Title: Distributed directory of named data elements in coordination namespace

Abstract

An approach is described that provides a distributed directory structure within a storage of an information handling system (a local node). A request is received with the request corresponding to a shared virtual address. The shared virtual address that is shared amongst a number of nodes that includes the local node and some remote nodes. A Global Address Space Directory (GASD) is retrieved that corresponds to a global virtual address space. The GASD is stored in a Coordination Namespace that is stored in a memory that is distributed amongst the nodes. A mapping that is included in the GASD is used to determine the node where the shared virtual address currently resides. The shared virtual address is then accessed from the node where it currently resides.

Inventors:

Johns, Charles Ray; Kahle, James Allan; Sexton, James C.; Nair, Ravi

Issue Date:

2021-05-25

Research Org.:

International Business Machines Corp., Armonk, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1823996

Patent Number(s):

11016908

Application Number:

16/216,863

Assignee:

International Business Machines Corporation (Armonk, NY)

Patent Classifications (CPCs):

G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

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G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

G06F12/0692 - {Multiconfiguration, e.g. local and global addressing}
G06F12/0824 - {Distributed directories, e.g. linked lists of caches}
G06F12/1009 - using page tables, e.g. page table structures
G06F12/1072 - Decentralised address translation, e.g. in distributed shared memory systems
G06F12/109 - for multiple virtual address spaces, e.g. segmentation
G06F2212/1024 - Latency reduction
G06F2212/1048 - Scalability
G06F2212/152 - Virtualized environment, e.g. logically partitioned system
G06F2212/154 - Networked environment
G06F2212/657 - Virtual address space management
G06F3/0608 - {Saving storage space on storage systems}
G06F3/0635 - {by changing the path, e.g. traffic rerouting, path reconfiguration}
G06F3/067 - {Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]}

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION

H04L67/1097 - {for distributed storage of data in a network, e.g. network file system [NFS], transport mechanisms for storage area networks [SAN] or network attached storage [NAS]

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DOE Contract Number:  

7216497

Resource Type:

Patent

Resource Relation:

Patent File Date: 12/11/2018

Country of Publication:

United States

Language:

English