Method and apparatus for recovering logical partition configuration data

A method in a data processing system for recovering an image of partition configuration information for a set of partitions, the method comprising:

• comparing current partition configuration data with a backup partition configuration data to determine if a conflict is present;
• using current partition configuration data to restore configuration data for a partition in the set of partitions if a conflict is present and data if the partition is defined as an affinity partition in the current partition configuration data;
• and
• using backup partition configuration data to restore the image of configuration information for the partition if a conflict is present and if the partition in defined as a normal partition in the current partition configuration data and in the backup partition configuration data;
• and
• using the backup partition configuration data to restore the image of configuration information of the partition if a conflict is present and if the partition defined as normal in the backup partition configuration data is undefined or defined as normal in the current partition configuration data.

A data processing system for recovering an image of partition configuration information data for a set of partitions having at least one affinity partition, the data processing system comprising:

• detecting means for detecting damage to an image of partition configuration data;
• comparing means for comparing current partition data with a backup partition data;
• and
• performing means for performing a merger of the current partition configuration data with the backup logical partition data if a conflict is present between the current partition configuration data and the backup partition data, wherein merger is performed in a manner avoiding stopping an operation on a running partition in the set of partitions.

A data processing system for recovering an image of partition configuration information for a set of partitions, the data processing system comprising:

• comparing means for comparing current partition configuration data with a backup partition configuration data to determine if a conflict is present;
• first using means for using current partition configuration data to restore configuration data for a partition in the set of partitions if a conflict is present and data if the partition is defined as an affinity partition in the current partition configuration data;
• and
• second using means for using backup partition configuration data to restore the image of configuration information for the partition if a conflict is present and if to partition in defined as a normal partition in the current partition configuration data and in the backup partition configuration data;
• and
• third using means for using the backup partition configuration data to restore the image of configuration information of the partition if a conflict is present and if the partition defined as normal in the backup partition configuration data is undefined or defined as normal in the current partition configuration data.

A data processing system for recovering an image of partition configuration information data for a set of partitions having at least one affinity partition, the data processing system comprising:

• a bus system;
• a memory connected to the bus system, wherein the memory includes a set of instructions;
• a processing unit connected to the bus system, wherein the bus system executes the set of instructions to detect damage to an image of partition configuration data;
• compare current partition data with a backup partition data when the damage is detected;
• and perform a merger of the current partition configuration data with the backup logical partition data if a conflict is present between the current partition configuration data and the backup partition data, wherein merger is performed in a manner avoiding stopping an operation on a running partition in the set of partitions.

A data processing system for recovering an image of partition configuration information for a set of partitions, the data processing system comprising:

• a bus system;
• a memory connected to the bus system, wherein the memory includes a set of instructions;
• a processing unit connected to the bus system, wherein the bus system executes the set of instructions to compare current partition configuration data with a backup partition configuration data to determine if a conflict is present;
• use current partition configuration data to restore configuration data for a partition in the set of partitions if a conflict is present and data if the partition is defined as an affinity partition in the current partition configuration data;
• and use backup partition configuration data to restore the image of configuration information for the partition if a conflict is present and if the partition in defined as a normal partition in the current partition configuration data and in the backup partition configuration data;
• and use the backup partition configuration data to restore the image of configuration information of the partition if a conflict is present and if to partition defined as normal in the backup partition configuration data is undefined or defined as normal in the current partition configuration data.

A computer program product in a computer recordable readable medium for recovering an image of partition configuration information data for a set of partitions having at least one affinity partition, the computer program product comprising:

• first instructions for detecting damage to an image of partition configuration data;
• second instructions for comparing current partition data with a backup partition data;
• and
• third instructions for performing a merger of the current partition configuration data with the backup logical partition data if a conflict is present between the current partition configuration data and the backup partition data, wherein merger is performed in a manner avoiding stopping an operation on a running partition in the set of partitions.

A computer program product in a computer recordable readable medium for recovering an image of partition configuration information for a set of partitions, the method comprising:

• first instructions for comparing current partition configuration data with a backup partition configuration data to determine if a conflict is present;
• second instructions for using current partition configuration data to restore configuration data for a partition in the set of partitions if a conflict is present and data if the partition is defined as an affinity partition in the current partition configuration data;
• and
• third instructions for using backup partition configuration data to restore the image of configuration information for the partition if a conflict is present and if the partition in defined as a normal partition in the current partition configuration data and in to backup partition configuration data;
• and
• fourth instructions for using the backup partition configuration data to restore the image of configuration information of the partition if a conflict is present and if the partition defined as normal in the backup partition configuration data is undefined or defined as normal in the current partition configuration data.