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Method for maintaining the availability of virtual machines in a software partitioned environment

IP.com Disclosure Number: IPCOM000028201D
Original Publication Date: 2004-May-03
Included in the Prior Art Database: 2004-May-03
Document File: 1 page(s) / 39K

Publishing Venue

IBM

Abstract

Method for maintaining the availability of virtual machines in a software partitioned environment

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Method for maintaining the availability of virtual machines in a software partitioned environment

   In a software partitioned environment, the user distributes important workloads into the various partitions. A special partition, often running a general purpose operating system, is used to manage the environment, typically through a remote network connection. Today, if a problem occurs in the management partition that warrants a reboot of the partition, all the partitions on the physical system must also be shutdown. Hence, something as small as a misbehaved management agent in the management partition can cause all of a users critical workloads to be unavailable for the period of the physical reboot of the system and the management partition.

   This invention proposes that there be "hooks" placed in the management partition such that a management adapter in the system can reboot just the management partition without causing all the guest virtual machines to also be rebooted. One of the most important functions of a management adapter is to server as a watchdog for the host system's operating system, and this invention is an extension of this application. It has a multiplier effect though over the older application because it affects not only one machine, but up to a hundred virtual machines.

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