Memory management system and method

Patent metadata

Field	Value
Publication number	US-12050807-B2
Application number	US-202117239281-A
Country	US
Kind code	B2
Filing date	Apr 23, 2021
Priority date	Apr 23, 2021
Publication date	Jul 30, 2024
Grant date	Jul 30, 2024

Abstract

A method, computer program product, and computing system for defining a quantity of discrete storage portions within a storage system; entering an expansion mode during which the discrete storage portions are incrementally assigned to at least one processing node until a first assignment level target is achieved; once the first assignment level target is achieved, entering a utilization mode during which the utilization of the assigned discrete portions is increased until a first utilization level target is achieved; and once the first utilization level target is achieved, reentering the expansion mode during which additional discrete storage portions are incrementally assigned to the at least one processing node until a second assignment level target is achieved.

First claim

What is claimed is:

1. A computer-implemented method, executed on a computing device, comprising:
defining a quantity of discrete storage portions within a storage platform of a storage system;
entering a first expansion mode during which the discrete storage portions are incrementally assigned between a plurality of processing nodes of the storage system, for storing content, until a first assignment level target is achieved for the discrete storage portions;
once the first assignment level target is achieved, entering a utilization mode that is separate from the first expansion mode during which the utilization of the assigned discrete storage portions is increased by backfilling unused gaps within the assigned discrete storage portions with new inbound content broken into smaller portions until a first utilization level target is achieved;
once the first utilization level target is achieved, switching from the utilization mode to the first expansion mode during which additional discrete storage portions are incrementally assigned between the plurality of processing nodes until a second assignment level target is achieved for the discrete storage portions,
wherein when incrementally assigning the discrete storage portions between the plurality of processing nodes of the storage system, determining if the discrete storage portion being assigned is a last available discrete storage portion within the storage system; and
in response to determining the last available discrete storage portion, entering a second expansion mode during which the last available discrete storage portion is incrementally assigned by enabling each of the plurality of processing nodes to access and assign at least a sub-portion of a plurality of discrete sub-portions of the last discrete storage portion at a time for storing the content, until an assignment level expands to 100%.

2. The computer-implemented method of claim 1 further comprising:
once the second assignment level target is achieved, reentering the utilization mode during which the utilization of the assigned discrete storage portions is increased until a second utilization level target is achieved.

3. The computer-implemented method of claim 2 further comprising:
once the second utilization level target is achieved, reentering the first expansion mode one or more additional times during which additional discrete storage portions are incrementally assigned to the at least one processing node until one or more additional assignment level targets are achieved; and
once the one or more additional assignment level targets are achieved, reentering the utilization mode one or more additional times during which the utilization of the assigned discrete storage portions is increased until one or more additional utilization level targets are achieved.

4. The computer-implemented method of claim 1 wherein the at least one processing node is one of a plurality of processing nodes within a storage appliance.

5. The computer-implemented method of claim 4 wherein the plurality of processing nodes within the storage appliance each enter the first expansion mode at the same time.

6. The computer-implemented method of claim 4 wherein the plurality of processing nodes within the storage appliance each enter the utilization mode at the same time.

7. The computer-implemented method of claim 1 further comprising:
if the discrete storage portion is the last available discrete storage portion within the storage system, enabling each of the plurality of processing nodes to access at least the sub-portion of the last discrete storage portion.

8. A computer program product residing on a non-transitory computer readable medium having a plurality of instructions stored thereon which, when executed by a processor, cause the processor to perform operations comprising:
defining a quantity of discrete storage portions within a storage platform of a storage system;
entering a first expansion mode during which the discrete storage portions are incrementally assigned between a plurality of processing nodes of the storage system, for storing content, until a first assignment level target is achieved for the discrete storage portions;
once the first assignment level target is achieved, entering a utilization mode that is separate from the first expansion mode during which the utilization of the assigned discrete storage portions is increased by backfilling unused gaps within the assigned discrete storage portions with new inbound content broken into smaller portions until a first utilization level target is achieved;
once the first utilization level target is achieved, switching from the utilization mode to the first expansion mode during which additional discrete storage portions are incrementally assigned between the plurality of processing nodes until a second assignment level target is achieved for the discrete storage portions,
wherein when incrementally assigning the discrete storage portions between the plurality of processing nodes of the storage system, determining if the discrete storage portion being assigned is a last available discrete storage portion within the storage system; and
in response to determining the last available discrete storage portion, entering a second expansion mode during which the last available discrete storage portion is incrementally assigned by enabling each of the plurality of processing nodes to access and assign at least a sub-portion of a plurality of discrete sub-portions of the last discrete storage portion at a time for storing the content, until an assignment level expands to 100%.

9. The computer program product of claim 8 further comprising:
once the second assignment level target is achieved, reentering the utilization mode during which the utilization of the assigned discrete storage portions is increased until a second utilization level target is achieved.

10. The computer program product of claim 9 further comprising:
once the second utilization level target is achieved, reentering the first expansion mode one or more additional times during which additional discrete storage portions are incrementally assigned to the at least one processing node until one or more additional assignment level targets are achieved; and
once the one or more additional assignment level targets are achieved, reentering the utilization mode one or more additional times during which the utilization of the assigned discrete storage portions is increased until one or more additional utilization level targets are achieved.

11. The computer program product of claim 8 wherein the at least one processing node is one of a plurality of processing nodes within a storage appliance.

12. The computer program product of claim 11 wherein the plurality of processing nodes within the storage appliance each enter the first expansion mode at the same time.

13. The computer program product of claim 11 wherein the plurality of processing nodes within the storage appliance each enter the utilization mode at the same time.

14. The computer program product of claim 8 further comprising:
if the discrete storage portion is the last available discrete storage portion within the storage system, enabling each of the plurality of processing nodes to access at least the sub-portion of the last discrete storage portion.

15. A computing system including a processor and memory configured to perform operations comprising:
defining a quantity of discrete storage portions within a storage platform of a storage system;
entering a first expansion mode during which the discrete storage portions are i

Assignees

• Emc Ip Holding Co Llc

Inventors

• Caram Bruce E
• Vankamamidi Vamsi K
• Armangau Philippe
• Karri Ajay

Classifications

• G06F3/0635

  by changing the path, e.g. traffic rerouting, path reconfiguration · CPC title

• G06F3/0614

  Improving the reliability of storage systems · CPC title

• G06F3/067

  Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS] · CPC title

• G06F3/0653

  Monitoring storage devices or systems · CPC title

• G06F3/0631

  by allocating resources to storage systems · CPC title