Policy driven storage hardware allocation

• US 10,425,352 B2
• Filed: 03/09/2015
• Issued: 09/24/2019
• Est. Priority Date: 03/09/2015
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Barzik, Zah, Chen, Lior, Keller, Michael, Matosevich, Rivka M.
• Primary Examiner(s): Trost, IV, William G
• Assistant Examiner(s): Moorad, Imran
• Application Number:
  US14/641,793
• Publication Number:
  US 20160269317A1
• Time in Patent Office: 1,660 Days
• Field of Search: 709226
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46

Abstract

Methods, computing systems and computer program products implement embodiments of the present invention that include assigning multiple storage resources to a reserve pool, and defining one or more storage policy parameters that include allocation policies and deallocation policy parameters. A software defined storage (SDS) controller is initialized by allocating, from the reserve pool, one or more of the storage resources to the SDS controller, and a current state of the SDS controller is monitored. In a first embodiment, upon detecting that the state of the SDS controller meets a given allocation policy parameter, an additional storage resource from the reserve pool is allocated from the reserve pool to the SDS controller. In a second embodiment, upon detecting that the state of the SDS controller meets a given deallocation policy parameter, a given the SDS controller is deallocated from the SDS controller and released back to the storage pool.

Claims

1. A method, comprising:

assigning multiple storage resources from multiple nodes of a computing cluster to a reserve pool, the multiple storage resources each comprising respective storage servers;

wherein the reserve pool comprises a storage pool of the multiple storage resources which is separate from currently allocated storage resources to the computing cluster;

defining one or more storage policy parameters;

initializing a software defined storage (SDS) controller, the SDS controller comprising a distinct hardware computing entity controlling the computing cluster;

allocating, from the reserve pool, one or more of the storage resources comprising one or more of the storage servers to the SDS controller;

monitoring a current state of the SDS controller; and

upon detecting that the state of the SDS controller meets a given storage policy parameter, allocating, by a computer, an additional storage resource comprising an additional storage server from the reserve pool to the SDS controller;

wherein, upon determining that no additional storage resources exist in the reserve pool, the additional storage resource is migrated to the SDS controller from an alternative SDS controller according to a priority of the given storage policy parameter with respect to the SDS controller and the alternative SDS controller.

2. The method according to claim 1, wherein each of the multiple storage resources further comprises a set of storage devices.

3. The method according to claim 1, wherein the state is selected from a list consisting of a capacity state, a capacity prediction, a performance state, a performance prediction, network performance metrics, a network performance state, a health state, a redundancy state and a reliability state.

4. The method according to claim 1, wherein the given storage parameter is selected from a list consisting of a capacity goal, a capacity quota, a reliability goal, a network performance goal and a priority weight.

5. The method according to claim 1, wherein the given storage parameter defines an availability of a given storage resource to the SDS controller.

6. The method according to claim 1, wherein the given storage policy parameter comprises a first given storage policy parameter, and comprising releasing, from the given SDS controller, a given storage resource to the storage pool upon the state of the SDS controller meeting a second storage policy parameter.

7. The method according to claim 1, wherein the computer is selected from a list consisting of a policy server and one or more of the SDS controllers.

8. A data facility, comprising:

multiple storage resources; and

a computer configured;

to assign the multiple storage resources from multiple nodes of a computing cluster to a reserve pool, the multiple storage resources each comprising respective storage servers;

wherein the reserve pool comprises a storage pool of the multiple storage resources which is separate from currently allocated storage resources to the computing cluster;

to define one or more storage policy parameters;

to initialize a software defined storage (SDS) controller, the SDS controller comprising a distinct hardware computing entity controlling the computing cluster;

to allocate, from the reserve pool, one or more of the storage resources comprising one or more of the storage servers to the SDS controller;

to monitor a current state of the SDS controller; and

upon detecting that the state of the SDS controller meets a given storage policy parameter, to allocate an additional storage resource comprising an additional storage server from the reserve pool to the SDS controller;

wherein, upon determining that no additional storage resources exist in the reserve pool, the additional storage resource is migrated to the SDS controller from an alternative SDS controller according to a priority of the given storage policy parameter with respect to the SDS controller and the alternative SDS controller.

9. The data facility according to claim 8, wherein each of the multiple storage resources further comprises a set of storage devices.

10. The data facility according to claim 8, wherein the state is selected from a list consisting of a capacity state, a capacity prediction, a performance state, a performance prediction, network performance metrics, a network performance state, a health state, a redundancy state and a reliability state.

11. The data facility according to claim 8, wherein the given storage parameter is selected from a list consisting of a capacity goal, a capacity quota, a reliability goal, a network performance goal and a priority weight.

12. The data facility according to claim 8, wherein the given storage parameter defines an availability of a given storage resource to the SDS controller.

13. The data facility according to claim 8, wherein the given storage policy parameter comprises a first given storage policy parameter, and wherein the computer is configured to release, from the given SDS controller, a given storage resource to the storage pool upon the state of the SDS controller meeting a second storage policy parameter.

14. The data facility according to claim 8, wherein the computer comprises one or more of the SDS controllers.

15. A computer program product, the computer program product comprising:

a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising;

computer readable program code configured to assign multiple storage resources from multiple nodes of a computing cluster to a reserve pool, the multiple storage resources each comprising respective storage servers;

wherein the reserve pool comprises a storage pool of the multiple storage resources which is separate from currently allocated storage resources to the computing cluster;

computer readable program code configured to define one or more storage policy parameters;

computer readable program code configured to initialize a software defined storage (SDS) controller, the SDS controller comprising a distinct hardware computing entity controlling the computing cluster;

computer readable program code configured to allocate, from the reserve pool, one or more of the storage resources comprising one or more of the storage servers to the SDS controller;

computer readable program code configured to monitor a current state of the SDS controller; and

computer readable program code configured upon detecting that the state of the SDS controller meets a given storage policy parameter, to allocate, by a computer, an additional storage resource comprising an additional storage server from the reserve pool to the SDS controller;

wherein, upon determining that no additional storage resources exist in the reserve pool, the additional storage resource is migrated to the SDS controller from an alternative SDS controller according to a priority of the given storage policy parameter with respect to the SDS controller and the alternative SDS controller.

16. The computer program product according to claim 15, wherein each of the multiple storage resources further comprises a set of storage devices.

17. The computer program product according to claim 15, wherein the state is selected from a list consisting of a capacity state, a capacity prediction, a performance state, a performance prediction, network performance metrics, a network performance state, a health state, a redundancy state and a reliability state.

18. The computer program product according to claim 15, wherein the given storage parameter is selected from a list consisting of a capacity goal, a capacity quota, a reliability goal, a network performance goal and a priority weight.

19. The computer program product according to claim 15, wherein the given storage parameter defines an availability of a given storage resource to the SDS controller.

20. The computer program product according to claim 15, wherein the given storage policy parameter comprises a first given storage policy parameter, and comprising computer readable program code configured to release, from the given SDS controller, a given storage resource to the storage pool upon the state of the SDS controller meeting a second storage policy parameter.