Techniques for implementing hybrid flash/HDD-based virtual disk files
    22.
    发明授权
    Techniques for implementing hybrid flash/HDD-based virtual disk files 有权
    实现基于混合闪存/ HDD的虚拟磁盘文件的技术

    公开(公告)号:US09182927B2

    公开(公告)日:2015-11-10

    申请号:US13931409

    申请日:2013-06-28

    Applicant: VMware, Inc.

    Abstract: Techniques for utilizing flash storage as an extension of hard disk (HDD) based storage are provided. In one embodiment, a computer system can store a first subset of blocks of a logical file in a first physical file residing on a flash storage tier, and a second subset of blocks of the logical file in a second physical file residing on an HDD storage tier. The computer system can then receive an I/O request directed to one or more blocks of the logical file and process the I/O request by accessing the flash storage tier or the HDD storage tier, the accessing being based on whether the one or more blocks are part of the first subset of blocks stored in the first physical file.

    Abstract translation: 提供了使用闪存作为基于硬盘(HDD)的存储的扩展的技术。 在一个实施例中,计算机系统可以将存储在闪存存储层上的第一物理文件中的逻辑文件的块的第一子集存储在驻留在HDD存储器上的第二物理文件中的逻辑文件块的第二子集 层。 计算机系统然后可以接收针对逻辑文件的一个或多个块的I / O请求,并通过访问闪存存储层或HDD存储层来处理该I / O请求,该访问基于该一个或多个 块是存储在第一个物理文件中的块的第一个子集的一部分。

    Automated space management for server flash cache
    23.
    发明授权
    Automated space management for server flash cache 有权
    服务器闪存缓存的自动空间管理

    公开(公告)号:US08949531B2

    公开(公告)日:2015-02-03

    申请号:US13693976

    申请日:2012-12-04

    Applicant: VMware, Inc.

    Abstract: Techniques for automatically allocating space in a flash storage-based cache are provided. In one embodiment, a computer system collects I/O trace logs for a plurality of virtual machines or a plurality of virtual disks and determines cache utility models for the plurality of virtual machines or the plurality of virtual disks based on the I/O trace logs. The cache utility model for each virtual machine or each virtual disk defines an expected utility of allocating space in the flash storage-based cache to the virtual machine or the virtual disk over a range of different cache allocation sizes. The computer system then calculates target cache allocation sizes for the plurality of virtual machines or the plurality of virtual disks based on the cache utility models and allocates space in the flash storage-based cache based on the target cache allocation sizes.

    Abstract translation: 提供了在基于闪存存储的高速缓存中自动分配空间的技术。 在一个实施例中,计算机系统收集多个虚拟机或多个虚拟盘的I / O跟踪日志,并且基于I / O跟踪日志确定多个虚拟机或多个虚拟盘的高速缓存实用程序模型 。 每个虚拟机或每个虚拟磁盘的高速缓存实用程序模型定义了在基于闪存存储的高速缓存中将空间分配到不同高速缓存分配大小范围内的虚拟机或虚拟磁盘的预期效用。 计算机系统然后基于高速缓存实用程序模型计算多个虚拟机或多个虚拟磁盘的目标高速缓存分配大小,并基于目标高速缓存分配大小分配基于闪存存储器的高速缓存中的空间。

    I/O Hint Framework for Server Flash Cache
    24.
    发明申请
    I/O Hint Framework for Server Flash Cache 有权
    服务器闪存缓存的I / O提示框架

    公开(公告)号:US20140244898A1

    公开(公告)日:2014-08-28

    申请号:US13779260

    申请日:2013-02-27

    Applicant: VMWARE, INC.

    Abstract: An I/O hint framework is provided. In one embodiment, a computer system can receive an I/O command originating from a virtual machine (VM), where the I/O command identifies a data block of a virtual disk. The computer system can further extract hint metadata from the I/O command, where the hint metadata includes one or more characteristics of the data block that are relevant for determining how to cache the data block in a flash storage-based cache. The computer system can then make the hint metadata available to a caching module configured to manage the flash storage-based cache.

    Abstract translation: 提供了一个I / O提示框架。 在一个实施例中,计算机系统可以接收源自虚拟机(VM)的I / O命令,其中I / O命令标识虚拟盘的数据块。 计算机系统可以进一步从I / O命令中提取提示元数据,其中提示元数据包括与确定如何在基于闪存存储的高速缓存中高速缓存数据块相关的数据块的一个或多个特征。 计算机系统然后可以使提示元数据可用于被配置为管理基于闪存存储的高速缓存的缓存模块。

    TRANSPARENT HOST-SIDE CACHING OF VIRTUAL DISKS LOCATED ON SHARED STORAGE
    25.
    发明申请
    TRANSPARENT HOST-SIDE CACHING OF VIRTUAL DISKS LOCATED ON SHARED STORAGE 有权
    虚拟磁盘的透明主机高速缓存位于共享存储

    公开(公告)号:US20140059292A1

    公开(公告)日:2014-02-27

    申请号:US13922985

    申请日:2013-06-20

    Applicant: VMware, Inc.

    Abstract: Techniques for using a host-side cache to accelerate virtual machine (VM) I/O are provided. In one embodiment, the hypervisor of a host system can intercept an I/O request from a VM running on the host system, where the I/O request is directed to a virtual disk residing on a shared storage device. The hypervisor can then process the I/O request by accessing a host-side cache that resides one or more cache devices distinct from the shared storage device, where the accessing of the host-side cache is transparent to the VM.

    Abstract translation: 提供了使用主机侧缓存来加速虚拟机(VM)I / O的技术。 在一个实施例中,主机系统的管理程序可以拦截来自在主机系统上运行的VM的I / O请求,其中I / O请求被定向到驻留在共享存储设备上的虚拟磁盘。 然后,管理程序可以通过访问驻留一个或多个与共享存储设备不同的高速缓存设备的主机侧缓存来处理I / O请求,其中主机侧缓存的访问对VM是透明的。

    System and method for exclusive read caching in a virtualized computing environment
    30.
    发明授权
    System and method for exclusive read caching in a virtualized computing environment 有权
    虚拟化计算环境中独占读取缓存的系统和方法

    公开(公告)号:US09361237B2

    公开(公告)日:2016-06-07

    申请号:US13655237

    申请日:2012-10-18

    Applicant: VMware, Inc.

    Abstract: A technique for efficient cache management demotes a unit of data from a higher cache level to a lower cache level in a cache hierarchy when the higher level cache evicts the unit of data. In a virtualization computing environment, eviction of the unit of data may be inferred by observing privileged memory and disk operations performed by a guest operating system and trapped by virtualization software for execution. When the unit of data is inferred to be evicted, the unit of data is demoted by transferring the unit of data into the lower cache level. This technique enables exclusive caching without direct involvement or modification of the guest operating system. In alternative embodiments, a pseudo-driver installed within the guest operating system explicitly tracks memory operations and transmits page eviction information to the lower level cache, which is able to cache evicted pages while maintaining cache exclusivity.

    Abstract translation: 当高级缓存驱逐数据单元时,用于高效缓存管理的技术将高速缓存级别的数据单元降级到高速缓存层级中的较低高速缓存级别。 在虚拟化计算环境中,可以通过观察由客户操作系统执行的特权存储器和磁盘操作并被虚拟化软件捕获以执行来推断数据单元的驱逐。 当推断数据单位被驱逐时,通过将数据单元传送到较低的缓存级别来降低数据单位。 这种技术可以独立的缓存,而不需要直接参与或修改客户机操作系统。 在替代实施例中,安装在客户机操作系统内的伪驱动程序显式地跟踪存储器操作,并将页面驱逐信息发送到下级缓存,其能够缓存被驱逐的页面,同时保持高速缓存独占性。

Patent Agency Ranking