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1. (WO2017040070) ERASE BLOCK STATE DETECTION

Pub. No.:    WO/2017/040070    International Application No.:    PCT/US2016/047808
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 20 01:59:59 CEST 2016
IPC: G06F 3/06
Applicants: PURE STORAGE, INC.
Inventors: HAYES, John Martin
MILADINOVIC, Nenad
KANNAN, Hari
Title: ERASE BLOCK STATE DETECTION
Abstract:
A method for erasure detection in a storage cluster is provided. The method includes establishing a connection, via a network, of a storage unit to one of a plurality of storage nodes of a storage cluster and determining, for at least one page of a storage memory of the storage unit, that the at least one page is erased. The storage unit is one of a plurality of storage units configured to store user data in memory of the storage units in accordance with direction from the plurality of storage nodes. The method includes communicating from the storage unit to the one of the plurality of storage nodes that the at least one page is erased.