公开(公告)号：US20170168756A1

公开(公告)日：2017-06-15

申请号：US15325774

申请日：2014-07-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Kouei Yamada ,  Siamak Nazari ,  Brian Rutledge ,  Jianding Luo ,  Jin Wang ,  Mark Doherty ,  Richard Dalzell ,  Peter Hynes

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0689 ,  G06F9/5061 ,  G06F9/5066 ,  G06F9/5083 ,  G06F11/2094 ,  G06F12/00 ,  G06F13/14

Abstract: A system that includes a plurality of nodes configured to execute storage transactions. The nodes include a first node and a plurality of other nodes. The storage transactions are grouped into transaction sets that are to be executed in a predetermined order that ensures that dependencies between the transactions are observed. A cluster sequencer that resides on the first node is configured to increment a sequence number that identifies an active transaction set of the transaction sets and send the sequence number from the first node to the plurality of other nodes. Upon receipt of the sequence number, each one of the plurality of other nodes begins executing the transactions of the active transaction set without waiting for confirmation that all of the plurality of other nodes have the same sequence number.

公开(公告)号：US11030107B2

公开(公告)日：2021-06-08

申请号：US16389266

申请日：2019-04-19

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gurinder Shergill ,  Kouei Yamada

IPC: G06F12/0888 ,  G06F12/0811

Abstract: Examples include storage class memory (SCM) queue depth threshold adjustment. Examples may adjust the SCM queue depth threshold of a controller based on whether an IO request latency threshold for an SCM read cache is exceeded. Examples may determine whether to process an IO request using the SCM read cache based on an SCM queue depth of the controller and the SCM queue depth threshold.

公开(公告)号：US10922233B2

公开(公告)日：2021-02-16

申请号：US16389266

申请日：2019-04-19

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gurinder Shergill ,  Kouei Yamada

IPC: G06F12/0888 ,  G06F12/0811

Abstract: Examples include storage class memory (SCM) queue depth threshold adjustment. Examples may adjust the SCM queue depth threshold of a controller based on whether an IO request latency threshold for an SCM read cache is exceeded. Examples may determine whether to process an IO request using the SCM read cache based on an SCM queue depth of the controller and the SCM queue depth threshold.

公开(公告)号：US10776276B2

公开(公告)日：2020-09-15

申请号：US16205742

申请日：2018-11-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gurinder Shergill ,  Kouei Yamada

IPC: G06F12/08 ,  G06F12/0888 ,  G06F3/06

Abstract: Examples may bypass storage class memory (SCM) read cache based on a queue depth threshold. Examples may adjust a queue depth threshold for an SCM read cache based on an amount of data read from and written to the SCM read cache in a time period, and may bypass the SCM read cache based on a comparison of a number of outstanding IOs for the SCM read cache to a queue depth threshold for the SCM read cache.

公开(公告)号：US20200334163A1

公开(公告)日：2020-10-22

申请号：US16389266

申请日：2019-04-19

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gurinder Shergill ,  Kouei Yamada

IPC: G06F12/0888 ,  G06F12/0811

Abstract: Examples include storage class memory (SCM) queue depth threshold adjustment. Examples may adjust the SCM queue depth threshold of a controller based on whether an IO request latency threshold for an SCM read cache is exceeded. Examples may determine whether to process an IO request using the SCM read cache based on an SCM queue depth of the controller and the SCM queue depth threshold.

公开(公告)号：US10705968B2

公开(公告)日：2020-07-07

申请号：US16205742

申请日：2018-11-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gurinder Shergill ,  Kouei Yamada

IPC: G06F12/08 ,  G06F12/0888

Abstract: Examples may bypass storage class memory (SCM) read cache based on a queue depth threshold. Examples may adjust a queue depth threshold for an SCM read cache based on an amount of data read from and written to the SCM read cache in a time period, and may bypass the SCM read cache based on a comparison of a number of outstanding IOs for the SCM read cache to a queue depth threshold for the SCM read cache.

公开(公告)号：US20200174938A1

公开(公告)日：2020-06-04

申请号：US16205742

申请日：2018-11-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gurinder Shergill ,  Kouei Yamada

IPC: G06F12/0888

Abstract: Examples may bypass storage class memory (SCM) read cache based on a queue depth threshold. Examples may adjust a queue depth threshold for an SCM read cache based on an amount of data read from and written to the SCM read cache in a time period, and may bypass the SCM read cache based on a comparison of a number of outstanding IOs for the SCM read cache to a queue depth threshold for the SCM read cache.