Method and system for achieving high availability in a networked computer system

A method for achieving high availability in a networked computer system, the networked computer system including a plurality of nodes connected by a network, the method comprising:

• using a plurality of components in each of the plurality of nodes to represent hardware and software in the networked computer system, wherein the plurality of components are high-availability aware;
• managing the plurality of components to achieve a desired level or levels of redundancy;
• monitoring health of the networked computer system, including health of the plurality of components and health of the plurality of nodes;
• detecting a failure in the networked computer system, including a failure of a component in the plurality of components and a failure of a node in the plurality of nodes;
• recovering from the failures by performing appropriate failure recovery procedure;
• and
• migrating one of the plurality of components from one node to another node in the plurality of nodes.

A system for making a networked computer system highly available, wherein the networked computer system includes a plurality of nodes connected by a network, the system comprising:

• means for using a plurality of components to each represent a set of hardware and software in the networked computer system, wherein the plurality of components are high-availability aware;
• means for maintaining a desired level or levels of redundancy comprising assigning at least one of the plurality of components to provide a service within the networked computer system;
• means for assigning operating states to the assigned components;
• means for detecting failure of or request for change of state from one of the assigned components;
• and
• means for modifying the assigned operating states including a state of the one of the assigned components associated with the detected failure or the detected request for change of state.

A system for making a networked computer system highly available, wherein the networked computer system includes a plurality of nodes connected by a network, the system comprising:

• means for using a plurality of components in each of the plurality of nodes to represent hardware and software in the networked computer system, wherein the plurality of components are high-availability aware;
• means for managing the plurality of components to achieve a desired level or levels of redundancy;
• means for monitoring health of the networked computer system, including health of the plurality of components and health of the plurality of nodes;
• means for detecting a failure in the networked computer system, including a failure of a component in the plurality of components and a failure of a node in the plurality of nodes;
• means for recovering from the failures by performing appropriate fault recovery procedure;
• and
• means for migrating one of the plurality of components from one node to another node in the plurality of nodes.

A computer program product configured to achieve high availability in a networked computer system, the networked computer system including a plurality of nodes connected by a network, the computer program product comprising:

• computer readable program code configured to create a plurality of components to each represent a set of hardware and software in the networked computer system, wherein the plurality of components are high-availability aware;
• computer readable program code configured to maintain a desired level or levels of redundancy of the plurality of components, the maintaining comprising assigning at least one of the plurality of components to provide a service;
• computer readable program code configured to assign operating states to the assigned components;
• computer readable program code configured to detect failure of one of the assigned components;
• computer readable program code configured to detect the assigned operating states including a state of the one of the assigned components associated with the detected failure;
• and
• a computer readable medium having the computer readable program codes embodied therein.

A computer program product configured to achieve high availability in a networked computer system, the networked computer system including a plurality of nodes connected by a network, the computer program product comprising:

• computer readable program code configured to use a plurality of components in at least some of the nodes to represent hardware and software in the networked computer system, wherein the plurality of components are high-availability aware;
• computer readable program code configured to manage the plurality of components to achieve a desired level or levels of redundancy;
• computer readable program code configured to monitor health of the networked computer system, including health of the plurality of components and health of the plurality of nodes;
• computer readable program code configured to detect a failure in the networked computer system, including a failure of a component in the plurality of components and a failure of a node in the plurality of nodes;
• computer readable program code configured to recover from the failures by performing appropriate failure recovery procedure;
• computer readable program code configured to migrate one of the plurality or components from one of the plurality of nodes to another one of the plurality of nodes;
• and
• a computer readable medium having the computer readable program codes embodied therein.