Abstract: In a transmission error logging device, method and computer-readable medium for logging transmission errors that occur on a high speed transmission route of a medical technology diagnostic apparatus, the in-feed port for a signal is provided on the high speed transmission route and an error signal is generated upon detection of an error. The transmission volume is detected by a transmission volume counter and the number of errors is detected by a transmission error counter. The transmission volume counter makes a transmission volume count, representing the transmission volume, available as an output from the transmission volume counter, and the transmission error counter makes a count of the number of errors detected by the error detection device available at an output of the transmission error counter.

Abstract: In a data relay device, it is judged whether a destination address of data received from an adapter matches with an address specified for an interruption process. Only data that is judged appropriate is sent to a controller.

Abstract: In one embodiment, a system comprises a plurality of nodes. On each node, a storage virtualization component may receive the I/O operations generated from local applications on the node. The storage virtualization component may transmit the I/O operation, and detect any failures that occur in the I/O operations. If a failure is detected, the storage virtualization component may cooperate with other storage virtualization components on other nodes to successfully complete an I/O operation that experiences a failure. In one embodiment, if the I/O operation is successful on a remote node, the storage virtualization component may migrate the application that sourced the I/O operation to the remote node. In other embodiments, the storage virtualization component may monitor I/O operations and migrate the application after a pattern of local failures and successes on the remote node.

Abstract: A plurality of processing nodes in a storage system are partitioned into a plurality of logical processing units, wherein the plurality of logical processing units can respond to I/O requests from a host coupled to the storage system. At least two logical processing units are grouped, wherein data in a first storage coupled to a first logical processing unit of the least two logical processing units is mirrored by data in a second storage coupled to the second logical processing unit of the at least two logical processing units. In response to a failure of the first logical processing unit, an I/O request from the host is responded to via the second logical processing unit.

Abstract: In addition to setting tasks and maintenance tasks for each portion of a storage apparatus, for which ease of operation is demanded, a storage system enables notification of a monitoring and maintenance terminal, for which high reliability is demanded, of fault information, without detracting from reliability. The functions of a SVP 23 and SVP 25 are functions to monitor the storage apparatus 3, and functions for notification to a remote maintenance center terminal 13 or similar, for which high reliability is demanded. The notification function involves notification to a remote maintenance center terminal 3 or similar of a fault or other event in the storage apparatus 3, detected by the monitoring function. The functions of the SVP 23 and SVP 25 are limited to functions for notification of faults in the storage apparatus 3, notification of information other than faults, and SNMP functions, so that the volume of the OS and other programs installed on the SVP 23 and SVP 25 is reduced.

Abstract: A storage server stores data in a redundancy group of mass storage devices according to a data redundancy scheme. The redundancy scheme enables reconstruction of all data stored in the redundancy group if N or fewer mass storage devices in the redundancy group contain erroneous data, where N is at least 2. In response to determining that the redundancy group contains erroneous data, N?1 mass storage devices in the redundancy group can be specifically identified as containing the erroneous data.