System and method for managing storage saturation in storage systems

Patent metadata

Field	Value
Publication number	US-12307094-B2
Application number	US-202318159822-A
Country	US
Kind code	B2
Filing date	Jan 26, 2023
Priority date	Jan 26, 2023
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A method, computer program product, and computing system for measuring a total storage device throughput value for a workload processed on a storage device within a storage array enclosure of a storage system. A maximum storage device throughput value may be determined for the workload. A storage device saturation value for the storage device may be determined based upon, at least in part, the total storage device throughput value for the workload and the maximum storage device throughput value for the workload. One or more IO requests may be processed on the storage device based upon, at least in part, the storage device saturation value determined for the storage device.

First claim

What is claimed is:

1. A computer-implemented method, executed on a computing device, comprising:
measuring a total storage device throughput value for a workload processed on a storage device within a storage array enclosure of a storage system, wherein the workload includes an average IO request size;
determining a maximum storage device throughput value for the workload, wherein determining the maximum storage device throughput value for the workload includes:
determining a maximum read throughput value for the average IO request size of the workload;
determining a maximum write throughput value for the average IO request size of the workload;
determining a read ratio as a function of read IO throughput and write IO throughput; and
determining an average service time per IO request as a function of the maximum read throughput value for the average IO request size for the workload and the maximum write throughput value for the average IO request size for the workload;

determining a storage device saturation value for the storage device based upon, at least in part, the total storage device throughput value for the workload and the maximum storage device throughput value for the workload; and
processing one or more IO requests on the storage device based upon, at least in part, the storage device saturation value determined for the storage device.

2. The computer-implemented method of claim 1 , wherein the storage device is a solid state drive (SSD) storage device.

3. The computer-implemented method of claim 1 , wherein the storage device is a hard disk drive (HDD) storage device.

4. The computer-implemented method of claim 1 , wherein the workload includes a combination of one or more read IO requests and one or more write IO requests processed on the storage device.

5. 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:
measuring a total storage device throughput value for a workload processed on a storage device within a storage array enclosure of a storage system, wherein the workload includes an average IO request size;
determining a maximum storage device throughput value for the workload, wherein determining the maximum storage device throughput value for the workload includes:
determining a maximum read throughput value for the average IO request size of the workload;
determining a maximum write throughput value for the average IO request size of the workload;
determining a read ratio as a function of read IO throughput and write IO throughput; and
determining an average service time per IO request as a function of the maximum read throughput value for the average IO request size for the workload and the maximum write throughput value for the average IO request size for the workload;

determining a storage device saturation value for the storage device based upon, at least in part, the total storage device throughput value for the workload and the maximum storage device throughput value for the workload; and
processing one or more IO requests on the storage device based upon, at least in part, the storage device saturation value determined for the storage device.

6. The computer program product of claim 5 , wherein the storage device is a solid state drive (SSD) storage device.

7. The computer program product of claim 5 , wherein the storage device is a hard disk drive (HDD) storage device.

8. The computer program product of claim 5 , wherein the workload includes a combination of one or more read IO requests and one or more write IO requests processed on the storage device.

9. A computing system comprising:
a memory; and
a processor configured to measure a total storage device throughput value for a workload processed on a storage device within a storage array enclosure of a storage system, wherein the processor is further configured to determine a maximum storage device throughput value for the workload, wherein the workload includes an average IO request size;
wherein the processor is further configured to determining a maximum storage device throughput value for the workload, wherein determining the maximum storage device throughput value for the workload includes:
determining a maximum read throughput value for the average IO request size of the workload;
determining a maximum write throughput value for the average IO request size of the workload;
determining a read ratio as a function of read IO throughput and write IO throughput;
determining an average service time per IO request as a function of the maximum read throughput value for the average IO request size for the workload and the maximum write throughput value for the average IO request size for the workload; and
determine a storage device saturation value for the storage device based upon, at least in part, the total storage device throughput value for the workload and the maximum storage device throughput value for the workload, and wherein the processor is further configured to process one or more IO requests on the storage device based upon, at least in part, the storage device saturation value determined for the storage device.

10. The computing system of claim 9 , wherein the storage device is a solid state drive (SSD) storage device.

11. The computing system of claim 9 , wherein the storage device is a hard disk drive (HDD) storage device.

12. The computing system of claim 9 , wherein the workload includes a combination of one or more read IO requests and one or more write IO requests processed on the storage device.

Assignees

• Dell Products Lp

Inventors

• Natu Gajanan S
• Raghavan Rasa
• Morley Steven A

Classifications

• G06F3/0653

  Monitoring storage devices or systems · CPC title

• G06F3/0659

  Command handling arrangements, e.g. command buffers, queues, command scheduling · CPC title

• G06F3/0673

  Single storage device · CPC title

• G06F3/0683

  Plurality of storage devices · CPC title

• G06F3/0613 Primary

  in relation to throughput · CPC title