Method and apparatus for recovery of partitions in a logical partitioned data processing system

A method in a logical partitioned data processing system for handling an error state for a set of partitions, the method comprising:

• detecting an error in a shared device assigned to the set of partitions in the logical partitioned data processing system;
• checking a state of other partitions within the set of partitions;
• initiating a recovery process for the shared device if all the partitions in the set of partitions have terminated;
• resetting the shared device if the recovery process is successful;
• and
• rebooting the set of partitions after the share device has been reset.

A method in a logical partitioned data processing system for handling an error state for a set of partitions caused by an input/output slot being marked bad, the method comprising:

• responsive to the set of partitions associated with a host bridge going into the error state in the logical partitioned data processing system, initiating a recovery process to reset the host bridge;
• determining whether the recovery process is successful;
• restoring hardware states in the host bridge if the recovery process is successful;
• changing the input/output slot to a normal state;
• and
• booting the set of partitions.

A logical partitioned data processing system for recovering terminated partitions, the logical partitioned data processing system comprising:

• detecting means for detecting a termination of a partition in a set of partitions associated with a host bridge in the logical partitioned data processing system;
• checking means, responsive to detecting the termination, for checking a state of other partitions within the set of partitions;
• initiating means for initiating a recovery process if all partitions in the set of partitions have terminated;
• resetting means for resetting input/output slots associated with the host bridge to a normal state if the recovery process is successful;
• and
• rebooting means for rebooting the set of partitions after resetting the input/output slots associated with the host bridge without rebooting the logical partitioned data processing system.

A logical partitioned data processing system in a logical partitioned data processing system for handling an error state for a set of partitions, the logical partitioned data processing system comprising:

• detecting means for detecting an error in a shared device assigned to the set of partitions in the logical partitioned data processing system;
• checking means for checking a state of other partitions within the set of partitions;
• initiating means for initiating a recovery process for the shared device if all the partitions in the set of partitions have terminated;
• resetting means for resetting the shared device if the recovery process is successful;
• and
• rebooting means for rebooting the set of partitions after the share device has been reset.

A logical partitioned data processing system in a logical partitioned data processing system for handling an error state for a set of partitions caused by an input/output slot being marked bad, the logical partitioned data processing system comprising:

• initiating means, responsive to the set of partitions associated with a host bridge going into the error state in the logical partitioned data processing system, for initiating a recovery process to reset the host bridge;
• determining means for determining whether the recovery process is successful;
• restoring means for restoring hardware states in the host bridge if the recovery process is successful;
• changing means for changing the input/output slot to a normal state;
• and
• booting means for booting the set of partitions.

A logical partitioned data processing system for recovering terminated partitions, the logical partitioned 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 having a plurality of processors and being connected to the bus system, wherein the processing unit executes the set of instructions to detect a termination of a partition in a set of partitions associated with a host bridge in the logical partitioned data processing system;
• check a state of other partitions within the set of partitions responsive to detecting the termination;
• initiate a recovery process if all partitions in the set of partitions have terminated;
• reset input/output slots associated with the host bridge to a normal state if the recovery process is successful;
• and reboot the set of partitions after resetting the input/output slots associated with the host bridge without rebooting the logical partitioned data processing system.

A logical partitioned data processing system for handling an error state for a set of partitions, the logical partitioned data processing system comprising:

• a bus system;
• a memory connected to the bus system, wherein the memory includes a set of instructions;
• and
• a processing unit having a plurality of processors and being connected to the bus system, wherein the processing unit executes the set of instructions to detect an error in a shared device assigned to the set of partitions in the logical partitioned data processing system;
• check a state of other partitions within the set of partitions;
• initiate a recovery process for the shared device if all the partitions in the set of partitions have terminated;
• reset the shared device if the recovery process is successful;
• and reboot the set of partitions after the share device has been reset.

A logical partitioned data processing system for handling an error state for a set of partitions caused by an input/output slot being marked bad, the logical partitioned data processing system comprising:

• a bus system;
• a memory connected to the bus system, wherein the memory includes a set of instructions;
• and
• a processing unit having a plurality of processors and being connected to the bus system, wherein the processing unit executes the set of instructions to initiate a recovery process to reset the host bridge, responsive to the set of partitions associated with a host bridge going into the error state in the logical partitioned data processing system;
• determine whether the recovery process is successful;
• restore hardware states in the host bridge if the recovery process is successful;
• change the input/output slot to a normal state;
• and boot the set of partitions.

A computer program product in a computer recordable medium for recovering terminated partitions, in a logical partition in a data processing system the computer program product comprising:

• first instructions for detecting a termination of a partition in a set of partitions associated with a host bridge in the logical partitioned data processing system;
• second instructions, responsive to detecting to termination, for checking a state of other partitions within the set of partitions;
• third instructions for initiating a recovery process if all partitions in the set of partitions have terminated;
• fourth instructions for resetting input/output slots associated with the host bridge to a normal state if the recovery process is successful;
• and
• fifth instructions for rebooting the set of partitions after resetting the input/output slots associated with the host bridge without rebooting the logical partitioned data processing system.

A computer program product in a computer recordable medium for handling an error state for a set of partitions in a logical partitioned data processing system, the computer program product comprising:

• first instructions for detecting an error in a shared device assigned to the set of partitions in the logical partitioned data processing system;
• second instructions for checking a state of other partitions within the set of partitions;
• third instructions for initiating a recovery process for the shared device if all the partitions in the set of partitions have terminated;
• fourth instructions for resetting the shared device if the recovery process is successful;
• and
• fifth instructions for rebooting the set of partitions after the share device has been reset.

A computer program product in a logical partitioned data processing system for handling an error state for a set of partitions caused by an input/output slot being marked bad, the computer program product comprising:

• first instructions, responsive to the set of partitions associated with a host bridge going into the error state in the logical partitioned data processing system, for initiating a recovery process to reset the host bridge;
• second instructions for determining whether the recovery process is successful;
• third instructions for restoring hardware states in the host bridge if the recovery process is successful;
• fourth instructions for changing the input/output slot to a normal state;
• and
• fifth instructions for booting the set of partitions.