公开(公告)号：US20190114559A1

公开(公告)日：2019-04-18

申请号：US16096983

申请日：2016-04-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Thomas David Evans

IPC: G06N20/00 ,  G06F11/22

Abstract: Example implementations relate to a failure policy. For example, in an implementation, storage device status data is encoded into storage device states. An action is chosen based on the storage device state according to a failure policy, where the failure policy prescribes, based on a probabilistic model, whether for a particular storage device state a corresponding action is to take no action or to initiate a failure mitigation procedure on a storage device. The failure policy is rewarded according to a timeliness of choosing to initiate the failure mitigation procedure relative to a failure of the storage device.

公开(公告)号：US11144453B2

公开(公告)日：2021-10-12

申请号：US16090930

申请日：2016-04-05

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Siamak Nazari ,  Thomas David Evans ,  Faris Hindi ,  Daniel Aaron Harbaugh ,  Anahita Afkham

IPC: G06F12/02 ,  G06F3/06

Abstract: In some examples, sectors of a solid-state drive are unmapped to initialize the sectors. The sectors include a data portion and a protection portion. When an unmapped sector is read, the solid-state drive can return a pre-set value for the unmapped sector, where the pre-set value includes a known fixed value to represent the protection portion of the unmapped sector. The storage controller is to recognize the known fixed value returned by the solid-state drive responsive to the read as representing the unmapped sector as being initialized, but not written to.

公开(公告)号：US11468359B2

公开(公告)日：2022-10-11

申请号：US16096983

申请日：2016-04-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Thomas David Evans

IPC: G06N20/00 ,  G06F11/07 ,  G06F11/00 ,  G06F11/30 ,  G06N3/00 ,  G06F11/22 ,  G06F11/20

Abstract: Example implementations relate to a failure policy. For example, in an implementation, storage device status data is encoded into storage device states. An action is chosen based on the storage device state according to a failure policy, where the failure policy prescribes, based on a probabilistic model, whether for a particular storage device state a corresponding action is to take no action or to initiate a failure mitigation procedure on a storage device. The failure policy is rewarded according to a timeliness of choosing to initiate the failure mitigation procedure relative to a failure of the storage device.

公开(公告)号：US20190108122A1

公开(公告)日：2019-04-11

申请号：US16090930

申请日：2016-04-05

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Siamak Nazari ,  Thomas David Evans ,  Faris Hindi ,  Daniel Aaron Harbaugh ,  Anahita Afkham

IPC: G06F12/02 ,  G06F3/06

Abstract: Examples disclosed herein relate to unmapping sectors of a solid-state drive to initialize the sectors. The sectors include a data portion and a protection portion. In one example, when an unmapped sector is read, the solid-state drive can return a pre-set value for the sector, where the pre-set value includes a known fixed value to represent the protection portion. In one example, a subset of the sectors is unmapped to initialize the subset. In one example, when read, a storage controller can recognize the known fixed value.