Netapp, Inc.

Debanjan Paul

Cheryl Marie Thompson

Qinghua Zheng

Venkateswarlu Tella

Palak Sharma

Sindhushree K N

Dibyasri Nandi

Dinakaran Narayanan

Techniques are provided for implementing a unified object format. The unified object format is used to format data in a performance tier (e.g., infrequently accessed data, snapshot data, etc.) into objects that are stored into an object store for low cost, scalable, long term storage compared to storage of the performance tier. With the unified object format, compression of the data may be retained when the data is stored as the objects into the object store. Additional compression may also be provided for the data in the objects. The unified object format includes slot header metadata used to track the location of the data within the object notwithstanding the data being compressed and/or stored at non-fixed boundaries. The slot header metadata may be cached at the performance tier for improved read performance and may be repaired by a repair subsystem (a slot header repair subsystem).

Persistent metafile used to cache slot header metadata for improved read performance of objects within an object store

Repair subsystem for persistent metafile repair to improve resiliency

Unified object format for retaining compression and performing additional compression for reduced storage consumption in an object store

Growing community of inventors

West Bengal, India

Debanjan Paul