METHODS FOR MANAGING STORAGE VIRTUAL MACHINE CONFIGURATION CHANGES IN A DISTRIBUTED STORAGE SYSTEM AND DEVICES THEREOF

• US 20160050113A1
• Filed: 08/14/2014
• Published: 02/18/2016
• Est. Priority Date: 08/14/2014
• Status: Active Grant

• Current Assignee: NetApp, Inc.
• Original Assignee: NetApp, Inc.
• Inventors: Sridhara, Harsha, Ramani, Balaji
• Granted Patent: US 10,397,053 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1446 Point-in-time backing up or restoration of persistent data
• CPC Class Codes: G06F 2009/45579 I/O management, e.g. providing access to device drivers or storage
• CPC Class Codes: G06F 2201/815 Virtual middleware or OS functionality using virtual machines to implement generic software techniques for error detection or fault masking G06F11/1484
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/0853 by actively collecting configuration information or by backing up configuration information
• CPC Class Codes: H04L 41/0895 Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
• CPC Class Codes: H04L 41/28 Restricting access to network management systems or functions, e.g. using authorisation function to access network configuration
• CPC Class Codes: H04L 41/40 using virtualisation of network functions or resources, e.g. SDN or NFV entities
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

A method, non-transitory computer readable medium and storage controller computing device that receives a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation. A determination is made when configuration settings for the storage virtual machine are locked. The configuration change operation is applied to the configuration settings for the storage virtual machine when the determining indicates the configuration settings for the storage virtual machine are not locked. A failure message is sent in response to the configuration change request when the configuration settings for the storage virtual machine are determined to be locked.

Claims

1. A method for managing storage virtual machine configuration changes in a distributed storage system, the method comprising:

receiving, by a storage controller computing device, a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation;

determining, by the storage controller computing device, when configuration settings for the storage virtual machine are locked; and

applying, by the storage controller computing device, the configuration change operation to the configuration settings for the storage virtual machine, when the determining indicates the configuration settings for the storage virtual machine are not locked.

2. The method of claim 1, wherein the determining further comprises determining when a flag associated with the storage virtual machine is set, the flag indicating that the configuration settings for the storage virtual machine are locked, and the method further comprises:

setting, by the storage controller computing device, the flag associated with the storage virtual machine in response to receiving a lock request identifying the storage virtual machine; and

resetting, by the storage controller computing device, the flag associated with the storage virtual machine in response to receiving an unlock request identifying the storage virtual machine.

3. The method of claim 1, further comprising sending, by the storage controller computing device, a failure message in response to the configuration change request, when the determining indicates the configuration settings for the storage virtual machine are locked.

4. The method of claim 2, wherein the lock request is a request to capture a snapshot of the configuration settings for the storage virtual machine and the further comprises:

storing, by the storage controller computing device, the configuration change operation, when the flag associated with the storage virtual machine is determined to be set;

determining, by the storage controller computing device, when the snapshot capture has been completed; and

resetting, by the storage controller computing device, the flag associated with the storage virtual machine, retrieving the configuration change operation, and only applying the configuration change operation to the configuration settings for the storage virtual machine, when the determining indicates the snapshot capture is completed.

5. The method of claim 2, wherein the lock and unlock requests each further identify a subset of the configuration settings for the storage virtual machine, the setting further comprises storing an indication of the subset of the configuration settings, and the resetting further comprises removing the indication of the subset of the configuration settings.

6. The method of claim 5, wherein the determining further comprises determining when the indication of the subset of the configuration settings corresponds with a type of the configuration change operation and applying the configuration change operation to the configuration settings for the storage virtual machine, when the indication of the subset of the configuration settings is determined not to correspond with the type of the configuration change operation.

7. A storage controller computing device, comprising:

a processor coupled to a memory and configured to execute programmed instructions stored in the memory to perform steps comprising;

receiving a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation;

determining when configuration settings for the storage virtual machine are locked; and

applying the configuration change operation to the configuration settings for the storage virtual machine, when the determining indicates the configuration settings for the storage virtual machine are not locked.

8. The device of claim 7, wherein the determining further comprises determining when a flag associated with the storage virtual machine is set, the flag indicating that the configuration settings for the storage virtual machine are locked, and the processor is further configured to execute programmed instructions stored in the memory to perform steps further comprising:

setting the flag associated with the storage virtual machine in response to receiving a lock request identifying the storage virtual machine; and

resetting the flag associated with the storage virtual machine in response to receiving an unlock request identifying the storage virtual machine.

9. The device of claim 7, wherein the processor is further configured to execute programmed instructions stored in the memory to perform steps further comprising sending a failure message in response to the configuration change request, when the determining indicates the configuration settings for the storage virtual machine are locked.

10. The device of claim 7, wherein the lock request is a request to capture a snapshot of the configuration settings for the storage virtual machine and the processor is further configured to execute programmed instructions stored in the memory to perform steps further comprising:

storing the configuration change operation, when the flag associated with the storage virtual machine is determined to be set;

determining when the snapshot capture has been completed; and

resetting the flag associated with the storage virtual machine, retrieving the configuration change operation, and only applying the configuration change operation to the configuration settings for the storage virtual machine, when the determining indicates the snapshot capture is completed.

11. The device of claim 8, wherein the lock and unlock requests each further identify a subset of the configuration settings for the storage virtual machine, the setting further comprises storing an indication of the subset of the configuration settings, and the resetting further comprises removing the indication of the subset of the configuration settings.

12. The device of claim 11, wherein the determining further comprises determining when the indication of the subset of the configuration settings corresponds with a type of the configuration change operation and applying the configuration change operation to the configuration settings for the storage virtual machine, when the indication of the subset of the configuration settings is determined not to correspond with the type of the configuration change operation.

16. The medium of claim 11, wherein the lock request is a request to capture a snapshot of the configuration settings for the storage virtual machine and the machine executable code when executed by the processor further causes the processor to perform steps further comprising:

storing the configuration change operation, when the flag associated with the storage virtual machine is determined to be set;

determining when the snapshot capture has been completed; and

resetting the flag associated with the storage virtual machine, retrieving the configuration change operation, and only applying the configuration change operation to the configuration settings for the storage virtual machine, when the determining indicates the snapshot capture is completed.

13. A non-transitory computer readable medium having stored thereon instructions for managing storage virtual machine configuration changes in a distributed storage system comprising machine executable code which when executed by a processor, causes the processor to perform steps comprising:

receiving a configuration change request for a storage virtual machine, the configuration change request including a configuration change operation;

determining when configuration settings for the storage virtual machine are locked; and

applying the configuration change operation to the configuration settings for the storage virtual machine, when the determining indicates the configuration settings for the storage virtual machine are not locked.

14. The medium of claim 13, wherein the determining further comprises determining when a flag associated with the storage virtual machine is set, the flag indicating that the configuration settings for the storage virtual machine are locked, and the machine executable code when executed by the processor further causes the processor to perform steps further comprising:

setting the flag associated with the storage virtual machine in response to receiving a lock request identifying the storage virtual machine; and

resetting the flag associated with the storage virtual machine in response to receiving an unlock request identifying the storage virtual machine.

15. The medium of claim 13, wherein the machine executable code when executed by the processor further causes the processor to perform steps further comprising sending a failure message in response to the configuration change request, when the determining indicates the configuration settings for the storage virtual machine are locked.

17. The medium of claim 13, wherein the lock and unlock requests each further identify a subset of the configuration settings for the storage virtual machine, the setting further comprises storing an indication of the subset of the configuration settings, and the resetting further comprises removing the indication of the subset of the configuration settings.

18. The medium of claim 17, wherein the determining further comprises determining when the indication of the subset of the configuration settings corresponds with a type of the configuration change operation and applying the configuration change operation to the configuration settings for the storage virtual machine, when the indication of the subset of the configuration settings is determined not to correspond with the type of the configuration change operation.