System and method for deploying a data-path-related plug-in for a logical storage entity of a storage system

• US 10,169,021 B2
• Filed: 02/21/2017
• Issued: 01/01/2019
• Est. Priority Date: 03/21/2013
• Status: Active Grant

• Current Assignee: StorONE, Ltd.
• Original Assignee: StorONE, Ltd.
• Inventors: Gordon, Raz
• Primary Examiner(s): Chowdhury, Ziaul A
• Application Number:
  US15/438,373
• Publication Number:
  US 20170161045A1
• Time in Patent Office: 679 Days
• CPC Class Codes: G06F 11/0709 in a distributed system consisting of a plurality of standalone computer nodes, e.g. clusters, client-server systems
• CPC Class Codes: G06F 11/0727 in a storage system, e.g. in a DASD or network based storage system drivers for digital recording or reproducing units G06F3/06; circuits for error detection or correction within digital recording or reproducing units G11B20/18; 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], H04L67/1097
• CPC Class Codes: G06F 11/0751 Error or fault detection not based on redundancy power supply failures G06F1/30; network fault management H04L41/06
• CPC Class Codes: G06F 11/0793 Remedial or corrective actions recovery from an exception in an instruction pipeline G06F9/3861; by retry G06F11/1402; for recovering from a failure of a protocol instance or entity H04L69/40
• CPC Class Codes: G06F 11/1446 Point-in-time backing up or restoration of persistent data
• CPC Class Codes: G06F 11/3409 for performance assessment
• CPC Class Codes: G06F 2201/81 Threshold
• CPC Class Codes: G06F 8/60 Software deployment
• CPC Class Codes: G06F 9/44526 Plug-ins; Add-ons
• CPC Class Codes: H04L 41/0823 characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for optimising operational conditions of wireless networks H04W24/02

Abstract

A method for deploying a data-path-related plug-in for a logical storage entity of a storage system, the method comprising: deploying the data-path-related plug-in for the logical storage entity, wherein the deploying includes creating a plug-in inclusive data-path specification and wherein the plug-in inclusive data-path specification includes operation of the data-path-related plug-in; and creating a verification data path specification, wherein the verification data-path specification does not include operation of the data-path-related plug-in and wherein a task executed in a verification data path, having the verification data-path specification, generates verification data that enables validation of given data generated by the task being executed in a plug-in inclusive data-path having the plug-in inclusive data-path specification.

Claims

1. A method for deploying a data-path-related plug-in for a logical storage entity of a storage system, the method comprising:

deploying the data-path-related plug-in for the logical storage entity, wherein the deploying includes creating a plug-in inclusive data-path specification and wherein the plug-in inclusive data-path specification includes operation of the data-path-related plug-in;

creating a verification data path specification, wherein the verification data-path specification does not include operation of the data-path-related plug-in;

executing a related to the data-path-related plug-in task on a data-path defined by the plug-in inclusive data-path specification to yield a first execution result;

executing the task on a data-path defined by the verification data-path specification to yield a second execution result;

verifying the first execution result using the second execution result thereby validating the task execution;

if any discrepancy exists between the first execution result and the second execution result, performing one or more failure actions; and

removing the verification data-path and performing one or more validation actions when a validation of the data-path-related plug-in is complete, wherein the one or more validation actions include one or more of the following actions;

(a) increasing a grade associated with the data-path-related plug-in; and

(b) issuing a notification indicating that the validation is complete to a user of the logical storage entity.

2. The method of claim 1, wherein the data-path-related plug-in is selected from a list of data-path-related plug-ins stored in a plug-in pool associated with the storage system.

3. The method of claim 1, wherein the validating is successful when the first execution result and the second execution result contain identical information.

4. The method of claim 1, wherein the validating is successful when the first execution result and the second execution result are identical.

5. The method of claim 1, wherein the one or more failure actions include one or more of the following actions:

(a) removing the data-path-related plug-in from the logical storage entity;

(b) disabling the data-path-related plug-in for the logical storage entity;

(c) utilizing the second execution result verification data for correcting the first execution result;

(d) issuing a notification indicative of a failure to a user of the logical storage entity;

(e) reverting to a previous version of the data-path-related plug-in; and

(f) reducing a grade associated with the non-validated data-path-related plug-in.

6. The method of claim 1, wherein the validation of the data-path-related plug-in is complete upon successfully validating a predefined number of tasks related to the data-path-related plug-in.

7. The method of claim 1, further comprising checking, prior to the deploying and the creating, if the deploying results in breaching a Service Level Specification (SLS) associated with the logical storage entity, and performing the deploying and the creating when the checking is indicative that the deploying will not result in breaching the SLS.

8. The method of claim 7, wherein

the storage system, is a distributed storage system, and

when the checking is indicative that the deploying results in breaching the SLS, the method further comprises:

receiving dynamic behavior parameters data relating to dynamic behavior of the distributed storage system;

calculating a reconfiguration for the distributed storage system, based at least on the SLS, storage-related resources parameters data relating to storage related resources connected to an infrastructure layer of the distributed storage system, and dynamic behavior parameters data; and

automatically allocating at least part of one of the storage-related resources according to the calculated reconfiguration.

9. A computer node comprising at least one central processing unit (CPU) configured to execute a Unified Distributed Storage Platform (UDSP) agent, wherein the UDSP agent is configured to:

deploy the data-path-related plug-in for a logical storage entity, wherein the deploying includes creating a plug-in inclusive data-path specification and wherein the plug-in inclusive data-path specification includes operation of the data-path-related plug-in;

create a verification data path specification, wherein the verification data-path specification does not include operation of the data-path-related plug-in;

execute a related to the data-path-related plug-in task on a data-path defined by the plug-in inclusive data-path specification to yield a first execution result;

execute the task on a data-path defined by the verification data-path specification to yield a second execution result;

verify the first execution result using the second execution result thereby validating the task execution;

if any discrepancy exists between the first execution result and the second execution result, perform one or more failure actions; and

remove the verification data-path and performing one or more validation actions when a validation of the data-path-related plug-in is complete, wherein the one or more validation actions include one or more of the following actions;

(a) increasing a grade associated with the data-path-related plug-in; and

(b) issuing a notification indicating that the validation is complete to a user of the logical storage entity.

10. The computer node of claim 9, wherein the data-path-related plug-in is selected from a list of data-path-related plug-ins stored in a plug-in pool associated with the storage system.

11. The computer node of claim 9, wherein the validating is successful when the first execution result and the second execution result contain identical information.

12. The computer node of claim 9, wherein the validating is successful when the first execution result and the second execution result are identical.

13. The computer node of claim 9, wherein the one or more failure actions include one or more of the following actions:

(g) removing the data-path-related plug-in from the logical storage entity;

(h) disabling the data-path-related plug-in for the logical storage entity;

(i) utilizing the second execution result verification data for correcting the first execution result;

(j) issuing a notification indicative of a failure to a user of the logical storage entity;

(k) reverting to a previous version of the data-path-related plug-in; and

(l) reducing a grade associated with the non-validated data-path-related plug-in.

14. The computer node of claim 9, wherein the validation of the data-path-related plug-in is complete upon successfully validating a predefined number of tasks related to the data-path-related plug-in.

15. The computer node of claim 9, wherein the UDSP agent is further configured to check, prior to the deploy and the create, if the deploy results in breaching a Service Level Specification (SLS) associated with the logical storage entity, and perform the deploy and the create when the check is indicative that the deploy will not result in breaching the SLS.

16. A non-transitory computer readable medium comprising computer program instructions that, when executed by a computer, cause the computer to perform a method for deploying a data-path-related plug-in for a logical storage entity of a storage system, the comprising the steps of:

deploying the data-path-related plug-in for the logical storage entity, wherein the deploying includes creating a plug-in inclusive data-path specification and wherein the plug-in inclusive data-path specification includes operation of the data-path-related plug-in;

creating a verification data path specification, wherein the verification data-path specification does not include operation of the data-path-related plug-in;

executing a related to the data-path-related plug-in task on a data-path defined by the plug-in inclusive data-path specification to yield a first execution result;

executing the task on a data-path defined by the verification data-path specification to yield a second execution result;

verifying the first execution result using the second execution result thereby validating the task execution;

if any discrepancy exists between the first execution result and the second execution result, performing one or more failure actions; and

removing the verification data-path and performing one or more validation actions when a validation of the data-path-related plug-in is complete, wherein the one or more validation actions include one or more of the following actions;

(a) increasing a grade associated with the data-path-related plug-in; and

(b) issuing a notification indicating that the validation is complete to a user of the logical storage entity.