Abstract: Examples of the disclosure include a power system comprising an input to receive input power, an output to provide power to a load, a sensor configured to provide load information indicative of power drawn by the load, a plurality of power modules, each having a power module input configured to be coupled to the input, and a power module output configured to be coupled to the output, and a controller coupled to the power modules and the sensor, and being configured to control the power modules to provide power to the output, receive the load information from the sensor, select, based on the load information, at least one power module to maintain in an active state to provide power to the output, and deactivate each power module other than the at least one power module based on selecting the at least one power module to maintain in the active state.

Abstract: A data storing method for a solid state drive is used to preserve data integrity after a power failure. The solid state drive has a flash memory with plural blocks. Each block includes plural pages. One of the plural blocks is set as an old open block. The data storing method includes the following steps. Firstly, the solid state drive is powered on again. Then, the valid data in the old open block are stored into a new open block.

Abstract: Provided is a storage apparatus for providing a logical storage area as a data storage area to an external apparatus, comprising: a physical storage medium for creating the logical storage area; first and second storage control modules each of which is communicatively coupled to the physical storage medium to control data input/output processing between the external apparatus and the logical storage area; and first and second power supply modules each of which supplies power to the physical storage medium and the first and second storage control modules and includes a blower for generating a cooling airflow to cool down the physical storage medium and the first and second storage control modules, wherein the blower of the first power supply module generates a first cooling airflow which flows through the physical storage medium, the first storage control module, and the first power supply module, the blower of the second power supply module generates a second cooling airflow which flows through the physical s

Abstract: In control of the disk array device (backup system), when a blackout occurs, the disk array device is first operated in a first method to backed up a main memory by using a power supply from a battery. During the first method, a blackout continuous time and the like are integrated, and at a timing in which the integrated value satisfies a condition, the first method is then shifted to the second method to evacuate data from the main memory onto a nonvolatile memory based on a power supply.

Abstract: A circuit for displaying failure information of a power supply unit supplying power to a central processing unit includes a controller including a random access memory (RAM) to store failure information of the power supply unit, a DC power circuit, a processing unit connected to the controller for reading the fault reasons stored in the RAM, and a display unit to display the fault reasons. When the power supply unit does not operate, the DC power circuit supplies power to the controller, such that fault reasons stored in the RAM will not be lost.

Abstract: A data center may use generators for backup power, where the backup generators are able to serve less than the maximal power load of the data center. The use of generators that can serve less than the maximal power load may be recognized by, and addressed by, the power policy for the data center. When utility power is lost, the power policy manager may detect that the data center is switching to generator power, and may have knowledge of the capacity of those generators. If the capacity is less than the maximal power load of the data center, the power policy manager may shed load by throttling equipment in the data center to lower power levels. The policy may specify which pieces of equipment are to be throttled. When utility power is restored, the throttling of the equipment may be removed by the power policy manager.

Abstract: A method and apparatus that allow a user to easily operate a self-service device despite the presence of damage is provided. Anticipated damage includes extreme environmental conditions such as earthquakes, flooding, strong winds, tsunamis, etc. These conditions may cause a failure in a portion of the self-service device. Improved ruggedness and redundant components are coordinated by suitable software to provide service despite damage to the self-service device. Additionally, access to some user accounts despite the loss of connectivity to a server maintaining user accounts is provided.

Abstract: In one embodiment, a particular node in a computer network, that is, one receiving electrical power from a grid source, may determine routing metrics to a plurality of neighbor nodes of the particular node in the computer network. In addition, the node also determines power grid connectivity of the plurality of neighbor nodes. Traffic may be routed from the particular node to one or more select neighbor nodes having preferred routing metrics, until a power outage condition at the particular node is detected, at which time the traffic (e.g., last gasp messages) may be routed from the particular node to one or more select neighbor nodes having diverse power grid connectivity from the particular node. In this manner, traffic may be routed via a device that is not also experiencing the power outage condition.

Abstract: A method of managing the workload in a computer system having one or more semi-redundant hardware components is provided. The method comprises detecting loss or degradation of the level of performance of one or more of the semi-redundant hardware components, identifying hardware components affected by the loss or degradation, migrating a critical job from an affected hardware component to an unaffected hardware component, and performing less-critical jobs on an affected hardware component. Loss or degradation of the semi-redundant component reduces the capacity of affected hardware components in the computer system without entirely disabling the computer system. Jobs identified as critical run on hardware components having the most capacity and reliability, while less-critical jobs use the remaining capacity of affected hardware components. Examples of semi-redundant hardware components include a memory module, CPU core, Ethernet port, power supply, fan, disk drive, and an input output port.

Abstract: Power-backup capabilities are provided by implementing a variety of different methods, systems and devices. According to one such implementation, a solid-state memory device is implemented with a primary power source that provides primary power. A secondary power source provides secondary power. A power controller provides the primary power to an operating power circuit. The secondary power is provided by enabling a secondary switch located between the secondary power source and the operating power circuit. A solid-state memory uses power from the operating power circuit as a primary source of power when accessing stored data and retains data in the absence of power being provided by the operating power circuit. A memory controller facilitates access to the stored data. In response to problems with the primary power source, pending writes are completed to the solid-state memory circuit. A timing circuit substantially delays full enablement of the secondary switch.

Abstract: A system and method for registration of a network access device including a processor configured to identify power loss at a network access device, initiate backup power at the network access device, identify when the backup power at the network access device decreases to or below a first predetermined level, and identify when backup power at the network access device is restored to or above a second predetermined level, and a transmitter configured to transmit, to a server, a registration extension message to reconfigure conditions for handling inbound communications and a registration extension cancellation message to restore original conditions for handling inbound communications.

Abstract: A server chassis includes an uninterruptible power supply, and a server including a controller. The uninterruptible power supply is configured to provide a reserve power when a primary power is lost, and to send a power loss signal when the primary power is lost. The controller is configured to receive a desired server uptime, to receive an indication that a power limit for the server is fixed or decreasing over the desired server, to receive the power loss signal from the uninterruptible power supply, to send a power capacity query to the uninterruptible power supply, to receive a reserve power capacity of the uninterruptible power supply in response to the power capacity query, to calculate the power limit for the server based on the reserve power capacity of the uninterruptible power supply and on the desired server uptime, and to enforce the power limit on the server.

Abstract: Embodiments of the invention are directed to systems and methods for reducing an amount of backup power needed to provide power fail safe preservation of a data redundancy scheme such as RAID that is implemented in solid state storage devices where new write data is accumulated and written along with parity data. Because new write data cannot be guaranteed to arrive in integer multiples of stripe size, a full stripe's worth of new write data may not exist when power is lost. Various embodiments use truncated RAID stripes (fewer storage elements per stripe) to save cached write data when a power failure occurs. This approach allows the system to maintain RAID parity data protection in a power fail cache flush case even though a full stripe of write data may not exist, thereby reducing the amount of backup power needed to maintain parity protection in the event of power loss.

Abstract: A system and method are disclosed for balancing the requirements of high availability achieved by redundant active components and power saving achieved by less active components. The requirement for high availability can be expressed by the recovery time objective (RTO) which specifies the amount of time it takes to recover from a failure in the system. Based on the configured RTO, the system configures the most appropriate power mode.

Abstract: An apparatus includes a data manager and interface logic with a plurality of interface ports including at least one network interface port. The data manager and interface logic is operative to obtain digital and analog data, via the plurality of interface ports, from a plurality of digital and analog device types, where the data includes device operating parameters and alert condition notifications related to device faults or potential device failure. The data manager and interface logic is also operative to write and email a report conforming to a plurality of configurable report settings in response to occurrence of a device alert condition or a specified reporting interval, obtain updates to the device operating parameters from a remote device over the at least one network interface port, and provide the updates to corresponding devices over the plurality of interface ports.

Abstract: An information processing apparatus includes a controller, a plurality of electric power supply units and a backup electric power supply unit that supply electric power to the controller. The controller detects a malfunction occurring in the plurality of electric power supply units, stops electric power supply from the plurality of electric power supply units, starts electric power supply from the backup electric power supply unit when a malfunction is detected, identifies an electric power supply unit having a malfunction from the plurality of electric power supply units, disconnects the identified electric power supply unit, resumes electric power supply from an electric power supply unit determined to function normally and stops the electric power supply from the backup electric power supply unit when the electric power supply unit having the malfunction is disconnected.

Abstract: In order to avoid loss of data, computer systems are often connected to a UPS which provides power backup in case of an emergency shutdown resulting from a power failure. However, as UPS units are costly, they take up a lot of physical space and can provide power for a limited period of time, it would be advantageous to improve the efficiency of UPS devices and enable to utilize as much as possible of the UPS power in order to save data to a permanent storage before shutdown. There is provided a method and system for controlling the frequency of one or more processors in computer systems, responsive to an indication of a power failure, and thereby reduce its power consumption, so as to provide more power for writing write-pending data to a non-volatile data storage.

Abstract: An image processing apparatus includes: a switch of a main power supply unit that is switched between ON and OFF in response to a user's operation so as to switch the power supply between a supply of power and an interruption of the supply; a first notification unit that sends an interrupt request notification for requesting to interrupt a process in a recoverable way to all of or a part of the applications being run if the switch of a main power supply unit is turned off; and a power supply control unit that interrupts the supply from the power supply when a time lapse, that is measured since a time when the notification unit has sent the interrupt request notification, exceeds a first predetermined time.

Abstract: A network switch apparatus includes a housing, a first network port, a second network port, a first instrument port, an active component inside the housing, wherein the active component is configured to receive packets from the first network port, and pass at least some of the packets from the first network port to the first instrument port, a connector for supplying power from a power supply to the active component, and a backup power supply for supplying power to the active component when the active component does not receive power from the power supply.

Abstract: An assembly includes a plurality of power supply units for producing an output-side operating voltage from at least one input-side supply voltage and at least one power-consuming component which is electrically coupled to the plurality of power supply units. The assembly has a controller arranged to monitor the function of the plurality of power supply units and to switch the power-consuming from a normal operating mode into a restricted operating mode, whose power consumption is lower than that of the first operating mode, when at least one power supply unit fails or to activate a previously deactivated power supply unit.

Abstract: To shorten the time from power restoration to the resumption of business operation. During a power failure, a memory controller saves configuration information and directory information of a shared memory to a nonvolatile memory, and saves data of a cache memory to the nonvolatile memory. During power restoration from a power failure, the memory controller returns information of the nonvolatile memory to the shared memory so that it can be updated before the lapse of the initialization time, the micro processor executes online processing based on information of the shared memory, and the memory controller 70 controls the storage area of the cache memory so that it will become gradually writable according to the battery capacity of the battery if the battery capacity of the battery is still gradually increasing even after the lapse of the initialization time.

Abstract: An embodiment is a method and apparatus to save data during power failure. A power supply generator generates operating voltages to a circuit from a generator supply source. A power monitor monitors a normal supply voltage and a backup supply voltage to provide a normal supply voltage to the generator supply source in a normal mode and to provide a backup supply voltage to the generator supply source in a power failure mode. A data transfer circuit transfers data from a volatile memory in the circuit to a non-volatile memory during the power failure mode.

Abstract: A power supply control device including: a control unit which controls power supplied from a first device to a disk array unit accessible from host devices through a network device; and a second device which supplies power to the disk array unit and the power supply control device when the power supply from the first device is disconnected, the control unit including: a collecting unit which collects power supply fault information regarding at least one of the host devices and the network device; a starting unit which starts power supply from the second device when power supplied from the first device is disconnected; and a transmitting unit which transmits a notification to the disk array unit in response to collection of power supply fault information after starting the power supply from the second device, the notification indicating that the power supplied from the first device is disconnected.

Abstract: Mechanisms are provided for performing a failover operation of an application from a faulty node of a high availability cluster to a selected target node. The mechanisms receive a notification of an imminent failure of the faulty node. The mechanisms further receive health information from nodes of a local failover scope of a failover policy associated with the faulty node. Moreover, the mechanisms dynamically modify the failover policy based on the health information from the nodes of the local failover scope and select a node from the modified failover policy as a target node for failover of an application running on the faulty node to the target node. Additionally, the mechanisms perform failover of the application to the target node based on the selection of the node from the modified failover policy.

Abstract: A storage system has a first power supply unit, a second power supply unit for supplying electronic power to the storage system when the first power supply unit is not supplying electronic power to the storage system, a storage for storing data, a first memory for storing data, a control unit for reading out data stored in the storage and writing the data into the first memory, and reading out data stored in the first memory and writing the data into the storage, a second memory for storing cache data, a table indicating whether each of the data stored in the first memory is to be evacuated to the second memory or not, respectively, and an evacuating unit for evacuating the data stored in the first memory to the second memory in reference to the table when the second power supply unit is supplying electronic power to the storage system.

Abstract: An apparatus includes a cache memory for storing user data and control information of the apparatus, a nonvolatile memory and a processor for executing a process including when the power failure occurs, saving the user data and the control information stored in the cache memory into the nonvolatile memory, when the power failure recovers, restoring the data stored in the nonvolatile memory into the cache memory, and erasing the data stored in the nonvolatile memory after restoring the data into the cache memory and when another power failure occurs during erasing the data stored in the nonvolatile memory, erasing the control information stored in the nonvolatile memory if the control information is remained in the nonvolatile memory and saving, into the nonvolatile memory, the updated control information stored in the cache memory and the user data which has been erased from the nonvolatile memory.

Abstract: A user device is provided. The device includes a main power supply, and an auxiliary power supply. The main power supply provides a main power. The auxiliary power supply cuts off the main power according to a power level of the main power supply and provides an auxiliary power upon Sudden Power-Off (SPO).

Abstract: A power over Ethernet (PoE) powered device with power fallback states. A powered device can be powered using a primary local power source and a secondary PoE power source. To enable consistent behavior by the powered device, a controlled power fallback state can be defined that would ensure limited functionality in the powered device upon a failure of the primary local power source. For example, the limited functionality could include a communication channel to the switch, diagnostic circuitry, etc.