Invention Grant
- Patent Title: Disaster recovery for high-bandwidth distributed archives
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Application No.: US15885670Application Date: 2018-01-31
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Publication No.: US10733053B1Publication Date: 2020-08-04
- Inventor: Ethan L. Miller , Ronald Karr
- Applicant: Pure Storage, Inc.
- Applicant Address: US CA Mountain View
- Assignee: Pure Storage, Inc.
- Current Assignee: Pure Storage, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Womble Bond Dickinson (US) LLP
- Main IPC: G06F11/10
- IPC: G06F11/10

Abstract:
A method for disaster recovery for distributed storage is provided. The method includes distributing erasure coded data to N storage systems at N sites so that the data is recoverable from N−1 storage systems at N−1 sites in case of failure of one of the N storage systems. The method includes coordinating movement of one or more storage devices of a replacement storage system to each of the N−1 sites and transferring data for rebuilding the erasure coded data, from each of the N−1 storage systems to the one or more storage devices of the replacement storage system, responsive to the failure of the one of the N storage systems. The method includes coordinating movement of the one or more storage devices of the replacement storage system to the one of the N sites or a further replacement site, to restore recoverability of the distributed archival storage.
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