公开(公告)号：GB2594027A

公开(公告)日：2021-10-13

申请号：GB202111577

申请日：2020-01-21

Applicant: IBM

Inventor： HUI ZHANG ,  CLINT HARDY ,  KARL ALLEN NIELSEN ,  MATTHEW KALOS ,  QIANG XIE

IPC: G06F16/00 ,  G06F16/11

Abstract: A computer-implemented method includes identifying a request to migrate data associated with a volume from a source storage pool having a first rank extent size to a destination storage pool having a second rank extent size smaller than the first rank extent size, creating a correspondence between logical volume extents of the volume and physical offset locations within rank extents of the source storage pool, and migrating data from one or more ranks of the source storage pool to one or more ranks of the destination storage pool, utilizing the correspondence between the logical volume extents of the volume and the physical offset locations within the rank extents of the source storage pool.

公开(公告)号：GB2594027B

公开(公告)日：2022-03-09

申请号：GB202111577

申请日：2020-01-21

Applicant: IBM

Inventor： HUI ZHANG ,  CLINT HARDY ,  KARL ALLEN NIELSEN ,  MATTHEW KALOS ,  QIANG XIE

IPC: G06F16/00 ,  G06F16/11

Abstract: A computer-implemented method according to one embodiment includes identifying a request to migrate data associated with a volume from a source storage pool having a first rank extent size to a destination storage pool having a second rank extent size smaller than the first rank extent size, creating a correspondence between logical volume extents of the volume and physical offset locations within rank extents of the source storage pool, and migrating data from one or more ranks of the source storage pool to one or more ranks of the destination storage pool, utilizing the correspondence between the logical volume extents of the volume and the physical offset locations within the rank extents of the source storage pool.