Embodiments of a multiple sign controller are generally described herein. Many embodiments include a multiple sign controller system. In some embodiments, the multiple sign controller can comprise a computer, a single instance of an operating system configured to run on the computer, two or more virtual sign controller instances, one or more physical communication ports coupled to the computer, and two or more virtual ports configured to run on the single instance of the operating system. In many embodiments, a first virtual port of the two or more virtual ports can be associated with a first virtual sign controller instance of the two or more virtual sign controller instances. Other embodiments may be described and claimed.

A method, apparatus, and system are directed toward configuring a dependency relationship between resources in a cluster. A dependency relationship between a dependent in a first resource group and a dependee in a second resource group is declared. The dependency relationship might include a locality based qualifier and/or a time based qualifier. The locality based qualifier includes a Local Node, Any Node, or From Resource Group Affinity relationship. The time based dependency qualifier includes a Strong dependency, Weak dependency, Online Restart dependency, or Offline Restart dependency. The declaration might be made using a graphical user interface, property list, configuration file, or the like. A candidate node on which to activate the first resource group is determined. The dependent is brought online on the candidate node based on whether an instance of the dependee is online on a node specified by the locality based qualifier.

A multi-channel control system includes at least a primary control microprocessor and a back-up control microprocessor operable to control a device. The primary control microprocessor and the back-up control microprocessor assert control over a controlled device according to a locally stored method of controlling a back-up microprocessor assumption of control of a device.

In an example embodiment, a disaster is detected at a primary data center and, in response to the detection, a system switches over from the primary data center to a secondary data center such that searches from one or more client applications are routed to the secondary data center. Then, for each document stored in a search core of the secondary data center: a count is requested for the document from a first client application, it is determined whether the count for the document from the first client application matches a count for the document from the search core of the secondary data center, and, in response to a determination that the count for the document from the first client application does not match a count for the document from the search core of the secondary data center, a full publish for the document is requested from the first client application.

Methods and apparatuses for triggering backups of virtual machines using high-availability applications in the virtual machines are described herein. Also, methods and apparatuses for restoring individual components that are backed up within an application infrastructure within the virtual machine are described herein.

A non-transitory computer-readable storage medium storing a replication program that causes a first information processing apparatus to execute a process, the process including storing update information to a first shared storage area of a first virtual machine, the update information indicating update of data stored in a storage area of a second virtual machine, when an additional update information is stored in the first shared storage area, transmitting the additional update information to a third virtual machine, and causing the third virtual machine to store the additional update information in a second shared storage area of the third virtual machine, the additional update information stored in the second shared storage area being used to update data stored in a storage area of the fourth virtual machine.

Examples perform live migration of VMs from a source host to a destination host using destructive consistency breaking operations. The disclosure makes a record of a consistency group of VMs on storage at a source host as a fail-back in the event of failure. The source VMs are live migrated to the destination host, disregarding consistency during live migration, and potentially violating the recovery point objective. After live migration of all of the source VMs, consistency is automatically restored at the destination host and the live migration is declared a success.

Methods and apparatus for monitoring remotely located objects with a system including at least one master data collection unit, remote sensor units, and a central data collection server are described. The master unit is configured to monitor any object, mobile or stationary, including monitoring multiple remote sensor units associated with the monitored objects. The master unit may be in a fixed location or attached to a mobile object. The master unit is configured for monitoring objects that enter and leave an area. The master unit may act as a parent controller for one or more child devices including remote sensors or monitors of measurable conditions including environmental conditions, substance identification, product identification, and/or biometric identification. The master unit may discover remote sensor units as they enter or leave the area where the master unit is located. The master unit can be remotely reprogrammed such as with authenticated instructions.

The invention is part of the field of computer technology. It describes the architecture of a secure automation system and a method for safe autonomous operation of a technical apparatus, in particular a motor vehicle. The architecture disclosed herein solves the problem that any Byzantine error in one of the complex subsystems of a distributed real-time computer system, regardless of whether the error was triggered by a random hardware failure, a design error in the software or an intrusion, must be recognized and controlled in such a way that no security-relevant incident occurs. The architecture includes four largely independent subsystems which are arranged hierarchically and each form an isolated Fault-Containment Unit (FCU). At the top of the hierarchy is a secure subsystem, which executes simple software on fault-tolerant hardware. The other three subsystems are insecure because they contain complex software executed on non-fault-tolerant hardware.

A storage system with storage drives and a processing device establishes resiliency groups of storage system resources. The storage system determines an explicit trade-off between data survivability over resource failures and data capacity efficiency, for the resiliency groups. Responsive to adding at least one storage drive, the storage system establishes re-formed resiliency groups according to the explicit trade-off, without decreasing data survivability. The storage system may bias to have more and narrower resiliency groups to increase mean time to data loss.