公开(公告)号：US11169817B1

公开(公告)日：2021-11-09

申请号：US16401369

申请日：2019-05-02

Applicant: PURE STORAGE, INC.

Inventor： Marco Sanvido ,  Richard Hankins ,  Mark McAuliffe ,  HuiHui Cheng ,  Nidhi Doshi ,  Naveen Neelakantam ,  Neil Vachharajani

IPC: G06F9/00 ,  G06F15/177 ,  G06F9/4401

Abstract: A system and method for efficiently starting up a plurality of solid-state storage devices. A computing system includes one or more storage devices storing data in multiple allocation units (AUs). In a boot region, a data storage controller maintains an AU management set that identifies a state of various AUs in the system. In various embodiments, the management set includes an identification of a subset of free AUs, transitional AU, unincorporated AUs, and speculative AUs. At various times, information corresponding to the AU management set is stored to non-volatile storage. During a boot sequence, the AU management set information is accessed and the identified AUs are searched to identify allocated AUs rather than performing a search of all of the AUs in the system.

公开(公告)号：US10296354B1

公开(公告)日：2019-05-21

申请号：US14602052

申请日：2015-01-21

Applicant: PURE Storage, Inc.

Inventor： Marco Sanvido ,  Richard Hankins ,  Mark McAuliffe ,  HuiHui Cheng ,  Nidhi Doshi ,  Naveen Neelakantam ,  Neil Vachharajani

IPC: G06F9/00 ,  G06F9/24 ,  G06F9/4401

Abstract: A system and method for efficiently starting up a plurality of solid-state storage devices. A computing system includes one or more storage devices storing data in multiple allocation units (AUs). In a boot region, a data storage controller maintains an AU management set that identifies a state of various AUs in the system. In various embodiments, the management set includes an identification of a subset of free AUs, transitional AU, unincorporated AUs, and speculative AUs. At various times, information corresponding to the AU management set is stored to non-volatile storage. During a boot sequence, the AU management set information is accessed and the identified AUs are searched to identify allocated AUs rather than performing a search of all of the AUs in the system.