladeCenter firmware to cycle the node's power, while a hard reset
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is slower but guaranteed not to return until the node is dead because
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bladehpi powers off the node, waits until it is off, then powers it
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NOTE: Set the OPENHPI_CONF environment variable to contain the
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fully-qualified path of the OpenHPI configuration file, for example:
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export OPENHPI_CONF=/etc/openhpi/openhpi.conf
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NOTE: If OpenHPI is not configured with --disable-daemon before being
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built and installed, make sure that the OpenHPI daemon is running
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before using the bladehpi plugin.
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NOTE: If debugging of the environment is needed, configure OpenHPI
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with --enable-debuggable and rebuild/reinstall, export
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OPENHPI_DEBUG=YES, and run stonith commands with the -d option.
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removed
lib/plugins/stonith/README.bladehpi
