Systems and methods for automating and tuning storage allocations

• US 8,555,021 B1
• Filed: 09/29/2006
• Issued: 10/08/2013
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: EMC Corporation (Dell Technologies Inc.)
• Inventors: Barturen, Txomin
• Primary Examiner(s): BATAILLE, PIERRE MICHE
• Application Number:
  US11/536,850
• Time in Patent Office: 2,566 Days
• Field of Search: 711/170, 711/156, 711/114, 711/202, 711/E12.001
• US Class Current: 711/170
• CPC Class Codes: G06F 3/061 Improving I/O performance
• CPC Class Codes: G06F 3/0617 in relation to availability
• CPC Class Codes: G06F 3/0631 by allocating resources to storage systems
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD

Abstract

Methods and systems are disclosed that relate to identifying an appropriate logical unit for a requested application storage allocation. An exemplary method includes receiving a request for storage allocation comprising a plurality of storage attributes including capacity and at least one performance and/or availability criterion. The method further includes identifying a logical unit having at least one designated storage characteristic that satisfies the at least one criterion and having an available storage space that satisfies the capacity and allocating at least a portion of the identified logical unit for storage associated with the request.

Claims

1. A method for selecting a logical unit for a requested application storage allocation, comprising:

receiving a request for storage allocation having a plurality of storage attributes including a capacity and at least one criterion selected from the group consisting of performance and availability criteria;

identifying whether a first existing logical unit in a storage array exists having at least one designated storage characteristic that satisfies the at least one criterion and having an available storage space that satisfies the capacity;

where the first existing logical unit does not exist, identifying a second existing logical unit in the storage array that has the available storage space that satisfies the capacity and is modifiable to satisfy the at least one criterion, and modifying the second existing local unit to satisfy the at least one criterion; and

allocating at least a portion of the identified first or second existing logical unit for storage associated with the request.

2. The method of claim 1 further comprising:

associating the at least one criterion with the allocated logical unit.

3. The method of claim 2 further comprising:

checking the allocated logical unit to confirm that its actual storage characteristics satisfy the at least one criterion.

4. The method of claim 3 further comprising:

if the allocated logical unit does not satisfy the at least one criterion, adjusting the designated storage characteristics of the allocated logical unit.

5. The method of claim 1 wherein the availability criterion are selected from the group consisting of uptime, recovery time, and recovery point.

6. The method of claim 1 wherein the availability criterion are selected from the group consisting of ability to support replication and RAID level.

7. The method of claim 1, wherein the request for storage allocation is generated according to a first requesting application, wherein the first existing logical unit and the second existing logical unit include non-available storage space already being used for storage in connection with storage allocation for a second requesting application.

8. A method for enabling identification of a logical unit in a storage array for an application storage allocation, comprising:

enabling an identification of a capacity for the storage allocation;

enabling a selection of at least one criterion from the group consisting of performance and availability criteria;

creating a request for storage allocation of an existing logical unit, the request having a plurality of storage attributes including the capacity and the at least one criterion;

identifying whether a first existing logical unit in the storage array exists having at least one designated storage characteristic that satisfies the at least one criterion and having an available storage space that satisfies the capacity; and

where the first existing logical unit does not exist, identifying a second existing logical unit in the storage array that has the available storage space that satisfies the capacity and is modifiable to satisfy the at least one criterion, and modifying the second existing local unit to satisfy the at least one criterion.

9. The method of claim 8 further comprising:

transmitting the request for storage allocation.

10. The method of claim 8 further comprising:

identifying the capacity for storage allocation by specifying a numerical value.

11. The method of claim 8, wherein the request for storage allocation is generated according to a first requesting application, wherein the first existing logical unit and the second existing logical unit include non-available storage space already being used for storage in connection with storage allocation for a second requesting application.

12. A non-transitory computer usable medium storing computer readable program code having a program for selecting a logical unit for a requested application storage allocation comprising:

computer readable program code for receiving a request for storage allocation having a plurality of storage attributes including a capacity and at least one criterion selected from the group consisting of performance and availability criteria;

computer readable program code for identifying whether a first existing logical unit in a storage array exists having at least one designated storage characteristics that satisfies the at least one criterion and having an available storage space that satisfies the capacity; and

computer readable program code for, where the first existing logical unit does not exist, identifying a second existing logical unit in the storage array that has the available storage space that satisfies the capacity and is modifiable to satisfy the at least one criterion, and modifying the second existing local unit to satisfy the at least one criterion; and

computer readable program code for allocating at least a portion of the identified first or second existing logical unit for storage associated with the request.

13. The non-transitory computer usable medium of claim 12 further comprising:

computer readable program code associating the at least one criterion with the allocated logical unit.

14. The non-transitory computer usable medium of claim 13 further comprising:

computer readable program code for monitoring the allocated logical unit to confirm that its actual storage characteristic satisfy the at least one criterion.

15. The non-transitory computer usable medium of claim 14 further comprising:

computer readable program code for adjusting the at least one designated storage characteristic of the allocated logical unit if the actual storage characteristic does not meet the at least one criterion.

16. The non-transitory computer usable medium of claim 13 further comprising:

computer readable program code for modifying the at least one criterion associated with the allocated logical unit.

17. The non-transitory computer usable medium of claim 16 further comprising:

if the allocated logical unit does not satisfy the at least one criterion, adjusting the at least one designated storage characteristics of the allocated logical unit.

18. The non-transitory computer usable medium of claim 12, wherein the request for storage allocation is created according to a first requesting application, wherein the first existing logical unit and the second existing logical unit include non-available storage space already being used for storage in connection with storage allocation for a second requesting application.