摘要:
A method for managing a group of targets is provided. The method includes: receiving a request to update a x'th generation copy of a data entity, where x is a positive integer. Then applying an update function responsive to x such as to update a first sub-group of targets. Then receiving a request to read a y'th generation copy of the data entity and (iv) applying a retrieve function responsive to y such as to search for the y'th generation copy of the data entity in a second sub-group of targets. The first and second sub-groups intersect only once and only if y does not exceed x.
摘要:
A method for increasing efficiency of interaction by an operator with data on a computer display includes presenting the data to the operator on the computer display, and providing multiple instances of an on-screen control at different locations on the display for selection by the operator using a pointing device linked to the display. The control is actuated responsive to the selection by the operator of any of the instances of the control on the display.
摘要:
A method is disclosed for reliably updating a data group in a read-before-write data replication environment. The method reliably updates the data group by receiving an updated data group sent from a first storage medium to a second storage medium, comparing the updated data group with a previous data group previously existing on the second storage medium and writing the updated data group to the second storage medium. The read-before-write and differencing method disclosed maintain reliability by storing multiple copies of changes made to the second storage medium during and after the write process.
摘要:
A method for servicing a computerized system includes detecting a failure of a given type in the computerized system, and generating a list of corrective actions in response to the failure, using an automated maintenance program. A record of one or more previous failures of the given type in the computerized system is retrieved, indicating at least one previous corrective action taken in response to the previous failures. The method prioritizes the list of corrective actions responsively to the record, using the automated maintenance program, so as to adjust a priority of the at least one previous corrective action in the list. The prioritized list from the automated maintenance program is provided to a repair function for use in servicing the computerized system.
摘要:
A method for storing data received from a host processor at a primary storage subsystem in a data storage system includes writing the data to a first volatile cache memory in the primary storage subsystem and copying the data from the primary storage subsystem to a secondary storage subsystem. The second subsystem writes the copied data to a second volatile cache memory and returns an acknowledgment to the primary storage subsystem responsively to writing the copied data to the second volatile cache memory and prior to saving the data in the second non-volatile storage media. The primary storage subsystem signals the host processor that the data have been stored in the data storage system responsively to the acknowledgment from the secondary storage subsystem.
摘要:
Provided are a method, system, and program for forming a consistency group of data. Information is provided on a consistency group relationship indicating a plurality of slave controllers and, for each indicated slave controller, a slave storage unit managed by the slave controller. A command is transmitted to each slave controller in the consistency group relationship to cause each slave controller to transmit data in the slave storage unit to a remote storage in a manner that forms the consistency group. A determination is made as to whether all the slave controllers successfully transmitted the data in the slave storage units that is part of the consistency group to the remote storage.
摘要:
The present invention is directed to a system and method for evaluating verification of data by an operator. The data is presented to the operator on a computer-controlled display and a time duration is measured over which the operator interacts with the display in verifying the presented data. The time duration is indicative of the reliability of the verification of the data by the operator.
摘要:
A method for servicing a computerized system includes detecting a failure of a given type in the computerized system, and generating a list of corrective actions in response to the failure, using an automated maintenance program. A record of one or more previous failures of the given type in the computerized system is retrieved, indicating at least one previous corrective action taken in response to the previous failures. The method prioritizes the list of corrective actions responsively to the record, using the automated maintenance program, so as to adjust a priority of the at least one previous corrective action in the list. The prioritized list from the automated maintenance program is provided to a repair function for use in servicing the computerized system.
摘要:
Provides methods, systems and apparatus for data storage including running an asynchronous replication process to copy successive sets of stored data from a primary storage system to a secondary storage system, and receiving at the primary storage system from the secondary storage system an indication of space available for receipt of the data at the secondary storage system. An example method further includes selecting from amongst the data stored at the primary storage system one of the sets of the data as a selected set, sized in response to the indication, conveying the selected set from the primary storage system to the secondary storage system in the asynchronous replication process, and storing the sets of the data atomically in the secondary storage system.
摘要:
A method for compression of an input image that includes a plurality of pixels having respective input pixel values. The method includes quantizing the input pixel values so as to generate respective quantized pixel values, and generating a quantized image by substituting the quantized pixel values for the respective input pixel values in the input image. The input pixel values in the input image are reordered so as to generate a reordered image in which the input pixel values are grouped by their respective quantized values. The quantized image and the reordered image are compressed so as to generate a compressed output image file.