公开(公告)号：US20240319877A1

公开(公告)日：2024-09-26

申请号：US18188840

申请日：2023-03-23

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Abhishek JAISWAL ,  Subhojit ROY ,  Bharti SONI ,  Komal Shailendra SHAH ,  Shrirang Shrikant BHAGWAT

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/0655 ,  G06F3/0679

Abstract: A first volume is maintained at a primary site and a second volume is maintained at a secondary site, where operations to mirror the first volume at the primary site to the second volume at the secondary site are performed while other volumes of the primary site and the secondary site are maintained in a remote copy relationship. Input/Output (I/O) operations comprising writing a metadata on the first volume at the primary site are performed and corresponding read I/O operations are performed on the second volume at the secondary site. In response to determining that the metadata read in two consecutive read I/O operations on the second volume at the secondary site does not reflect updates as requested to be made to the first volume at the primary site, determining that the primary site has failed.