US 2016/0110104 A1Published application

Apparatus and method for routing information in a non-volatile memory-based storage device

AssigneeSkyera, LLC

InventorsRadoslav DANILAK, William RADKE

Life of this patent

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Abstract

Various systems, methods, apparatuses, and computer-readable media for accessing a storage device are described. In certain example embodiments, an active/active fault-tolerant storage device comprising two or more controllers may be implemented. In one aspect, each controller may have two or more processing entities for distributing the processing of the I/O requests. In one embodiment, the configuration of the components, modules and the controller board may be arranged in a manner to enhance heat dissipation, reduce power consumption, spread the power and work load, and reduce latency. In one embodiment, each controller may be coupled to the non-volatile memory (NVM) blades comprising the non-volatile memory (NVM) storage medium. In one example implementation, a standardized protocol, such as the Peripheral Component Interconnect Express protocol may be used for communicating amongst the various components of the controller and also the NVM storage medium.

Claims20

Dependent claims

A storage device comprising:

a plurality of non-volatile memory (NVM) blades, each NVM blade comprising non-volatile memory;
a first processor coupled to the plurality of NVM blades, wherein the first processor is configured to:
receive a first input/output (I/O) request;
determine if the first I/O request is a first read request or a first write request;
in response to determining that the first I/O request is a first read request,
determine a location in a first target NVM blade from which first data is to be read;
request and receive the first data associated with the first I/O request from the first target NVM blade;
and
in response to determining that the first I/O request is a first write request;
determine the location in the first target NVM blade at which second data is to be stored;
transmit second data to the first target NVM blade for storing the second data in the first target NVM blade;
and
a second processor coupled to the plurality of NVM blades, wherein the second processor is configured to:
receive a second I/O request;
determine if the second I/O request is a second read request or a second write request;
in response to determining that the second I/O request is a second read request,
determine a location in a second target NVM blade from which third data is to be read;
and
request and receive the third data associated with the second I/O request from the second target NVM blade;
and
in response to determining that the second I/O request is a second write request;
determine the location in the second target NVM blade at which fourth data is to be stored;
and
transmit fourth data to the second target NVM blade for storing the fourth data in the second target NVM blade.

21 more elements

A method for storing data, comprising:

receiving, by a first processor, a first input/output (I/O) request, wherein the first processor is coupled to a plurality of non-volatile memory (NVM) blades, each NVM blade comprising non-volatile memory (NVM);
determining, by the first processor, if the I/O request is a first read or a first write request;
in response to determining that the first I/O request is a first read request,
determining, by the first processor, a location in a first target NVM blade from which first data is to be read, and
requesting and receiving, by the first processor, the first data associated with the first I/O request from the first target NVM blade;
and
in response to determining that the first I/O request is a first write request,
determining, by the first processor, the location in the first target NVM blade at which second data is to be stored, and
transmitting, by the first processor, second data to the first target NVM blade for storing the second data in the first target NVM blade;
and
receiving, by a second processor, a second input/output (I/O) request, wherein the second processor is coupled to the plurality of NVM blades;
determining, by the second processor, if the second I/O request is a second read or a second write request;
in response to determining that the second I/O request is a second read request,
determining, by the second processor, a location in a second target NVM blade from which third data is to be read;
requesting and receive, by the second processor, the third data associated with the second I/O request from the second target NVM blade;
and
in response to determining that the second I/O request is a second write request;
determining, by the second processor, the location in the second target NVM blade at which fourth data is to be stored;
and
transmitting, by the second processor, fourth data to the second target NVM blade for storing the fourth data in the second target NVM blade.

17 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/961,184Filed 7 Dec 2015
Priority: 12 Nov 2013
Published: 21 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G06F 3/061
Specifically adapted to achieve a particular effect: improving I/O performance
G06F 3/0655
Making use of a particular technique: vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more…
G06F 3/0688
Plurality of storage devices: non-volatile semiconductor memory arrays
G06F 12/0246
Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory: in block erasable memory, e.g. flash memory

Family

Application14/078,302Continuation · filed 12 Nov 2013
Application14/961,184Continuation
US 2015/0134880 A1Published application
US 9,229,855 B2Related patent
US 9,507,529 B2Related patent
US 2016/0110104 A1This patent

From the US filing history. Foreign family members aren’t listed.