Patent ID: 7770075

Claim:
A computer system comprising a processor, plurality of partitions such that each partition has its own operating system, a hypervisor that mediates between or among said operating systems, at least one computer usable storage medium coupled to the processor, and a computer readable program code stored in the at least one computer usable storage medium, said program code configured to be executed by the processor to implement a method for monitoring the plurality of partitions, said method comprising: providing a partition status buffer (PSB) for each partition of the plurality of partitions, said partition status buffer denoting a status of the partition, said status being selected from a group of statuses that comprises a BAD status and a NOCARE status, said BAD denoting that the partition has encountered at least one error that is currently unrepaired, wherein a global supervisor mapping (GSM) associates each partition of the plurality of partitions with a supervisor partition in a one-to-one mapping; determining, by a first supervisor partition of the supervisor partitions, the partition that is associated with the first supervisor partition in the global supervisor mapping, said partition associated with the first supervisor partition being denoted as a supervised partition; ascertaining, from the partition status buffer, the status of the supervised partition; if said ascertaining ascertains that the status of the supervised partition is not the BAD status then exiting from the method, else performing a recovery procedure comprising: obtaining by the first supervisor partition a grant of access to physical and logical resources of the supervised partition; gathering by the first supervisor partition error data relating to the supervised partition, said gathering being from said physical and logical resources of the supervised partition; and setting the status of the supervised partition to the NOCARE status in the partition status buffer.