Semi-automatic failover includes automatic failover by a service provider as well as self-serviced failover by a service consumer. A signal can be afforded by a service provider based on analysis of an incident that affects the service provider. Initiation of self-serviced failover by a service consumer can be predicated on the signal. In one instance, the signal provides information that aids a decision of whether or not to failover. In another instance, the signal can grant or deny permission to perform a self-serviced failover.

A method for high-availability operation is provided. The method includes communicating state information from each of a plurality of network elements to at least a first master network controller. The method includes communicating transformed state information from the first master network controller to the plurality of network elements and to each of a plurality of follower network controllers. The method includes continuing the high-availability operation with a new master network controller selected from among the plurality of follower network controllers as a failover, using the transformed state information in the new master network controller and in the plurality of network elements, responsive to a failure of the first master network controller. A network controller system is also provided.

A system of communicating data over a high availability industrial control system is disclosed. The industrial control system includes a first data producer, a second data producer in communicative connection with the first data producer, a first data consumer, and a second data consumer in communicative connection with the first data consumer. The system further includes the first producer communicating the data over multiple connection paths from the first producer to the first consumer and the second consumer through intermediate modules, and the second producer communicating the data over multiple connection paths from the second producer to the first consumer and the second consumer through intermediate modules. Also disclosed is a method of communicating data over the high availability industrial control system.

Provided are a computer program product, system, and method for using a track format code in a cache control block for a track in a cache to process read and write requests to the track in the cache. A track format table associates track format codes with track format metadata. A determination is made as to whether the track format table has track format metadata matching track format metadata of a track staged into the cache. A determination is made as to whether a track format code from the track format table for the track format metadata in the track format table matches the track format metadata of the track staged. A cache control block for the track being added to the cache is generated including the determined track format code when the track format table has the matching track format metadata.

Examples may include a method of instantiating a virtual machine, instantiating a virtual device to transmit data to and receive data from assigned resources of a shared physical device; and assigning the virtual device to the virtual machine, the virtual machine to transmit data to and receive data from the physical device via the virtual device.

An embodiment of the invention may include a method, computer program product and computer system for a cable removal system. The embodiment may include a computing device that determines whether a user is contacting a network cable. The network cable is physical connection between a first device and a second device. The first device includes at least one network port. The embodiment may include a computing device determining whether an information transmission across the network cable can be rerouted based on determining that the user is contacting the network cable. The embodiment may include a computing device rerouting information transmission based on determining that the information transmission across the network cable can be rerouted. The embodiment may include a computing device alerting the user that there is no information transmission across the network cable based on rerouting the information transmission.

A data storage network is provided. The network includes a client connected to the data storage network; a plurality nodes on the data storage network, wherein each data node has two or more RAID controllers, wherein a first RAID controller of a first node is configured to receive a data storage request from the client and to generate RAID parity data on a data set received from the client, and to store all of the generated RAID parity data on a single node of the plurality of nodes.

A redundant processing fabric in an autonomous vehicle may include: processing, by a first processing unit of a plurality of processing units, sensor data from a first sensor of a plurality of sensors, where the plurality of processing units are coupled to the plurality of sensors via a switched fabric, wherein the plurality of processing units and plurality of sensors are included in the autonomous vehicle, wherein the sensor data corresponds to an environment external to the autonomous vehicle; determining a failure in processing the sensor data by the first processing unit; and severing, in the switched fabric, a first communications path between the first sensor and the first processing unit; and establishing, in the switched fabric, a second communications path between the first sensor and a redundant processing unit.

Provided are a computer program product, system, and method for communicating health status when a management console is unavailable for a server in a mirror storage environment. A determination at a first server is made that a management console is unavailable over the console network. The first server determines a health status at the first server and the first storage in response to determining that the management console cannot be reached over the console network. The health status indicates whether there are errors or no errors at the first server and the first storage. The first server transmits the determined health status to the second server over a mirroring network mirroring data between the first storage and a second storage managed by the second server. The determined health status is forwarded to an administrator.

A method for copying data from a primary thin-provisioned volume to a secondary thin-provisioned volume includes issuing a query to a primary storage system. The primary storage system hosts a thin-provisioned volume made up of multiple storage elements. The method returns, in response to the query, a reply indicating which storage elements in the thin-provisioned volume are backed by physical storage. In certain embodiments, the reply contains a bitmap having a bit for each storage element in the thin-provisioned volume. In other embodiments, the reply contains a starting address and ending address for each storage area that is backed, or not backed, by physical storage. The method then copies, from the primary storage system to a secondary storage system, data in only those storage elements that are backed by physical storage. A corresponding system and computer program product are also disclosed.