摘要:
A method and systems for recovering from a failure in a virtual machine are provided. In accordance with one embodiment of the present disclosure, a method for recovering from failures in a virtual machine is provided. The method may include, in a first physical host having a host operating system and a virtual machine running on the host operating system, monitoring one or more parameters associated with a program running on the virtual machine, each parameter having a predetermined acceptable range. The method may further include determining if the one or more parameters are within their respective predetermined acceptable ranges. In response to determining that the one or more parameters associated with the program running on the virtual machine are not within their respective predetermined acceptable ranges, a management module may cause the application running on the virtual machine to be restarted.
摘要:
A system and method for recovering from a failure in a cluster network is disclosed in which an instance of an application of a failed network node is initiated on a second network with data representative of the operating environment of the application of the failed network node.
摘要:
An apparatus, system, and method are provided for causing a failed node in a cluster to transfer its outstanding transaction queue to one or more surviving nodes. The heartbeat of the various cluster nodes is used to monitor the nodes within the cluster as the heartbeat is a dedicated link between the cluster nodes. If a failure is detected anywhere within the cluster node (such as a network section, hardware failure, storage device, or interconnections) then a failover procedure will be initiated. The failover procedure includes transferring the transaction queue from the failed node to one or more other nodes within the cluster so that the transactions can be serviced, preferably before a time out period, so that clients are not prompted to re-request the transaction.
摘要:
A method and systems for recovering from a failure in a virtual machine are provided. In accordance with one embodiment of the present disclosure, a method for recovering from failures in a virtual machine is provided. The method may include, in a first physical host having a host operating system and a virtual machine running on the host operating system, monitoring one or more parameters associated with a program running on the virtual machine, each parameter having a predetermined acceptable range. The method may further include determining if the one or more parameters are within their respective predetermined acceptable ranges. In response to determining that the one or more parameters associated with the program running on the virtual machine are not within their respective predetermined acceptable ranges, a management module may cause the application running on the virtual machine to be restarted.
摘要:
An information handling system comprises a power supply unit providing a controllable main power supply and a stand-by power supply, a power controller unit receiving the stand-by power supply, and a plurality of sub-systems. Each sub-system comprises a voltage regulator unit being controlled by the power controller unit.
摘要:
A server cluster comprises a physical node and a virtual host node. The physical node includes an active node running an application. The virtual host node includes an inactive virtual node. The virtual node is activated upon failure of the active node and the application is failed over to the virtual node.
摘要:
A system and method for replicating data in a computer system is disclosed. In one embodiment, data replication between a source subsystem and a target subsystem may be selectively changed between synchronous data transfer and asynchronous data transfer based on the occurrence of selected conditions. In another embodiment, a repository subsystem allows write statements to be queued during the time that the target subsystem is unable to replicate data from the source subsystem.
摘要:
A system and method for the implementation of an adaptive cache policy in a storage controller is disclosed in which a cache optimization utility monitors data access commands generated by one or more of the software applications of a server node. On the basis of one or more characteristics of the data access commands, the cache optimization utility can adjust the cache policy of the storage controller. In the case of a database application, the cache policy of the storage controller can be adjusted so that a first cache policy is applied with respect to data access commands directed to the data files of the database and a second cache policy is applied with respect to data access commands directed to transaction log files of the database.
摘要:
A system and method for failure recovery and failure management in a cluster network is disclosed. Following a failure of a storage enclosure or a communication link failure between storage enclosures, each server node of the network determines whether the server node can access the drives of each logical unit owned by the server node. If the server node cannot access a set of drives of the logical that include an operational set of data, an alternate server node is queried to determine if the alternate server node can access the a set of drives of the logical unit that include an operational set of data.
摘要:
An information handling system comprises a power supply unit providing a controllable main power supply and a stand-by power supply, a power controller unit receiving the stand-by power supply, and a plurality of sub-systems. Each sub-system comprises a voltage regulator unit being controlled by the power controller unit.