公开(公告)号：US10025534B1

公开(公告)日：2018-07-17

申请号：US15848374

申请日：2017-12-20

Applicant: Seagate Technology LLC

Inventor： Yan Naing ,  Harry Tiotantra ,  PohGuat Bay ,  Thein Than Zaw ,  CheeHou Peng

IPC: G11B5/09 ,  G06F3/06 ,  G06F12/0868 ,  G11B20/10 ,  G11B20/12

Abstract: Implementations disclosed herein include a method comprising receiving a TRIM request for a media cache in a storage media from a host, determining whether a TRIM range in the TRIM request overlaps with an active operation, invalidating the TRIM range responsive to determining that the TRIM range does not overlap with an active operation, and inserting at least one null node in the media cache. The method may comprise receiving a host read request, performing a media cache search for a read LBA range, and determining where data is located. If all the data is located in the media cache, the system reads from the media cache. If the data is located in a null node, patterning for the null node occurs. If the data is located partially in the main store, the media cache, or a null node, the data may be read, combined, and returned to the host.

公开(公告)号：US20190187936A1

公开(公告)日：2019-06-20

申请号：US16016197

申请日：2018-06-22

Applicant: Seagate Technology LLC

Inventor： Yan Naing ,  Harry Tiotantra ,  PohGuat Bay ,  Thein Than Zaw ,  CheeHou Peng

IPC: G06F3/06 ,  G11B20/10 ,  G11B20/12 ,  G06F12/0868

CPC classification number: G06F3/0676 ,  G06F3/0608 ,  G06F3/065 ,  G06F3/0656 ,  G06F3/0658 ,  G06F3/068 ,  G06F12/0866 ,  G06F12/0868 ,  G06F2212/1016 ,  G06F2212/222 ,  G06F2212/313 ,  G06F2212/7205 ,  G11B20/10527 ,  G11B20/1252

Abstract: Implementations disclosed herein include a method comprising receiving a TRIM request for a media cache in a storage media from a host, determining whether a TRIM range in the TRIM request overlaps with an active operation, invalidating the TRIM range responsive to determining that the TRIM range does not overlap with an active operation, and inserting at least one null node in the media cache. The method may comprise receiving a host read request, performing a media cache search for a read LBA range, and determining where data is located. If all the data is located in the media cache, the system reads from the media cache. If the data is located in a null node, patterning for the null node occurs. If the data is located partially in the main store, the media cache, or a null node, the data may be read, combined, and returned to the host.

公开(公告)号：US10346096B1

公开(公告)日：2019-07-09

申请号：US16016197

申请日：2018-06-22

Applicant: Seagate Technology LLC

Inventor： Yan Naing ,  Harry Tiotantra ,  PohGuat Bay ,  Thein Than Zaw ,  CheeHou Peng

IPC: G11B5/09 ,  G11B27/36 ,  G11B20/10 ,  G06F3/06 ,  G11B20/12 ,  G06F12/0868

Abstract: Implementations disclosed herein include a method comprising receiving a TRIM request for a media cache in a storage media from a host, determining whether a TRIM range in the TRIM request overlaps with an active operation, invalidating the TRIM range responsive to determining that the TRIM range does not overlap with an active operation, and inserting at least one null node in the media cache. The method may comprise receiving a host read request, performing a media cache search for a read LBA range, and determining where data is located. If all the data is located in the media cache, the system reads from the media cache. If the data is located in a null node, patterning for the null node occurs. If the data is located partially in the main store, the media cache, or a null node, the data may be read, combined, and returned to the host.