公开(公告)号：US20220261322A1

公开(公告)日：2022-08-18

申请号：US17736351

申请日：2022-05-04

Applicant: Seagate Technology LLC

Inventor： Adithya Uligere Narasimhamurthy ,  Ritvik Viswanatha ,  Michael Barrell

IPC: G06F11/20 ,  G06F12/0806

Abstract: Systems and processes are disclosed to preserve data integrity during a storage controller failure. In some examples, a storage controller of an active-active controller configuration can back-up data and corresponding cache elements to allow a surviving controller to construct a correct state of a failed controller's write cache. To accomplish this, the systems and processes can implement a relative time stamp for the cache elements that allow the backed-up data to be merged on a block-by-block basis.

公开(公告)号：US11593236B2

公开(公告)日：2023-02-28

申请号：US17736351

申请日：2022-05-04

Applicant: Seagate Technology LLC

Inventor： Adithya Uligere Narasimhamurthy ,  Ritvik Viswanatha ,  Michael Barrell

IPC: G06F11/20 ,  G06F12/0806

Abstract: Systems and processes are disclosed to preserve data integrity during a storage controller failure. In some examples, a storage controller of an active-active controller configuration can back-up data and corresponding cache elements to allow a surviving controller to construct a correct state of a failed controller's write cache. To accomplish this, the systems and processes can implement a relative time stamp for the cache elements that allow the backed-up data to be merged on a block-by-block basis.

公开(公告)号：US11327858B2

公开(公告)日：2022-05-10

申请号：US16990994

申请日：2020-08-11

Applicant: Seagate Technology LLC

Inventor： Adithya Uligere Narasimhamurthy ,  Ritvik Viswanatha ,  Michael Barrell

IPC: G06F11/20 ,  G06F12/0806

Abstract: Systems and processes are disclosed to preserve data integrity during a storage controller failure. In some examples, a storage controller of an active-active controller configuration can back-up data and corresponding cache elements to allow a surviving controller to construct a correct state of a failed controller's write cache. To accomplish this, the systems and processes can implement a relative time stamp for the cache elements that allow the backed-up data to be merged on a block-by-block basis.