Exemplary methods, apparatuses, and systems include determining that data in a group of memory cells of a first memory device is to be moved to a spare group of memory cells. The group of memory cells spans a first dimension and a second dimension that is orthogonal to the first dimension and the spare group of memory cells also spans the first dimension and the second dimension. The data is read from the group of memory cells along the first dimension of the group of memory cells. The data is written to the spare group of memory cells along the second dimension of the spare group of memory cells.

An electronic computing system preserves a pre-error state of a processing unit by receiving a first stream of inputs; buffering the first stream of inputs to generate a buffered stream of inputs identical to the first stream of inputs; conveying the first stream to a primary instance of a first program; conveying the buffered stream to a secondary instance of the first program; executing the primary instance on the first stream in real time; executing the secondary instance on the buffered stream with a predefined time delay with respect to execution of the primary instance on the first stream; detecting an error state resulting from execution of the primary instance; and in response to detecting the error state, pausing the secondary instance and preserving a current state of the secondary instance, wherein the current state of the secondary instance corresponds to a pre-error state of the primary instance.

A circuit and method for verifying the operation of error checking circuitry. In one example, a circuit includes a memory, a first error checking circuit, a second error checking circuit, and a comparison circuit. The memory includes a data output. The first error checking circuit includes an input and an output. The input of the first error checking circuit is coupled to the data output of the memory. The second error checking circuit includes an input and an output. The input of the second error checking circuit is coupled to the data output of the memory. The comparison circuit includes a first input and a second input. The first input is coupled to the output of the first error checking circuit. The second input is coupled to the output of the second error checking circuit.

System and method for providing fault tolerance in virtualized computer systems use a first guest and a second guest running on virtualization software to produce outputs, which are produced when a workload is executed on the first and second guests. An output of the second guest is compared with an output of the first guest to determine if there is an output match. If there is no output match, the first guest is paused and a resynchronization of the second guest is executed to restore a checkpointed state of the first guest on the second guest. After the resynchronization of the second guest, the paused first guest is caused to resume operation.

A method and an apparatus for processing Bitmap data are provided by the embodiments of the present disclosure. The method for processing Bitmap data includes: dividing a Bitmap region in a disk into a plurality of partitions in advance and setting an update region in the disk; obtaining a respective amount of dirty data corresponding to each of the plurality of partitions in memory in response to a condition for writing back to the disk being satisfied; finding multiple second partitions with an amount of dirty data satisfying to be merged into the update region from the plurality of partitions according to the respective amount of dirty data corresponding to each of the plurality of partitions; and recording dirty data corresponding to the multiple second partitions in the memory into the update region in the disk through one or more I/O operations after merging.

A method includes obtaining audit records. Each of the audit records indicates a timestamp for a corresponding message, at least one event type code selected from a plurality of event type codes for a corresponding audit event of the corresponding message, and an identifier for a corresponding system entity associated with creation of the corresponding message. A number of audit records are aggregated over a period of time. An audit file is generated to include the number of audit records and integrity information. Storage of the audit file is facilitated by utilizing a name of the audit file.

An exemplary method includes sending a storage query to a plurality of storage nodes of a data storage system, the storage query including a data identifier of a data instance and an inquiry as to which of the storage nodes can store the data instance; receiving, in response to the storage query, a plurality of responses from a subset of storage nodes included in the plurality of storage nodes and that have at least a predetermined minimum amount of free storage space, the responses including information about each of the storage nodes included in the subset; selecting, based on the information included in the responses, multiple storage nodes included in the subset; and sending the data instance and the data identifier to the selected storage nodes for storage by the selected storage nodes.

A log acquisition method and device, a terminal device, a server and a computer readable storage medium are disclosed. The log acquisition method, which is applicable to the terminal device, includes: receiving a log acquisition instruction sent by the server (S101); establishing a data stream path with the server in response to the log acquisition instruction (S103); collecting real-time log data of the terminal device, and sending the real-time log data to the server through the data stream path (S104).

A log acquisition method and device, a terminal device, a server and a computer readable storage medium are disclosed. The log acquisition method, which is applicable to the terminal device, includes: receiving a log acquisition instruction sent by the server (S101); establishing a data stream path with the server in response to the log acquisition instruction (S103); collecting real-time log data of the terminal device, and sending the real-time log data to the server through the data stream path (S104).

Embodiments of the disclosure are drawn to apparatuses and methods for automatic soft post-package repair (ASPPR). A memory may receive a row address along with a signal indicating an ASPPR operation, such as a bad page flag being set. A word line engine generates a physical address based on the row address, and ASPPR registers stores the physical address. The time it takes from receiving the row address to storing the physical address may be within the timing of an access operation on the memory such as tRAS. The row address may specify a single page of information. If the bad page flag is set, then a subsequent PPR operation may blow fuses to encode the physical address stored in the ASPPR registers.