A memory system having a flexible read reference is disclosed. The system includes a memory partition, a failcount component, and a controller. The memory partition includes a plurality of memory cells. The failcount component is configured to generate failcounts in response to read operations of the memory partition. The controller is configured to calibrate a reference value for the memory partition by utilizing the failcounts.

A method for diagnosing memory, performed by a storage system, is provided. The method includes writing and reading through a communication channel to and from flash memory of each of a plurality of flash memory devices and a static random-access memory (SRAM) register of each of the plurality of flash memory devices. The method includes analyzing errors in read data from the reading through the communication channel, identifying types of errors among flash memory errors, SRAM register errors, and communication channel errors, based on the analyzing, and indicating at least one error and type of error from the read data.

The present disclosure includes systems and methods for reducing rewrite overhead in a sequential access storage system. The method may comprise writing a data set to a sequential access medium using a magnetic head, wherein the data set comprises a plurality of encoded data blocks, classifying each of the plurality of encoded data blocks on the sequential access medium into one of at least three classes of write quality, and rewriting the encoded data blocks in a rewrite area of the sequential access medium based at least in part on the write quality class. In some embodiments, the at least three classes of write quality may comprise a hard rewrite class for which rewrites are necessary to prevent data loss, a soft rewrite class for which rewrites are desirable but not necessary, and a no rewrite class for which no rewrite is needed or desired.

Effects of a physical memory fault are mitigated. In one example, to facilitate mitigation, memory is allocated to processing entities of a computing environment, such as applications, operating systems, or virtual machines, in a manner that minimizes impact to the computing environment in the event of a memory failure. Allocation includes using memory structure information, including, information regarding fault containment zones, to allocate memory to the processing entities. By allocating memory based on fault containment zones, a fault only affects a minimum number of processing entities.

Disclosed are: an image processing device; an operation method for the image processing device; and a computer-readable recording medium. According to an embodiment of the present disclosure, the operation method for the image processing device, which can be connected to a storage medium storing a file system, can comprise the steps of: communicating with a storage medium; storing, in a file system, logic information on the bad sector of the storage medium; and blocking the bad sector from accessing data on the basis of the logic information when recording data in the storage medium or reading the recorded data according to a request of a user.

To realize efficient access in case of restoring read failure data by RMW at time of data rewriting, a recording apparatus includes a write/read unit capable of performing data writing in a second data unit, in which a plurality of first data units of a predetermined amount of data are consecutive, and data reading in the first data unit with respect to a recording medium and a control unit. In response to a rewrite instruction of data, the control unit instructs the write/read unit to generate write data in the second data unit using update data relevant to the rewrite instruction and recorded data read out from the recording medium and to write the write data at a non-recording address on the recording medium, and generates or updates replacement information for associating address at which the write data is written, as a replacement destination, with address of a replacement source.

A method comprises creating calibration data using a first control circuitry of an apparatus, replacing the first control circuitry with a second control circuitry in the apparatus, and operating the apparatus with the second control circuitry using the calibration data. As an example, the apparatus may be a disc drive. The second control circuitry may be substantially similar to the first control circuitry such that calibration measurements using the first control circuitry are applicable to the second control circuitry. The first control circuitry may be included in a circuit board that is replaced with a second circuit board including the second control circuitry. In an exemplary embodiment, the second circuit board may include different and/or additional components relative to the first circuit board, such as integrated video inputs and/or video control circuitry.

A media player may include a media reader to read media content from a recording medium inserted into the media reader. The media player may also include a media analysis component to identify one or more valid portions of the recording medium containing media content and one or more invalid portions of the recording medium without media content. In one embodiment, the media player includes an archival component to store the media content from the one or more valid portions in a storage medium and a playback component to play back the one or more valid portions of the media content from the storage medium concurrently with the identification of the one or more valid portions by the media analysis component and the storage of the media content by the archival component.

The present disclosure includes systems and methods for reducing rewrite overhead in a sequential access storage system. The method may comprise writing a data set to a sequential access medium using a magnetic head, wherein the data set comprises a plurality of encoded data blocks, classifying each of the plurality of encoded data blocks on the sequential access medium into one of at least three classes of write quality, and rewriting the encoded data blocks in a rewrite area of the sequential access medium based at least in part on the write quality class. In some embodiments, the at least three classes of write quality may comprise a hard rewrite class for which rewrites are necessary to prevent data loss, a soft rewrite class for which rewrites are desirable but not necessary, and a no rewrite class for which no rewrite is needed or desired.

The optical disk device performs recording/reproducing of data by a predetermined recording block on the track of an optical disk. The device has a recording unit, an optical-head, and a failure detection unit. The recording unit generates a recording signal by modulating the data. The optical-head records data on the track by optical beam emission to the track according to the recording signal, and detects light reflected off the track and then generates a detection signal based on the reflected light. The failure detection unit detects an abnormal condition based on the detection signal changed from a normal condition. If the sum of duration of an abnormal condition in the recording block is equal to or greater than a first time-length, the failure detection unit determines that the recording block has a flaw.