公开(公告)号：WO2012142027A2

公开(公告)日：2012-10-18

申请号：PCT/US2012/032890

申请日：2012-04-10

Applicant: NETAPP, INC. ,  STORER, Mark, W ,  SCHINDLER, Jiri

Inventor： STORER, Mark, W ,  SCHINDLER, Jiri

IPC: G06F12/00 ,  G06F12/16 ,  G06F15/16

CPC classification number: G06F11/1092 ,  G06F11/008

Abstract: A storage system provides highly flexible data layouts that can be tailored based on reliability considerations. The system allocates reliability values to logical containers at an upper logical level of the system based, for example, on objectives established by reliability SLOs. Based on the reliability value, the system identifies a specific parity group from a lower physical storage level of the system for storing data corresponding to the logical container. After selecting a parity group, the system allocates the data to physical storage blocks within the parity group. In embodiments, the system attaches the reliability value information to the parity group and the physical storage units storing the data. In this manner, the underlying physical layer has a semantic understanding of reliability considerations related to the data stored at the logical level. Based on this semantic understanding, the system has the capability to prioritize data operations on the physical storage units according to the reliability values attached to the parity groups.

Abstract translation: 存储系统提供高度灵活的数据布局，可根据可靠性考虑进行定制。 该系统基于例如由可靠性SLO建立的目标，将系统的逻辑容器分配到系统的较高逻辑级别的逻辑容器。 基于可靠性值，系统从用于存储对应于逻辑容器的数据的系统的较低物理存储级别识别特定奇偶校验组。 选择奇偶校验组后，系统会将数据分配给奇偶校验组内的物理存储块。 在实施例中，系统将可靠性值信息附加到奇偶校验组和存储数据的物理存储单元。 以这种方式，底层物理层对与存储在逻辑级别的数据相关的可靠性考虑具有语义上的理解。 基于这种语义理解，系统具有根据附加到奇偶校验组的可靠性值对物理存储单元进行数据操作的优先级的能力。

公开(公告)号：WO2012142027A3

公开(公告)日：2013-01-17

申请号：PCT/US2012032890

申请日：2012-04-10

Applicant: NETAPP INC ,  STORER MARK W ,  SCHINDLER JIRI

Inventor： STORER MARK W ,  SCHINDLER JIRI

IPC: G06F12/00 ,  G06F12/16 ,  G06F15/16

CPC classification number: G06F11/1092 ,  G06F11/008

Abstract: A storage system provides highly flexible data layouts that can be tailored based on reliability considerations. The system allocates reliability values to logical containers at an upper logical level of the system based, for example, on objectives established by reliability SLOs. Based on the reliability value, the system identifies a specific parity group from a lower physical storage level of the system for storing data corresponding to the logical container. After selecting a parity group, the system allocates the data to physical storage blocks within the parity group. In embodiments, the system attaches the reliability value information to the parity group and the physical storage units storing the data. In this manner, the underlying physical layer has a semantic understanding of reliability considerations related to the data stored at the logical level. Based on this semantic understanding, the system has the capability to prioritize data operations on the physical storage units according to the reliability values attached to the parity groups.

Abstract translation: 存储系统提供高度灵活的数据布局，可根据可靠性考虑进行定制。 该系统基于例如由可靠性SLO建立的目标，将系统的逻辑容器分配到系统的较高逻辑级别的逻辑容器。 基于可靠性值，系统从用于存储对应于逻辑容器的数据的系统的较低物理存储级别识别特定奇偶校验组。 选择奇偶校验组后，系统会将数据分配给奇偶校验组内的物理存储块。 在实施例中，系统将可靠性值信息附加到奇偶校验组和存储数据的物理存储单元。 以这种方式，底层物理层对与存储在逻辑级别的数据相关的可靠性考虑具有语义上的理解。 基于这种语义理解，系统具有根据附加到奇偶校验组的可靠性值对物理存储单元进行数据操作的优先级的能力。