Invention Grant
- Patent Title: Non-idempotent primitives in fault-tolerant memory
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Application No.: US15500067Application Date: 2015-01-30
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Publication No.: US10409681B2Publication Date: 2019-09-10
- Inventor: Derek Alan Sherlock , Harvey Ray
- Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
- Applicant Address: US TX Houston
- Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee Address: US TX Houston
- Agency: Hewlett Packard Enterprise Patent Department
- International Application: PCT/US2015/013898 WO 20150130
- International Announcement: WO2016/122637 WO 20160804
- Main IPC: G06F11/10
- IPC: G06F11/10 ; G06F11/14 ; G06F3/06 ; G06F11/20

Abstract:
According to an example, a retransmission sequence involving non-idempotent primitives in a fault-tolerant memory fabric may be modified. For example, a redundancy controller may request a sequence to access a stripe in the fault-tolerant memory fabric, wherein the sequence involves a non-idempotent primitive. In response to determining an expiration of a time threshold for the non-idempotent primitive, the redundancy controller may read other data in other cachelines in the stripe, calculate a new parity value by performing an idempotent exclusive-or primitive on the new data with the other data in the stripe, and write the new parity to the stripe using an idempotent write primitive.
Public/Granted literature
- US20170242753A1 NON-IDEMPOTENT PRIMITIVES IN FAULT-TOLERANT MEMORY Public/Granted day:2017-08-24
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