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    • 7. 发明授权
    • Efficient data deployment for a parallel data processing system
    • 并行数据处理系统的高效数据部署
    • US09582209B2
    • 2017-02-28
    • US14748262
    • 2015-06-24
    • VMWARE, INC.
    • Chiao-Chuan ShihSamdeep Nayak
    • G06F3/06
    • G06F3/0619G06F3/0611G06F3/065G06F3/0659G06F3/0683
    • This document describes techniques for efficient data deployment for a parallel data processing system. In one embodiment, a virtualization platform running a parallel processing application that includes one or more virtual data nodes receives a first command to write a data block to a storage device. The platform then determines whether the first command was sent by a first virtual data node. If the first command was sent by a first virtual data node, the platform then 1) writes, the data block to a first location in the storage device; 2) returns the first location to the first virtual data node and 3) determines whether the data should be replicated. If the data should be replicated, the platform instructs the storage device to make a copy of the data block to a second location in the storage device and storing the second location in a tracking structure.
    • 本文档描述了用于并行数据处理系统的有效数据部署的技术。 在一个实施例中,运行包括一个或多个虚拟数据节点的并行处理应用的虚拟化平台接收将数据块写入存储设备的第一命令。 然后该平台确定第一命令是否由第一虚拟数据节点发送。 如果第一个命令是由第一个虚拟数据节点发送的,则平台然后将数据块写入存储设备中的第一个位置; 2)将第一个位置返回给第一个虚拟数据节点,3)确定是否应该复制数据。 如果要复制数据,则平台指示存储设备将数据块的副本复制到存储设备中的第二位置,并将第二位置存储在跟踪结构中。
    • 9. 发明授权
    • Method and system for VM-granular SSD/FLASH cache live migration
    • VM-granular SSD / FLASH缓存实时迁移的方法和系统
    • US09055119B2
    • 2015-06-09
    • US13850985
    • 2013-03-26
    • VMware, Inc.
    • Li ZhouSamdeep NayakSandeep UttamchandaniSanjay Acharya
    • G06F15/167H04L29/08
    • H04L67/2847
    • The instant disclosure describes embodiments of a system and method for migrating virtual machine (VM)-specific content cached in a solid state drive (SSD) attached to an original host. During operation, the original host receives event indicating an upcoming migration of a VM to a destination host. In response, the original host transmits a set of metadata associated with the SSD cache to the destination host. The metadata indicates a number of data blocks stored in the SSD cache, thereby allowing the destination host to pre-fetch data blocks specified in the metadata from a storage shared by the original host and the destination host. Subsequently, the original host receives a power-off event for the VM, and transmits a dirty block list to the destination. The dirty block list specifies one or more data blocks that have changed since the transmission of the metadata.
    • 本公开描述用于迁移在连接到原始主机的固态驱动器(SSD)中缓存的虚拟机(VM)特定内容的系统和方法的实施例。 在操作期间,原始主机接收到指示即将到达目的地主机的VM迁移的事件。 作为响应,原始主机将与SSD高速缓存相关联的一组元数据发送到目的地主机。 元数据指示存储在SSD高速缓存中的多个数据块,从而允许目的地主机从由原始主机和目的地主机共享的存储器中预取在元数据中指定的数据块。 随后,原始主机接收到VM的电源关闭事件,并将脏块列表发送到目的地。 脏块列表指定自元数据传输以来已经改变的一个或多个数据块。