Netapp, Inc.

Oath Inc.

Sridevi Jantli

Anil Paul Thoppil

Cheryl Marie Thompson

Qinghua Zheng

Jeevan Hunsur Eswara

Nicholas Gerald Zehender

Ronak Girishbhai Ghadiya

Ananthan Subramanian

Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.

Object store mirroring based on checkpoint

Object store mirroring with garbage collection

Techniques are provided for orphan object detection, invalid sequence number detection, and asynchronous object cleanup. A storage system may store data within one or more tiers of storage, such as a storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Orphan objects, within the remote object store, that are no longer used by the storage system may be detected and/or deleted. When an aggregate of volumes is deleted, corresponding objects, within the remote object store, may be identified and/or deleted. Invalid sequence numbers (e.g., lost or corrupt sequence numbers locally maintained in a metafile) assigned to objects within the remote object store may be identified, deleted, and/or fixed.

Object and sequence number management

Object store mirroring and garbage collection during synchronization of the object store

Object store mirroring where during resync of two storage bucket, objects are transmitted to each of the two storage bucket

Object store mirroring and resync, during garbage collection operation, first bucket (with deleted first object) with second bucket

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Vancouver, Canada

Sridevi Jantli