A storage assembly includes a plurality of multi-unit storage device is provided with a failover procedure that does not require hot-swap capability. Individual units are aggregated into a storage array by an aggregation procedure such as RAID. When a failure occurs data from the failed unit is transferred to a hot spare unit. Also, data from other units is transferred by simulating failure of those units and then the complete device can be removed. In small storage networks all the units may be...

A method for testing a memory circuit selects each cell in a region of a cell array as a target cell and performs a test cycle which includes selecting the target cell and neighboring cells which contain at least those cells for which is cannot be ruled out that their operation causes a fault-producing interaction. A data item is written to the target cell in order to produce one of two defined states. A write signal is applied to the neighboring cells in order to produce an undefined state whic...

An error-handling framework is provided for business process transactions. The error-handling framework facilitates coordination of the invocation of exception and compensation handlers in response to errors. The error-handling framework includes support for custom ordering of compensation actions, data flow into and out of compensation actions, and management of the process state visible to compensation actions.

A method and mechanism for managing traces with a computer system having a plurality of resources is disclosed. One or more conditions can be established for the computer system. The resources may then be monitored to determine whether the computer system has reached the one or more conditions. If so, then the parameters of the traces may be changed according to the one or more conditions that have been reached.

Disclosed is a method for continuing a write operation in a RAID device when parity cannot be generated. In cases where a read error or plurality of read errors prohibits the proper calculation of parity for a block of data, the parity block may be written as a bad block of data for subsequent read operations. The parity block may be forced to be a bad block of data by writing a recognizable pattern of data with a known bad error correction code or other method of forcing a read error to occur o...

A method for recovering from malfunctions in a primary agent module of a modular network device. The primary agent module is installed in a modular network device having a number of network interface modules housed in a chassis. A backup agent module is installed in the chassis when the modular network device is powered on. The backup agent module determines if the primary agent module has been installed when three dedicated signals of the primary agent module are asserted. The network device th...

A method for automatic peer to peer address switching, comprising: defining a secondary device as a logical alias of a primary device and performing the following steps concurrently for the primary-secondary device pair upon a determination that address switching is desired: terminating the device pair binding, terminating all logical alias bindings to the first device except the logical alias binding of the primary device to the secondary device, preventing the primary device from receiving I/O...

An apparatus and method for processing data in a receiver used in a wireless communication system is provided. The data processing method uses the receiver apparatus comprising a medium access control (MAC) layer and a radio link control (RLC) layer for processing data units. The data processing comprises communicating a data unit and a cyclic redundancy code (CRC) check result associated with the data unit from the MAC layer to the RLC layer; examining in the RLC layer that the CRC check result...

A method in which data is stored or transferred together with an information message on the basis of which it can be determined in which order, at which time, and/or during which time span, the data concerned has been acquired, stored or transferred.

A network of microcontrollers for monitoring and diagnosing the environmental conditions of a computer is disclosed. The network of microcontrollers provides a management system by which computer users can accurately gauge the health of their computer. The network of microcontrollers provides users the ability to detect system fan speeds, internal temperatures and voltage levels. The invention is designed to not only be resilient to faults, but also allows for the system maintenance, modificatio...