摘要:
An apparatus and method provides the capability of mirroring storage between geographically remote locations in an asynchronous manner that does not require all writes on primary storage to be performed in the same order on the mirrored storage. The mirroring of the present invention is “logical mirroring”, which does not require identical disk drives, and which supports mirroring between geographically remote locations to protect against catastrophic site failure. A sequence number is assigned to data written to primary storage before the data is transferred to the mirrored storage. The mirrored storage can write data asynchronously, which may result in some data being written before previous data on the mirrored storage. When a system failure occurs that requires use of the mirrored storage, the mirrored storage is first quiesced to allow all pending writes to occur. If the mirrored storage has no missing data corresponding to a sequence number that is lower than the highest sequence number of data written to the mirrored storage, the mirrored storage may be used. If, however, the mirrored storage has missing data corresponding to a sequence number that is lower than the highest sequence number of data written to the mirrored storage, the mirrored storage cannot be used.
摘要:
An apparatus, program product and method backs up computer data by organizing update requests into groups. All update requests in one group complete concurrently before requests of a subsequent group complete.
摘要:
An apparatus and method provides the capability of mirroring storage from a primary system to a mirrored system in a way that uses parallelism in the mirrored system to maximize the efficiency of writing data to the mirrored storage for operations that do not conflict while serializing operations that do conflict. The mirroring of the present invention is “logical mirroring”, which does not require identical disk drives, and which supports mirroring between geographically remote locations to protect against catastrophic site failure. Parallelism is achieved in the mirrored system by dividing the virtual address space into multiple ranges, and by assigning a group of tasks to each range. When an operation is received on the mirrored system, the virtual address range that the operation affects is determined, and the operation is then delegated to the task group that corresponds to the affected virtual address range. By dividing the virtual address space into ranges, tasks in different ranges (i.e., in different task groups) may execute in parallel without any threat of conflict, and even tasks within the same range may execute in parallel if they operate in different portions of the range.
摘要:
Described are apparatus and methods for processing a semiconductor wafer in which the gap between the wafer surface and the gas distribution assembly remains uniform and of known thickness. The wafer is positioned within a susceptor assembly and the assembly is lifted toward the gas distribution assembly using actuators. The wafer can be lifted toward the gas distribution assembly by creating a fluid bearing below and/or above the wafer.
摘要:
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide a an enhanced mobile device that includes a CPU, a low latency transceiver, and a high latency transceiver. The enhanced mobile device is in communication with a console via both the low latency transceiver and the high latency transceiver. The console also includes a CPU, a low latency transceiver, and a high latency transceiver. In some embodiments, the low latency communication channel is used to transmit control messages to an entertainment console whereas the high latency communication channel is used to communicate data between the mobile device and the entertainment console. The dual-mode communication may be used in different scenarios, including with an entertainment console for gaming, viewing videos, and the like.
摘要:
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide an enhanced mobile device that includes a CPU, a low latency transceiver, and a high latency transceiver. The enhanced mobile device is in communication with a console via both the low latency transceiver and the high latency transceiver. The console also includes a CPU, a low latency transceiver, and a high latency transceiver. In some embodiments, the low latency communication channel is used to transmit control messages to an entertainment console whereas the high latency communication channel is used to communicate data between the mobile device and the entertainment console. The dual-mode communication may be used in different scenarios, including with an entertainment console for arena gaming and other entertainment applications.
摘要:
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide a an enhanced mobile device that includes a CPU, a low latency transceiver, and a high latency transceiver. The enhanced mobile device is in communication with a console via both the low latency transceiver and the high latency transceiver. The console also includes a CPU, a low latency transceiver, and a high latency transceiver. In some embodiments, the low latency communication channel is used to transmit control messages to an entertainment console whereas the high latency communication channel is used to communicate data between the mobile device and the entertainment console. The dual-mode communication may be used in different scenarios, including with an entertainment console for gaming, viewing videos, and the like.
摘要:
Apparatuses and systems are disclosed for exhausting by-products from a processing chamber. In an embodiment, a dual exhaust system for removing by-products from a processing chamber includes a first exhaust line and a second exhaust line with each line having a pressure control valve and a particle trap for removing by-products. A portion of the first exhaust line may be coupled in parallel with the second exhaust line. The second exhaust line can be isolated from the first exhaust line and cleaned while the first exhaust line is removing by-products from the processing chamber or vice versa. In one embodiment, an exhaust system for removing by-products from a processing chamber includes an exhaust line and valves for removing the by-products. The valves are designed to operate at a high temperature such that the heated by-products are in a vapor phase while being removed through the exhaust line.
摘要:
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide an enhanced mobile device that includes a low latency transceiver and a high latency transceiver. In some cases, the enhanced mobile device is operated by a customer and configured to interact with a point of service computing system via both the low and high latency transceivers to facilitate a customer interaction at a point of service location. For example, the enhanced mobile device may transmit via its high latency transceiver an indication that it is en route to the point of service location. Upon arrival at the point of service location, the enhanced mobile device may transmit via its low latency transceiver an indication that the customer has arrived at the point of service location. The point of service computing system may then provide a service based on the information received from the enhanced mobile device.
摘要:
Methods, systems, and techniques for dual-mode communication are provided. Example embodiments provide a an enhanced mobile device that includes a CPU, a low latency transceiver, and a high latency transceiver. The enhanced mobile device is in communication with a console via both the low latency transceiver and the high latency transceiver. The console also includes a CPU, a low latency transceiver, and a high latency transceiver. In some embodiments, the low latency communication channel is used to transmit control messages to an entertainment console whereas the high latency communication channel is used to communicate data between the mobile device and the entertainment console. The dual-mode communication may be used in different scenarios, including entertainment applications, such as with dual-mode eyeglasses.