Abstract: A system can determine a first correlation between respective percentages of stored garbage and respective amounts of garbage of a block storage system based on determining the respective amounts of garbage among first blocks of the respective blocks that satisfy respective criterions of the respective percentages of stored garbage. The system can, based on the first correlation, determine a second correlation between an estimated throughput applicable to reclaiming garbage in the block storage system and the respective amounts of garbage of the block storage system. The system can, based on the first correlation and the second correlation and for a specified target reclamation throughput, determine a corresponding first percentage of stored garbage of the respective percentages of stored garbage. The system can perform copy-forward garbage collection on second blocks of the block storage system that satisfy a criterion defined with respect to the first percentage of stored garbage.

Abstract: The present invention relates to the technical field of chemical industry, and in particular to a method for purifying ethylene carbonate through dynamic crystallization, which includes the following steps: adding an ethylene carbonate-containing raw material into a cavity of a crystallization device under a condition of stirring for dynamic crystallization, wherein the crystallization device further includes a jacket attached and circumferentially disposed along the outer wall of the cavity, the jacket is provided with cooling water therein, a temperature of the cooling water is 1-2.5° C. lower than the temperature in the cavity until a granular ethylene carbonate crystal is generated. The present invention using a rake dryer as the crystallization device to realize dynamic crystallization at a certain rotating speed. The technical solution is simple to operate and short in processing cycle, which facilitates improvement in production efficiency and product quality and is suitable for industrial application.

Abstract: Provided are a system, a method and a device for forwarding a packet. The system comprises: an LCC comprising a first LCC's control ether switch unit and a second LCC's control ether switch unit, a first CFC comprising a first CFC's control ether switch unit, and a second CFC comprising a second CFC's control ether switch unit, wherein a control message channel and a protocol packet channel are separately arranged between the first and the second LCC's control ether switch units and the first and the second CFC's control ether switch units. Through the disclosure, the problem that the reliability and security of the cluster-based router may be reduced if the control message and the protocol packet are transmitted in the same channel in the related arts is solved, so as to achieve the effects of forwarding the control message and the protocol packet in a cluster-based router separately and enhancing the reliability and the security of the cluster-based router.

Abstract: Provided are a system, a method and a device for forwarding a packet. The system comprises: an LCC comprising a first LCC's control ether switch unit and a second LCC's control ether switch unit, a first CFC comprising a first CFC's control ether switch unit, and a second CFC comprising a second CFC's control ether switch unit, wherein a control message channel and a protocol packet channel are separately arranged between the first and the second LCC's control ether switch units and the first and the second CFC's control ether switch units. Through the disclosure, the problem that the reliability and security of the cluster-based router may be reduced if the control message and the protocol packet are transmitted in the same channel in the related arts is solved, so as to achieve the effects of forwarding the control message and the protocol packet in a cluster-based router separately and enhancing the reliability and the security of the cluster-based router.