Resource provisioning based on logical profiles and objective functions

• US 9,569,268 B2
• Filed: 09/09/2013
• Issued: 02/14/2017
• Est. Priority Date: 09/09/2013
• Status: Active Grant

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Inventors: Alexeev, Sergey Alexandrovich, Polkovnikov, Alexey Alexandrovich, Burmak, Alexander Yurievich
• Primary Examiner(s): DORAIS, CRAIG C
• Application Number:
  US14/347,729
• Publication Number:
  US 20150269000A1
• Time in Patent Office: 1,254 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0605 by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0631 by allocating resources to storage systems
• CPC Class Codes: G06F 3/0673 Single storage device
• CPC Class Codes: G06F 3/0685 Hybrid storage combining heterogeneous device types, e.g. hierarchical storage, hybrid arrays
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD
• CPC Class Codes: G06F 9/5016 the resource being the memory

Abstract

Described are techniques for selecting resources for provisioning. A usage definition, including an objective function, and first set of logical profiles based on core criteria are selected. Each of the logical profiles in the first set represents a resource set characterized by a core criteria value set that specifies values for the core criteria. A second set of resulting objective function values are determined by evaluating the objective function for each of the logical profiles in the first set. A highest ranked one of the resulting objective function values in the second set is selected having a corresponding first logical profile of the first set and a corresponding core criteria value set. A third set of resources is selected which is characterized by the corresponding core criteria value set for the first logical profile. The third set of resources is any of recommended or selected for provisioning.

Claims

1. A method of selecting resources for provisioning comprising:

receiving a request to provision storage from physical storage devices for a logical device, the physical storage devices being configured into a plurality of RAID (redundant array of independent disks) groups, wherein each of the physical storage devices is characterized by one of a plurality of drive technologies or physical storage device types, each of the plurality of RAID groups having an associated RAID protection level and stripe length;

selecting a usage definition and a first set of one or more logical profiles based on core criteria including a physical storage device type or technology, a RAID level and a stripe length, wherein said usage definition includes an objective function characterizing usage of the logical device and wherein each of the logical profiles in the first set represents a resource set of one or more of the physical storage devices characterized by a core criteria value set that specifies values for the core criteria and thereby indicate a physical storage device type or drive technology, a RAID level and a stripe length for the resource set;

determining a second set of resulting objective function values by evaluating the objective function for each of the logical profiles in the first set, wherein each logical profile in the first set has a different corresponding resulting objective function value in the second set;

selecting a highest ranked one of the resulting objective function values in the second set, wherein the highest ranked one of the resulting objective function values in the second set has a corresponding first logical profile of the first set and a corresponding core criteria value set providing values for the core criteria; and

determining a third set of one or more of the physical storage devices characterized by the corresponding core criteria value set for the first logical profile, wherein the third set of one or more of the physical storage devices is any of recommended or selected for provisioning storage for the logical device.

2. The method of claim 1, wherein said selecting further includes:

ranking the second set of resulting objective function values in any of ascending or descending order.

3. The method of claim 2, wherein each of the logical profiles in the first set represents a resource set of one or more physical storage devices characterized by a different core criteria value set.

4. The method of claim 3, wherein each of the logical profiles in the first set represents a resource set of one or more physical storage devices characterized by the different core criteria value set providing values that indicate a physical storage device type or drive technology, a RAID level and a stripe length.

5. The method of claim 1, further comprising:

obtaining one or more additional criteria and one or more additional logical profiles, each of the one or more additional logical profiles corresponding to any of a resource characteristic or feature included in the one or more additional criteria;

determining a resulting objective function value for each of the one or more additional logical profiles; and

determining whether to enable or disable, with respect to said third set of one or more physical storage devices, each resource characteristic or feature specified in said one or more additional criteria in accordance with the one or more resulting objective function values determined for the one or more additional logical profiles.

6. The method of claim 5, wherein the one or more additional criteria include any of data deduplication, thin device provisioning, compression, backup, and self encryption.

7. The method of claim 1, wherein each of the logical profiles in the first set specifies one or more rates used in evaluating said objective function and used in generating a resulting objective function value for said each logical profile.

8. The method of claim 7, wherein said one or more rates include any of:

at least one performance rate, a cost rate, a capacity rate, a security rate, and a fault tolerance rate.

9. The method of claim 8, wherein the at least one performance rate includes a plurality of performance rates for read and write operations.

10. The method of claim 8, wherein the at least one performance rate includes a read rate, a sequential write access rate, and a random write access rate.

11. The method of claim 1, wherein the objective function is expressed as a mathematical equation including a plurality of factors associated with a plurality of parameters, each of the plurality of factors being associated with a different one of the plurality of parameters, said each factor denoting a weight or level of importance of said different one of the plurality of parameters associated with said each factor.

12. The method of claim 11, wherein each of the logical profiles in the first set specifies a plurality of parameter values for the plurality of parameters thereby specifying a different one of the plurality of parameter values for each of the plurality of parameters.

13. The method of claim 1, wherein said usage definition characterizes usage for any of an application, policy, service level agreement, and business use-case.

14. The method of claim 13, wherein said usage definition specifies usage requirements or targets related to any of performance, cost, capacity, security, and fault tolerance.

15. The method of claim 14, wherein the usage requirements include any of a numeric value and one of a plurality of predefined service levels.

16. The method of claim 13, wherein the application is any of an electronic mail server application, a database, software providing a virtualized environment for one or more applications, a real time application, and a transaction processing application.

17. A data storage system comprising:

a plurality of physical storage devices configured into a plurality of RAID (redundant array of independent disks) groups, wherein each of said plurality of physical storage devices is characterized by one of a plurality of drive technologies or physical storage device types, each of the plurality of RAID groups having an associated RAID protection level and stripe length; and

a memory comprising code stored thereon wherein said code, when executed by a processor, performs processing including;

receiving a request to provision storage from the plurality of physical storage devices for a logical device;

selecting a usage definition corresponding to said request, said usage definition including an objective function characterizing usage of the logical device;

selecting a first set of one or more logical profiles whereby each of the logical profiles in the first set is based on core criteria including a physical storage device type or technology, a RAID level and a stripe length, wherein each of the logical profiles in the first set represents a resource set of one or more of the plurality of physical storage devices characterized by a core criteria value set that specifies values for the core criteria and thereby indicate a physical storage device type or drive technology, a RAID level and a stripe length for the resource set;

determining a second set of resulting objective function values by evaluating the objective function for each of the logical profiles in the first set, wherein each logical profile in the first set has a different corresponding resulting objective function value in the second set;

selecting a highest ranked one of the resulting objective function values in the second set, wherein the highest ranked one of the resulting objective function values in the second set has a corresponding first logical profile of the first set and a corresponding core criteria value set providing one or more values for the one or more core criteria; and

determining a third set of one or more of the plurality of physical storage devices characterized by the corresponding core criteria value set, wherein the third set of one or more of the plurality of physical storage devices is any of recommended or selected for provisioning.

18. The data storage system of claim 17, wherein each of the logical profiles in the first set specifies one or more rates used in evaluating said objective function and used in generating a resulting objective function value for said each logical profile.

19. The data storage system of claim 18, wherein said one or more rates include any of at least one performance rate, a cost rate, a capacity rate, a security rate, and a fault tolerance rate and wherein said objective function includes one or more parameters and corresponding one or more factors, each of said one or more rates of said each logical profile in the first set specifying a value for one of the one or more parameters.

20. A computer readable medium comprising code stored thereon that, when executed, performs a method of selecting resources for provisioning comprising:

receiving a request to provision storage from physical storage devices for a logical device, the physical storage devices being configured into a plurality of RAID (redundant array of independent disks) groups, wherein each of the physical storage devices is characterized by one of a plurality of drive technologies or physical storage device types, each of the plurality of RAID groups having an associated RAID protection level and stripe length;

selecting a usage definition and a first set of one or more logical profiles based on core criteria including a physical storage device type or technology, a RAID level and a stripe length, wherein said usage definition includes an objective function characterizing usage of the logical device and wherein each of the logical profiles in the first set represents a resource set of one or more of the physical storage devices characterized by a core criteria value set that specifies values for the core criteria and thereby indicate a physical storage device type or drive technology, a RAID level and a stripe length for the resource set;

determining a second set of resulting objective function values by evaluating the objective function for each of the logical profiles in the first set, wherein each logical profile in the first set has a different corresponding resulting objective function value in the second set;

selecting a highest ranked one of the resulting objective function values in the second set, wherein the highest ranked one of the resulting objective function values in the second set has a corresponding first logical profile of the first set and a corresponding core criteria value set providing values for the core criteria; and

determining a third set of one or more of the physical storage devices characterized by the corresponding core criteria value set for the first logical profile, wherein the third set of one or more of the physical storage devices is any of recommended or selected for provisioning storage for the logical device.