Abstract: Rebuild systems and methods for a network are provided. One rebuild system includes a client device including an event handler and an indication listener associated with the event handler and a server device in communication with the client device. The server device includes an indication subscription associated with the event handler and a self-registration trigger (SRT) module in communication with the indication subscription for rebuilding the event handler and the indication listener. One rebuild method includes storing, by the indication subscription, rebuild data associated with the event handler and the indication listener and rebuilding, by the SRT module, the event handler and the indication listener with the rebuild data. Also provided are physical computer storage mediums including a computer program product rebuild method for a network. One computer program product rebuild method includes computer code for performing the above method.

Abstract: Techniques for migrating persistent data between and across data stores are implemented using monitoring methods. The method includes classifying frequently updated blocks of persistent data to distinguish those blocks from less frequently updated blocks of persistent data. The less frequently updated blocks are copied from the source data store to the destination data store, such that persistent data is copied to the destination data store in the absence of the persistent data of the frequently updated blocks. The method further includes identifying a modified set of the less frequently updated blocks that are modified during the copying. The modified set of less frequently updated blocks is copied from the source data store to the destination data store, without copying the frequently updated blocks. It is then determined whether to copy the frequently updated blocks of persistent data from the source data store to the destination data store.

Abstract: Techniques for migrating persistent data of virtual machines between and across data stores are optimized using special tracking data structures and monitoring methods. Special tracking data structures include an incremental change block tracking bitmap that indicate what blocks have been modified during a copy operation. The determination of whether any one block has been modified during the copy operation is based on whether or not the copy operation has progressed past that block. Another special tracking data structure is a Bloom filter, which provides a space-efficient data structure for keeping track of dirtied blocks. In addition, heat-based optimization techniques are applied so that blocks that are frequently updated are filtered and not transferred to the destination data store until the last iteration of the migration process.

Abstract: Techniques for migrating persistent data of virtual machines between and across data stores are optimized using special tracking data structures and monitoring methods. Special tracking data structures include an incremental change block tracking bitmap that indicate what blocks have been modified during a copy operation. The determination of whether any one block has been modified during the copy operation is based on whether or not the copy operation has progressed past that block. Another special tracking data structure is a Bloom filter, which provides a space-efficient data structure for keeping track of dirtied blocks. In addition, heat-based optimization techniques are applied so that blocks that are frequently updated are filtered and not transferred to the destination data store until the last iteration of the migration process.

Abstract: An electrical connector (1) for electrically connecting with a modular plug (2) includes an insulative housing (10) having a receiving cavity (100) and a resisting block (126) formed in the receiving cavity and having a curved surface (122). A number of contacts (20) is mounted in the receiving cavity. Each contact has a mating portion (21) extending into the receiving cavity and cantilevered above the resisting block. The modular plug is engaged with the mating portion and presses the mating portion to the resisting block when the modular plug is inserted into the receiving cavity. When the plug connector is inserted into the receiving cavity, the mating potion abuts against the curved surface.

Abstract: An electrical connector (1) for electrically connecting with a modular plug (2) includes an insulative housing (10) having a receiving cavity (100) and a resisting block (126) formed in the receiving cavity and having a curved surface (122). A number of contacts (20) is mounted in the receiving cavity. Each contact has a mating portion (21) extending into the receiving cavity and cantilevered above the resisting block. The modular plug is engaged with the mating portion and presses the mating portion to the resisting block when the modular plug is inserted into the receiving cavity. When the plug connector is inserted into the receiving cavity, the mating potion abuts against the curved surface.

Abstract: An electrical connector comprises a dielectric housing and a number of contacts received in the housing. The housing defines three aligned apertures and a partition is provided between two proximate aperture. The housing defines four recesses equiangularly disposed in a periphery of each aperture and two selected recesses thereof are respectively recessed in two partitions beside the aperture. Therefor each contact is received in a corresponding aperture and abuts against parts of the periphery of the aperture that are not recessed therein while being spaced from the partition. Thus, stress exerted on the partitions is limited thereby preventing the partitions from being crushed by the contacts.