Granted Patent B2

US 12,578,971 · App. 18/086,214 · Granted Mar 17, 2026

Inventor: Taher Vohra (Sunnyvale, CA)

Assignee: Pure Storage, Inc.

G06F9/4411G06F9/45533

Abstract

Claims (47)

1 . A method comprising:

receiving, by a container storage interface (CSI) filter driver executing on a node of a container-based cluster managed by a container orchestrator, a request to perform a storage system-based control plane operation associated with a containerized application executing on the node, the CSI filter driver configured to prevent a CSI driver also executing on the node from being exposed directly to any external commands from a network;

determining, by the CSI filter driver, that the storage system-based control plane operation is to be performed with respect to a legacy storage system configured to store data for one or more non-containerized applications;

generating, by the CSI filter driver based on the determining that the storage system-based control plane operation is to be performed with respect to the legacy storage system, a command configured to direct a storage interface driver associated with the legacy storage system to perform the storage system-based control plane operation;

transmitting, by the CSI filter driver, the command to the legacy storage interface driver, the legacy storage interface driver configured to perform the storage system-based control plane operation with respect to the storage system; and

transmitting, by the CSI filter driver, an additional command to the CSI driver, the additional command configured to direct the CSI driver to perform an additional storage system-based control plane operation associated with an additional containerized application executing on the node, the additional storage system-based control plane operation configured to be performed with respect to an additional storage system configured to store data for one or more containerized applications.

2 . The method of claim 1 , wherein the non-containerized applications comprise virtual machine-based applications executing within a virtual machine cluster and the legacy storage system comprises a virtual machine-based storage system attached to the virtual machine cluster.

3 . The method of claim 2 , wherein the storage interface driver executes on at least one of the virtual machine cluster or a cloud environment that includes the virtual machine cluster.

4 . The method of claim 1 , wherein the transmitting the command to the storage interface driver is performed using a communication protocol associated with the legacy storage interface driver.

5 . The method of claim 1 , further comprising:

receiving, by the CSI filter driver prior to the transmitting the additional command to the CSI driver, an additional request to perform the additional storage system-based control plane operation associated with the additional containerized application executing on the node;

determining, by the CSI filter driver, that the additional storage system-based control plane operation is to be performed with respect to the additional storage system configured to store data for the one or more containerized applications; and

generating, by the CSI filter driver based on the determining that the additional storage system is to be performed with respect to the additional storage system-based control plane operation, the additional command.

6 . The method of claim 5 , wherein:

the additional storage system is attached to the container-based cluster.

7 . The method of claim 1 , wherein:

the request comprises a first set of one or more instructions that utilize a CSI protocol; and

the generating the command comprises translating the first set of one or more instructions into a second set of one or more instructions that utilize a legacy protocol associated with the storage interface driver, wherein the command comprises the second set of one or more instructions.

8 . The method of claim 1 , wherein the storage system-based control plane operation comprises provisioning a volume on the legacy storage system.

9 . The method of claim 1 , wherein the storage system-based control plane operation comprises one or more of deleting a volume on the legacy storage system, mounting the volume, modifying a setting associated with the volume, generating a recovery dataset for data stored within the volume, or moving the volume to a different location.

10 . A system comprising:

a memory storing instructions; and

one or more processors communicatively coupled to the memory and configured to execute the instructions to implement a container storage interface (CSI) filter driver configured to execute on a node of a container-based cluster managed by a container orchestrator and to prevent a CSI driver also executing on the node from being exposed directly to any external commands from a network, the CSI filter driver further configured to perform a process comprising:

receiving a request to perform a storage system-based control plane operation associated with a containerized application executing on the node;

determining that the storage system-based control plane operation is to be performed with respect to a legacy storage system configured to store data for one or more non-containerized applications;

generating, based on the determining that the storage system-based control plane operation is to be performed with respect to the legacy storage system, a command configured to direct a storage interface driver associated with the legacy storage system to perform the storage system-based control plane operation;

transmitting the command to the legacy storage interface driver, the legacy storage interface driver configured to perform the storage system-based control plane operation with respect to the storage system; and

transmitting an additional command to the CSI driver, the additional command configured to direct the CSI driver to perform an additional storage system-based control plane operation associated with an additional containerized application executing on the node, the additional storage system-based control plane operation configured to be performed with respect to an additional storage system configured to store data for one or more containerized applications.

11 . The system of claim 10 , wherein the non-containerized applications comprise virtual machine-based applications executing within a virtual machine cluster and the legacy storage system comprises a virtual machine-based storage system attached to the virtual machine cluster.

12 . The system of claim 10 , wherein the transmitting the command to the storage interface driver is performed using a communication protocol associated with the legacy storage interface driver.

13 . The system of claim 10 , wherein the process further comprises:

receiving, prior to the transmitting the additional command to the CSI driver, an additional request to perform the additional storage system-based control plane operation associated with the additional containerized application executing on the node;

determining that the additional storage system-based control plane operation is to be performed with respect to the additional storage system configured to store data for the one or more containerized applications; and

generating, based on the determining that the additional storage system is to be performed with respect to the additional storage system-based control plane operation, the additional command.

14 . The system of claim 13 , wherein:

the additional storage system is attached to the container-based cluster.

15 . The system of claim 10 , wherein:

the request comprises a first set of one or more instructions that utilize a CSI protocol; and

the generating the command comprises translating the first set of one or more instructions into a second set of one or more instructions that utilize a legacy protocol associated with the storage interface driver, wherein the command comprises the second set of one or more instructions.

16 . A computer program product embodied in a non-transitory computer readable storage medium and comprising computer instructions for implementing a container storage interface (CSI) filter driver configured to execute on a node of a container-based cluster managed by a container orchestrator and to prevent a CSI driver also executing on the node from being exposed directly to any external commands from a network, the CSI filter driver further configured to perform a process comprising:

receiving a request to perform a storage system-based control plane operation associated with a containerized application executing on the node;

determining that the storage system-based control plane operation is to be performed with respect to a legacy storage system configured to store data for one or more non-containerized applications;

generating, based on the determining that the storage system-based control plane operation is to be performed with respect to the legacy storage system, a command configured to direct a storage interface driver associated with the legacy storage system to perform the storage system-based control plane operation;

transmitting the command to the legacy storage interface driver, the legacy storage interface driver configured to perform the storage system-based control plane operation with respect to the storage system; and

transmitting an additional command to the CSI driver, the additional command configured to direct the CSI driver to perform an additional storage system-based control plane operation associated with an additional containerized application executing on the node, the additional storage system-based control plane operation configured to be performed with respect to an additional storage system configured to store data for one or more containerized applications.

17 . The computer program product of claim 16 , wherein the non-containerized applications comprise virtual machine-based applications executing within a virtual machine cluster and the legacy storage system comprises a virtual machine-based storage system attached to the virtual machine cluster.

18 . The computer program product of claim 16 , wherein the transmitting the command to the storage interface driver is performed using a communication protocol associated with the legacy storage interface driver.

Assignments (1)

Continuity (1)

References Cited (82)