Abstract:
Systems and methods associated with partially sorted log archives are disclosed. One example method for restoring a database includes restoring members of a set of database pages originally stored on a failed media device in the database. Restoring a member of the set of pages includes loading an image of the member of the set of database pages from a backup. Restoring the member of the set of database pages also includes applying log entries associated with the member of the set of database pages to the image. The log entries may have been recorded after the image of the member of the set of database pages was taken. The log entries may be retrieved from a partially sorted log archive. Restoring the member of the set of database pages also includes writing the database page to a replacement media.
Abstract:
데이터 처리 시스템 및 방법이 개시된다. 본 발명의 일 실시예에 따른 데이터 처리 시스템은, 입력 데이터, 및 상기 입력 데이터의 구조에 관한 메타 데이터를 입력받고, 상기 메타 데이터를 기반으로 상기 입력 데이터가 정상 데이터인지 또는 비정상 데이터인지 여부를 판별하는 데이터 판별부; 상기 정상 데이터가 저장되는 제 1 저장부; 상기 비정상 데이터가 저장되는 제 2 저장부; 및 상기 정상 데이터와 동일한 구조를 갖도록 상기 제 2 저장부에 저장된 상기 비정상 데이터를 수정하고, 수정된 상기 비정상 데이터를 상기 제 1 저장부에 저장하는 데이터 처리부를 포함한다.
Abstract:
Example embodiments relate to continuous integration with reusable context aware jobs. An example method may include accessing a build pipeline that includes multiple jobs that are reusable and configurable. The method may include retrieving a version of code for a software application, where the version of code is related to a context. The method may include configuring the jobs of the build pipeline according to the context. The method may include testing the version of code using the build pipeline with the configured jobs.
Abstract:
본 발명은 캐시에 있어, 더티(dirty) 데이터를 저장하는 신뢰 캐시; 및 클린(clean) 데이터를 저장하는 비신뢰 캐시;를 포함하되, 상기 캐시는 상기 신뢰 캐시와 상기 비신뢰 캐시에 기지정된 비율로 캐시 영역을 할당하여 동작을 시작하며, 상기 비신뢰 캐시는 상기 신뢰 캐시보다 낮은 전압이 공급되는 캐시를 제공한다.
Abstract:
A technique includes receiving an alert indicator in a distributed computer system that includes a plurality of computing nodes coupled together by cluster interconnection fabric. The alert indicator indicates detection of a fault in a first computing node of the plurality of computing nodes. The technique indicates regulating communication between the first computing node and at least one of the other computing nodes in response to the alert indicator to contain error propagation due to the fault within the first computing node.
Abstract:
Both rewriting and error correction are technologies usable for non-volatile memories, such as flash memories. A coding scheme is disclosed herein that combines rewriting and error correction for the write-once memory model. In some embodiments, code construction is based on polar codes, and supports any number of rewrites and corrects a substantial number of errors. The code may be analyzed for a binary symmetric channel. The results can be extended to multi-level cells and more general noise models.
Abstract:
Example methods, systems, and apparatus to provide selective memory error protection and memory access granularity are disclosed herein. An example system includes a memory controller to determine a selected memory mode based on a request. The memory mode indicates that a memory page is to store a corresponding type of error protection information and is to store data for retrieval using a corresponding access granularity. The memory controller is to store the data and the error protection information in the memory page for retrieval using the error protection information and the access granularity.
Abstract:
Изобретение относится к системам обнаружения и исправления ошибок данных на носителях информации. Разделяют область памяти запоминающего устройства на информационные зоны одинакового размера, выбранные из разных частей запоминающего устройства, и контрольные зоны, также выбранные из различных частей запоминающего устройства. Записывают каждую группу подлежащих запоминанию данных в виде набора кодовых слов в соответствующую информационную зону. Находят с помощью вычислительного блока три эталонных контрольных суммы S 0 ,S 1 ,S 2 , каждую по соответствующей заранее установленной формуле, записывают эталонные контрольные суммы в виде кодового слова с тем же номером в соответствующую контрольную зону. При отказе или повреждении части запоминающего устройства и при выявлении искажений данных, вычисляют с помощью вычислительного блока текущие контрольные суммы по формулам для каждого набора кодовых слов с одинаковыми номерами во всех информационных зонах. Используют значения хранящихся эталонных контрольных сумм и значения текущих контрольных сумм для восстановления утраченных данных, при решении систем уравнений. Число уравнений в системе зависит от количества отказавших или поврежденных зон запоминающего устройства.
Abstract:
A method for improving address integrity in a memory system generates error correction data corresponding to a memory address. The error correction data is transmitted to a memory device over an address bus coincident with transmitting a no-operation instruction over a command bus.
Abstract:
A system (1 ) for controlling a traffic signal includes a traffic controller (6) which has a communications interface (8) having a 25-pin RS232 communication port (9) for physically stably engaging with an external memory device in the form of a self-contained and portable memory module (10). Module (10) contains first data (11) indicative of the predetermined profile and second data (12) indicative of the coding of the first data. Controller (6) includes an on-board memory device (15) containing third data (13) and fourth data (14) that are derived from the first data (11) and the second data (12). A processor (16) is responsive to third data (13) to control the sets of traffic lights (3) and (4) in accordance with the predetermined profile, and responsive to third data (13) and the fourth data (14) for selectively raising an alert signal.