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Vplex
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EMC vplex is the next-generation solution for block-level virtualization and data mobility within, Alibaba SS, and between data centers.
EMC vplex provides storage Federation by aggregating storage arrays that can be located either in a single data center or multiple data centers. vplex is also used as the data mobility solution for environments like cloud computing.
EMC vplex provides a virtual storage infrastructure that enables Federation of heterogeneous storage resources both within and guest SS datacenters. the vplex appliance resides between the servers and heterogeneous storage devices. it forms a pool of distributed block storage resources and enables creating virtual storage volumes from the pool. these virtual volumes are then allocated to the servers. the Virtual-to-physical-Storage Mapping remains hidden to the servers.
Vplex provides nondisruptive data mobility among physical storage devices to balance the application workload and to enable both local and remote data access. the mapping of virtual volumes to physical volumes can be changed dynamically by the Administrator. this allows for a virtual volume to be moved into SS storage arrays while still in production.
Vplex uses a unique clustering architecture and distributed cache coherency that enable multiple hosts located into SS two locations to access a single copy of data. this eliminates the operational overhead and time required to copy and distribute data between SS locations vplex also provides the capability to mirror data of a virtual volume both within and between SS locations. this enables hosts at different data centers to access cache-coherent copies of the same virtual volume. practical applications of this capability include mobility, load-balancing, and high availability extends SS data centers. to avoid application downtime due to outage at a data center, the workload can be moved quickly to another data center. applications continue accessing the same virtual volume and remain uninterrupted by the Data mobility.
Answer:
Vplex