摘要:
A method for accessing data in a storage area network is provided. The method initiates with receiving a request for a list of targets on the storage area network. All the targets on the storage area network are exposed to the requestor and authentication requiring a password is requested from the requestor to grant access to the targets on the storage are network. Access to the targets is granted if the password is acceptable, and access to the targets is refused if the password is unacceptable.
摘要:
A method of partitioning a verification test bench, the method comprising: receiving a source code of the verification test bench, the source code comprising reactive components for sending test traffic to a design under test (DUT) and for receiving test traffic from the DUT, the source code further comprising analytic components for verifying the test traffic between the reactive components and the DUT; identifying the analytic components in the source code; compiling the reactive components and the DUT into a first executable test bench that can be run in a regression to generate test traffic between the reactive components and the DUT; and compiling the analytic components into a second executable test bench that can be run separately from the first executable test bench in order to verify the test traffic.
摘要:
An oscillator and method for generating a signal are provided. The oscillator comprises an electro-mechanical resonator and a reconfigurable oscillator driver. The reconfigurable oscillator driver starts the oscillator in single-ended mode to avoid latching and transitions the oscillator to differential mode in such a manner as to sustain oscillations therein. The reconfigurable oscillator driver comprises two back-to-back banks of inverters and an adjustable feedback resistor. In single-ended mode, one bank is disabled and the other bank is enabled. To transition to differential mode and improve the quality of the signal, the number of enabled inverters is equalized in both banks.
摘要:
The disclosure generally relates to a PCIe switch that includes a selectively transparent bridge that selectively allows transactions to traverse between multiple PCIe domains without the encumbrance of each root complex entity requiring knowledge of the selectively transparent bridge. The bridge that enables the transactions is invisible to the root complex entity in a host and drive switch domain of the PCIe switch. No address translation of the transactions is required because the drive switch domain address map is a subset of the host switch domain address map. The bridge allows for extremely low latency transactions between host systems and storage drives because the bridge allows the storage drive to read the Direct Memory Access (DMA) Scatter-Gather List (SGL) directly from host memory. The bridge also allows I/O data reads and writes from the storage drive directly to the host memory without store and forward within a RAID controller's memory.
摘要:
Provided is an apparatus and method for enabling interoperability between a serial attached small computer system interface (SAS) protocol with a peripheral component interconnect express (PCIe) protocol. A SAS-PCIe bridge includes a SAS component configured to communicate with a SAS device in a SAS domain and a PCIe component configured to communicate with a PCIe switch in a PCIe domain. The SAS component and the PCIe component are configured to convert data between the SAS protocol and the PCIe protocol.
摘要:
A system and method of delineating GFP data. The GFP framer comprises a candidate generator for generating an array of core header candidates from a data word received on a data bus, a candidate processor for generating a plurality of candidate tours and a frame delineator for identifying a candidate tour as an active tour and delineating the boundaries of the GFP frames defined by the active tour. Each core header candidate defines a reference position of one of the plurality of candidate tours. Each of the plurality of candidate tour comprises a record of core header positions for a series of GFP frames from the data word.
摘要:
A system for writing data to overlapping physical tracks of a shingled magnetic record (SMR) hard disk drive (HDD) and a method for creating a logical disk from overlapping physical tracks of the SMR HDD. The system comprises a write header and a memory identifying the overlapping physical tracks which are accessible through the logical disk. The physical tracks are spaced from each other by at least the width of the write header. The method comprises mapping in a memory the logical disk to writeable tracks of the overlapping physical tracks, the writeable tracks spaced from each other by at least the width of the write header.
摘要:
A system and method for memory block pool wear leveling in a nonvolatile memory device. An improved bit error rate for the nonvolatile memory system is attained by identifying a plurality of memory block pools of the nonvolatile memory system, identifying a relaxation time delay for each of the plurality of memory block pools and executing a predetermined number of program/erase cycles for each of the plurality of memory block pools based upon the relaxation time delay of the memory block pools.
摘要:
A number of methods and clock generator units are disclosed to produce low Phase Noise clocks for use in Radio Frequency systems. The methods and clock generator units all use two reference clocks: a frequency-accurate reference that has comparatively high Phase Noise, and a frequency-inaccurate reference such as that from a BAW or MEMS clock source that has comparatively low Phase Noise. By combining multiple Phase-Locked Loops and a mixer, it is possible to produce flexible output frequencies whose frequency accuracy is derived from the first reference clock but whose Phase Noise level is derived from the second reference clock, all in a readily-integrated and relatively low-cost system.
摘要:
A circuit and method for improving signal integrity characteristics of a non-full rate transmitter are disclosed herein. The circuit comprises an actuator block having an input for receiving a differential clock signal, the differential clock signal comprising a positive clock signal and a negative clock signal, the actuator configured to adjust a difference between the positive and negative clock signals; a sensing block, for sensing a difference between positive and negative signals of a differential signal, the differential signal being related to the clock signal; and a calibration block for providing a control signal to the actuator based on the sensed difference between the positive and negative signals.