公开(公告)号：US20140297780A1

公开(公告)日：2014-10-02

申请号：US13850985

申请日：2013-03-26

Applicant: VMware, Inc.

Inventor： Li Zhou ,  Samdeep Nayak ,  Sandeep Uttamchandani ,  Sanjay Acharya

IPC: H04L29/08

CPC classification number: H04L67/2847

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09055119B2

公开(公告)日：2015-06-09

申请号：US13850985

申请日：2013-03-26

Applicant: VMware, Inc.

Inventor： Li Zhou ,  Samdeep Nayak ,  Sandeep Uttamchandani ,  Sanjay Acharya

IPC: G06F15/167 ,  H04L29/08

CPC classification number: H04L67/2847

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140181398A1

公开(公告)日：2014-06-26

申请号：US14073055

申请日：2013-11-06

Applicant: VMware, Inc.

Inventor： Rajesh Bhat ,  Sanjay Acharya ,  Satyam B. Vaghani ,  Chiao-Chuan Shih

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0604 ,  G06F3/0631 ,  G06F3/0661 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F9/00 ,  H04L29/06 ,  H04L61/103 ,  H04L67/1097

Abstract: A method processes input-output commands (IOs) in a storage system. The storage system receives an IO including first and second identifiers. The first identifier is used to direct the IO to the storage system. At the storage system, the method retrieves the second identifier from the IO and translates the second identifier to a logical storage volume identifier. Then, the method executes the IO on storage locations referenced by a logical storage volume corresponding to the logical storage volume identifier.

Abstract translation: 一种方法处理存储系统中的输入 - 输出命令（IO）。 存储系统接收包括第一和第二标识符的IO。 第一个标识符用于将IO引导到存储系统。 在存储系统中，该方法从IO检索第二标识符，并将第二标识符转换为逻辑存储卷标识符。 然后，该方法对与逻辑存储卷标识符相对应的逻辑存储卷引用的存储位置执行IO。

公开(公告)号：US08914610B2

公开(公告)日：2014-12-16

申请号：US14073055

申请日：2013-11-06

Applicant: VMware, Inc.

Inventor： Rajesh Bhat ,  Sanjay Acharya ,  Satyam B. Vaghani ,  Chiao-Chuan Shih

IPC: G06F12/02 ,  G06F9/00 ,  H04L29/06 ,  G06F3/06 ,  H04L29/12 ,  H04L29/08

CPC classification number: G06F3/0619 ,  G06F3/0604 ,  G06F3/0631 ,  G06F3/0661 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F9/00 ,  H04L29/06 ,  H04L61/103 ,  H04L67/1097

Abstract: A method processes input-output commands (IOs) in a storage system. The storage system receives an IO including first and second identifiers. The first identifier is used to direct the IO to the storage system. At the storage system, the method retrieves the second identifier from the IO and translates the second identifier to a logical storage volume identifier. Then, the method executes the IO on storage locations referenced by a logical storage volume corresponding to the logical storage volume identifier.

Abstract translation: 一种方法处理存储系统中的输入 - 输出命令（IO）。 存储系统接收包括第一和第二标识符的IO。 第一个标识符用于将IO引导到存储系统。 在存储系统中，该方法从IO检索第二标识符，并将第二标识符转换为逻辑存储卷标识符。 然后，该方法对与逻辑存储卷标识符相对应的逻辑存储卷引用的存储位置执行IO。