Deploying data-path-related plug-ins

• US 9,612,851 B2
• Filed: 01/19/2014
• Issued: 04/04/2017
• Est. Priority Date: 03/21/2013
• Status: Active Grant

• Current Assignee: StorONE, Ltd.
• Original Assignee: StorONE, Ltd.
• Inventors: Gordon, Raz
• Primary Examiner(s): Dao, Thuy
• Assistant Examiner(s): Chowdhury, Ziaul A
• Application Number:
  US14/774,007
• Publication Number:
  US 20160026481A1
• Time in Patent Office: 1,171 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 said data-path-related plug-in for said logical storage entity, wherein said deploying includes creating a plug-in inclusive data-path specification and wherein said plug-in inclusive data-path specification includes operation of the data-path-related plug-in;

creating a verification data-path specification, wherein said 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 said verification data-path specification, generates verification data that enables validation of given data generated by said task being executed in a plug-in inclusive data-path having said plug-in inclusive data-path specification;

executing a given task on said plug-in inclusive data-path and on said verification data-path, giving rise to said given data and to said verification data;

verifying said given data using said verification data; and

if said verifying failed, performing one or more failure actions, wherein said one or more failure actions include one or more of the following actions;

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

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

(c) utilizing the verification data for correcting the given data;

(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 with failed verification if any previous version exists;

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

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, further comprising:

checking if said deploying will not result in a breach of a Service Level Specification (SLS) associated with the logical storage entity and wherein said deploying and said creating are performed if said checking indicated that said deploying will not result in the breach of said SLS.

4. The method of claim 1, wherein said verifying is successful if said verification data contains identical information to information contained in said given data.

5. The method of claim 4, wherein said verifying is successful if said verification data and said given data are identical.

6. The method of claim 1, further comprising:

if a validation of a non-validated data-path-related plug-in is complete, removing the verification data-path and performing one or more validation actions.

7. The method of claim 6, wherein said one or more validation actions include one or more of the following actions:

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

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

8. The method of claim 3, wherein said storage system is a distributed storage system and wherein if said checking indicated that said deploying will result in a breach of said 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 said at least one SLS, storage-related resources parameters data relating to storage related resources connected to an infrastructure layer of said distributed storage system, and dynamic behavior parameters data; and

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

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

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

create a verification data-path specification, wherein said 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 said verification data-path specification, generates verification data that enables validation of given data generated by said task being executed in a plug-in inclusive data-path having said plug-in inclusive data-path specification;

execute a given task on said plug-in inclusive data-path and on said verification data-path, giving rise to said given data and to said verification data;

verify said given data using said verification data; and

if said verifying failed, perform one or more failure actions, wherein said one or more failure actions include one or more of the following actions;

(a) remove the data-path-related plug-in with failed verification from the logical storage entity;

(b) disable the data-path-related plug-in with failed verification for the logical storage entity;

(c) utilize the verification data for correcting the given data;

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

(e) revert to a previous version of the data-path-related plug-in with failed verification if any previous version exists;

(f) reduce a grade associated with the data-path-related plug-in with failed verification.

10. The system 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 system of claim 9, wherein said UDSP agent is further configured to check if said deploying will not result in a breach of a Service Level Specification (SLS) associated with the logical storage entity and wherein said deploying and said creating are performed if said check indicated that said deploying will not result in a breach of said SLS.

12. The system of claim 9, wherein said verifying is successful if said verification data contains identical information to information contained in said given data.

13. The system of claim 12, wherein said verifying is successful if said verification data and said given data are identical.

14. The system of claim 9, wherein if a validation of a non-validated data-path-related plug-in is complete, said UDSP agent is further configured to remove the verification data-path and perform one or more validation actions.

15. The system of claim 14, wherein said one or more validation actions include one or more of the following actions:

(a) increase a grade associated with the non-validated data-path-related plug-in;

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

16. The system of claim 11, wherein said storage system is a distributed storage system and wherein, if said checking indicated that said deploying will result in a breach of said SLS, said UDSP agent is further configured to:

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

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

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

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

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

creating a verification data-path specification, wherein said 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 said verification data-path specification, generates verification data that enables validation of given data generated by said task being executed in a plug-in inclusive data-path having said plug-in inclusive data-path specification;

executing a given task on said plug-in inclusive data-path and on said verification data-path, giving rise to said given data and to said verification data;

verifying said given data using said verification data; and

if said verifying failed, performing one or more failure actions, wherein said one or more failure actions include one or more of the following actions;

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

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

(c) utilizing the verification data for correcting the given data;

(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 with failed verification if any previous version exists;

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