Netapp, Inc.

Arjun Singh Kharai

Dnyaneshwar Nagorao Pawar

Arindam Banerjee

Mrinal K Bhattacharjee

Systems and methods for using object storage as a primary storage tier for a file system of a virtual storage system are provided. According to one embodiment, ephemeral storage of a host on which a virtual storage system is running in the cloud is used as an external cache in which all or some subset of file system metadata may be stored, for example, to boost read IOPS and reduce latency of the read path. In various examples, external cache policies may be defined to trigger adding to, updating, and/or re-warming the external cache to accelerate access to file system metadata, thereby making a virtual storage solution that maintains all file system data and file system metadata within object storage a suitable and cost-effective platform for certain types of workloads. In some example, the working set of a workload may also be kept in the external cache to further accelerate read performance of the virtual storage system.

Cache-based file system on object storage

Systems and methods for creating a virtual storage appliance on an object store to which an on-premises storage solution has tiered cold data are provided. According to one embodiment, a physical storage system deployed in an on-premises environment replicates hot data of a file system of the physical storage system stored on a set of disks associated with the physical storage system to an object storage service of a hyperscaler to which cold data of the file system has previously been tiered out by the file system. An instance of a virtual storage system may then be created within the hyperscaler that utilizes the object storage service as a primary storage tier. Finally, analytics involving a dataset, including both the data and the cold data, may be performed by accessing the dataset via the virtual storage system.

Facilitating analytics involving cold data tiered to an object store by an on-premises storage solution by creating a virtual storage appliance on the object store

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Uttarakhand, India

Arjun Singh Kharai