According to embodiments of the present invention, machines, systems, methods and computer program products for controlling two or more remote sessions are provided. Two or more remote sessions are synchronized to control each session using a common interface. One or more executable commands are sent to each remote session at substantially the same time using the common interface to control operation of that remote session. Data generated by each remote session from executing the commands is received and analyzed to identify one or more differences in data generated by each remote session. The one or more identified differences in the data are displayed on the common interface. An indication may be provided regarding possible root causes of the differences in the data generated by each remote session. Each remote session includes a program debug session. A report comprising the one or more identified differences in the data may be generated.

According to embodiments of the present invention, machines, systems, methods and computer program products for controlling two or more remote sessions are provided. Two or more remote sessions are synchronized to control each session using a common interface. One or more executable commands are sent to each remote session at substantially the same time using the common interface to control operation of that remote session. Data generated by each remote session from executing the commands is received and analyzed to identify one or more differences in data generated by each remote session. The one or more identified differences in the data are displayed on the common interface. An indication may be provided regarding possible root causes of the differences in the data generated by each remote session. Each remote session includes a program debug session. A report comprising the one or more identified differences in the data may be generated.

Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for enhancing margin in a serial data transfer.

A transition tool creates a reversion snapshot of storage objects and data in a copy-free transition method. The storage objects are transitioned from the formats that the source storage system uses to the formats that the destination storage system uses. During this transition, the transition tool can prevent automatic functions of the source and destination storage systems from deleting the reversion snapshots until a request to commit the transition is received. The transition tool can also monitor the amount of storage space available to each of the storage objects. Upon detecting that the amount of storage space is below a threshold, the transition tool can take the storage objects offline so that they are unavailable to client access. In response to receiving a rollback request, the transition tool can perform operations to restore the reversion snapshot of the storage objects and data on the source storage system.

A clock data recovery circuit includes a deglitch filter circuit and a timer circuit. The deglitch filter circuit is configured to remove pulses of less than a particular duration from a data signal to produce a deglitched data signal. The timer circuit is coupled to the deglitch filter, and is configured to compare a duration of a pulse of the deglitched data signal to a threshold duration, and identify the pulse as representing a logic one based on the duration of the pulse exceeding the threshold duration.

A method for detecting an error in reading a data, includes in a step a) storing a first copy of the data item in a first area of an electronic memory and storing of a second copy of the data item in a second area. Step b) includes reading values of the first and second copies of the data item and in step c) there is a comparison of the read values of the first and second copies of the data item. In step d) if the read values of the first and second copies are identical, then no error is detected. In step e) if the read values of the first and second copies are different, then the method includes repeating steps b) and c). In step f), if the values read in step e) are identical, then an error in the reading of the data item is detected and, otherwise, no error is detected.

Techniques involve managing a storage system. In accordance with the techniques, a plurality of copies of metadata of the storage system are read from a plurality of storage devices in a resource pool of the storage system. The resource pool includes a first number of storage devices, and the metadata describes configuration information of the storage system. A second number of copies are selected from the plurality of copies based on version information in the plurality of copies, where the second number of copies comprises the metadata in the same version. It is determined whether a relation between the first number and the second number satisfies a predetermined condition. The second number of copies are identified as trusted metadata based on determining the relation satisfies the predetermined condition. With the foregoing example implementation, the metadata in the storage system may be managed with higher reliability.

Conventional semiconductor devices are problematic in that an operation cannot be continued in the event of a failure of one of CPU cores performing a lock step operation and, as a result, reliability cannot be improved. The semiconductor device according to the present invention includes a computing unit including a first CPU core and a second CPU core that perform a lock step operation, wherein the first CPU core and the second CPU core respectively diagnose failures of internal logic circuits, and a sequence control circuit switches the CPU core that outputs data to a shared resource, in the computing unit based on the diagnose result.

A circuit and methods of operation thereof are provided for robust protection against soft errors. The circuit includes a first set of storage elements coupled to and configured to sample a set of data inputs at a first set of times. The circuit includes a second set of storage elements coupled to and configured to sample the set of data inputs at a second set of times. A first parity generator generates a first parity check for the set of data inputs and a second parity generator generates a second parity check for output of the first set of storage elements. An error correction unit compares the first parity check and the second parity check to detect occurrences of error conditions in the circuit. The error correction unit may control output or operating characteristics of the circuit as a result of error conditions detected.

A non-volatile static random access memory has an operating mode, a data backup mode and a data restore mode. The non-volatile static random access memory includes a memory cell and a power saving module. The memory cell includes a latch, a set of latch switch units, a set of backup memory units, a set of backup activation units, a backup setting unit and a driving signal transmission unit. The power saving module includes a control switch unit, a backup determination unit and a restore switch unit. When backup data is different from data stored in the latch, a backup driving signal is generated by a node voltage of the backup memory units and outputted to a backup determination unit, which drives the backup setting unit to turn on according to the backup driving signal, so as to change the backup data in the backup memory units and ensure correct backup.