摘要:
An apparatus and method to replicate one or more files between non-symmetric storage systems are disclosed. The method supplies a first storage system comprising a first configuration, a first volume, a first file system, and a first replication appliance comprising first replication appliance memory. The method further supplies a second storage system comprising a second configuration, a second volume, a second file system, and a second replication appliance comprising second replication appliance memory, where the first configuration differs from the second configuration. The first storage system receives a dataset, writes that dataset to the first volume as a first file. Applicants' method then replicates the first file to the second volume as a second file, and maintains in the second replication appliance memory a second replication appliance mapping associating the first file with the second file.
摘要:
System and techniques for transmitting information from a remote information source use a reflector for reflecting a laser beam or other light source back to its originating location. A reflector coupled to an information source receives a laser beam from a laser source. A movement of at least one surface of the reflector is controlled to modulate the laser beam, and the modulated laser beam is reflected toward the laser source. The modulated laser beam can be received by a receiver at or near the laser source to detect and decode data embedded in the modulated laser beam.
摘要:
According to the present invention, there is provided a SAN management system to provide autonomic management of a storage system using an action-centric approach. The SAN management system includes a policy specification logic block to maintain a policy specification associated with the managed system. In addition, the SAN management system includes a reasoning logic block to provide for the determining of action rules using a combination of logic and information obtained from the policy specification. Also, the SAN management system includes a learning logic block to couple the policy specification logic block with the reasoning logic block to improve an understanding of a managed system. The learning is continuous and provides for autonomic evolvement of the system in which reliance on manual input from a user is lessened.
摘要:
A method and structures are provided for implementing customizable dielectric printed circuit card traces. A void is defined near selected signal traces. The void is then filled with a dielectric material having a predefined dielectric property. The dielectric material is selected to alter at least one predefined electrical property of the selected signal traces, such as, coupling, propagation delay and attenuation. In one embodiment, an outer layer of a printed circuit card includes a plurality of signal traces and a mating circuit card layer including a plurality of matching signal traces is attached to the outer layer of the printed circuit card to create a cavity near selected signal traces. The cavity is filled with the selected dielectric material. In another embodiment, dielectric material is selectively removed near signal traces on an outer layer of the printed circuit card to define a void near selected signal traces.
摘要:
Methods, systems, and computer program products are disclosed for acquiring test data from an electronic circuit by mounting a probe adjacent to a capture point on an electronic circuit board, capturing by the probe an electronic signal of the electronic circuit, digitizing by the probe the captured signal, and transmitting by the probe the digitized signal from the probe through a data communications connection to a remote device. Acquiring test data from an electronic circuit also includes storing by the probe the digitized signal in the probe. Acquiring test data from an electronic circuit may include processing by the probe the digitized signal. Acquiring test data from an electronic circuit also may include synchronizing acquisition of test data by the probe with acquisition of test data by one or more other probes.
摘要:
Methods, systems, and computer program products are disclosed for acquiring test data from an electronic circuit by mounting a probe adjacent to a capture point on an electronic circuit board, capturing by the probe an electronic signal of the electronic circuit, digitizing by the probe the captured signal, and transmitting by the probe the digitized signal from the probe through a data communications connection to a remote device. Acquiring test data from an electronic circuit also includes storing by the probe the digitized signal in the probe. Acquiring test data from an electronic circuit may include processing by the probe the digitized signal. Acquiring test data from an electronic circuit also may include synchronizing acquisition of test data by the probe with acquisition of test data by one or more other probes.
摘要:
A method, apparatus and computer program product are provided for implementing automated detection of excess aggressor shape capacitance coupling in printed circuit board layouts. A PCB design file containing an electronic representation of a printed circuit board design is received. A list of candidate shapes is identified. The candidate shapes are disposed on layers adjacent to aggressor planes. A capacitance coupling the candidate shapes to adjacent aggressor planes is calculated. A ratio of the calculated capacitance and a decoupling capacitance connecting the candidate shapes to a reference plane is determined. The PCB design file containing an electronic representation of a printed circuit board design includes shape data and text data that are extracted to produce a list of shapes' names, areas, locations and planes; and includes data defining thickness and relative permittivity of the dielectric layers used for calculating the effective capacitance is an inter-layer parallel-plate effective capacitance.
摘要:
A chip-to-chip digital transmission circuit includes a differential driver portion, a pair of differential signal transmission lines connected to the driver portion, and a receiver portion connected to the transmission lines, an output node of which reproduces a digital bit stream originally presented to a driver side input node, wherein the transmission lines carry both transmitted signal information and DC power for the receiver portion. The driver portion is configured to adjust both the transmitted signal magnitude and the DC power delivered to the receiver portion.
摘要:
An apparatus, system, and method are disclosed for determining prefetch data. A start module communicates a start of a target software process to a storage device. A learning module learns data blocks accessed for the target software process. In one embodiment, a prefetch module prefetches the learned data blocks in response to the start of the target software process. An end module communicates the end of the target software process to the storage device. In one embodiment, the prefetch module terminates prefetching data blocks and the learning module terminates learning the data blocks accessed for the target software process in response to the end module's communication of the end of the target software process.