公开(公告)号：US11818212B2

公开(公告)日：2023-11-14

申请号：US17083860

申请日：2020-10-29

Applicant: NetApp Inc.

Inventor： Santosh Ananth Rao ,  Geoffrey Stewart Brown ,  Srikumar Natarajan ,  Pranab Patnaik ,  Kai Tan ,  Peter Frank Corbett ,  Vivek Venkatesan

IPC: H04L67/1097 ,  H04L43/10 ,  G06F13/22

CPC classification number: H04L67/1097 ,  H04L43/10 ,  G06F13/22

Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.

公开(公告)号：US20170249329A1

公开(公告)日：2017-08-31

申请号：US15582939

申请日：2017-05-01

Applicant: NetApp Inc.

Inventor： Bruce Leverett ,  Michael Kazar ,  Alan Stuart Driscoll ,  Peter Frank Corbett ,  Devang K. Shah ,  Srishylam Simharajan ,  Toby Smith

IPC: G06F17/30

CPC classification number: G06F16/178 ,  G06F16/128 ,  G06F16/18 ,  G06F16/184

Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.