STORAGE PERFORMANCE-BASED VIRTUAL MACHINE PLACEMENT

• US 20130346615A1
• Filed: 06/26/2012
• Published: 12/26/2013
• Est. Priority Date: 06/26/2012
• Status: Active Grant

• Current Assignee: Vmware LLC (Broadcom, Inc.)
• Original Assignee: VMware, Inc. (Broadcom, Inc.)
• Inventors: Gondi, Anjaneya Prasad
• Granted Patent: US 10,387,201 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: G06F 9/5016 the resource being the memory
• CPC Class Codes: G06F 9/5077 Logical partitioning of resources; Management or configuration of virtualized resources specific details on emulation or internal functioning of virtual machines G06F9/455

Abstract

In one embodiment, a method includes receiving, by a computer system, one or more storage performance requirements for a virtual machine. The method further includes searching, by the computer system, for a host and an associated datastore that exhibits a level of storage performance satisfying the one or more storage performance requirements. If the searching is successful, the computer system places the virtual machine on the identified host and datastore.

Claims

1. A method performed by a virtual infrastructure management server (VIMS) for placing virtual machines in a virtualized system environment, the method comprising:

receiving, by the VIMS, one or more storage performance requirements for a virtual machine;

searching, by the VIMS, for a first host and a first datastore in the virtualized system environment that exhibits a level of storage performance satisfying the one or more storage performance requirements; and

if the searching is successful, placing, by the VIMS, the virtual machine on the first host and the first datastore.

2. The method of claim 1 further comprising:

receiving, from each host in a plurality of hosts, one or more storage performance metrics for each datastore that is mounted by the host.

3. The method of claim 2 wherein the one or more storage performance metrics include I/O operations per second (IOPs).

4. The method of claim 3 wherein the one or more storage performance metrics further include I/O latency.

5. The method of claim 2 further comprising:

storing the received storage performance metrics as entries in a database, each entry specifying a host/datastore combination and the one or more storage performance metrics for the host/datastore combination.

6. The method of claim 5 wherein searching for the first host and the first datastore comprises comparing the one or more storage performance requirements against the entries in the database.

7. The method of claim 1 wherein the virtual machine was originally placed on a second host and a second datastore in the virtualized system environment, and wherein placing the virtual machine on the first host and the first datastore comprises moving the virtual machine from the second host and the second datastore to the first host and the first datastore.

8. The method of claim 1 further comprising:

if the search is not successful;

identifying a second host and a second datastore in the virtualized system environment that is closest to satisfying the one or more storage performance requirements; and

placing the virtual machine on the second host and the second datastore.

9. The method of claim 8 further comprising:

after placing the virtual machine on the second host and the second datastore, continuing to search for a first host and a first datastore in the virtualized system environment that satisfies the one or more storage performance requirements.

10. The method of claim 9 further comprising, upon finding the first host and the first datastore after placing the virtual machine on the second host and the second datastore:

if the first host is identical to the second host and the first datastore is different from the second datastore, moving the virtual machine from the second datastore to the first datastore while maintaining the virtual machine on the second host.

11. The method of claim 9 further comprising, upon finding the first host and the first datastore after placing the virtual machine on the second host and the second datastore:

if the first host is different from the second host and the first datastore is identical to the second datastore, moving the virtual machine from the second host to the first host while maintaining the virtual machine on the second datastore.

12. The method of claim 9 further comprising, upon finding the first host and the first datastore after placing the virtual machine on the second host and the second datastore:

if the first host is different from the second host and the first datastore is different from the second datastore;

moving the virtual machine from the second host to the first host; and

moving the virtual machine from the second datastore to the first datastore.

13. A non-transitory computer readable storage medium having stored thereon program code executable by a VIMS for placing virtual machines in a virtualized system environment, the program code comprising:

code that causes the VIMS to receive one or more storage performance requirements for a virtual machine;

code that causes the VIMS to search for a first host and a first datastore in the virtualized system environment that exhibits a level of storage performance satisfying the one or more storage performance requirements; and

if the searching is successful, code that causes the VIMS to place the virtual machine on the first host and the first datastore.

14. The non-transitory computer readable storage medium of claim 13 wherein the program code further comprises:

code that causes the VIMS to receive, from each host in a plurality of hosts, storage performance metrics for each datastore that is mounted by the host, the storage performance metrics including IOPs and I/O latency.

15. The non-transitory computer readable storage medium of claim 13 wherein the code that causes the VIMS to place the virtual machine on the first host and the first datastore comprises code that causes the VIMS to deploy the virtual machine on the first host and the first datastore.

16. The non-transitory computer readable storage medium of claim 13 wherein the virtual machine was originally placed on a second host and a second datastore in the virtualized system environment, and wherein the code that causes the computer system to place the virtual machine on the first host and the first datastore comprises:

if the first host is identical to the second host and the first datastore is different from the second datastore, code that causes the computer system to move the virtual machine from the second datastore to the first datastore while maintaining the virtual machine on the second host;

if the first host is different from the second host and the first datastore is identical to the second datastore, code that causes the computer system to move the virtual machine from the second host to the first host while maintaining the virtual machine on the second datastore; and

if the first host is different from the second host and the first datastore is different from the second datastore;

code that causes the computer system to move the virtual machine from the second host to the first host; and

code that causes the computer system to move the virtual machine from the second datastore to the first datastore.

17. A computer system operable for placing virtual machines in a virtualized system environment, the computer system comprising:

a processor configured to;

receive one or more storage performance requirements for a virtual machine;

search for a first host and a first datastore in the virtualized system environment that exhibits a level of storage performance satisfying the one or more storage performance requirements; and

if the searching is successful, place the virtual machine on the first host and the first datastore.

18. The computer system of claim 17 wherein the processor is further configured to receive, from each host in a plurality of hosts, storage performance metrics for each datastore that is mounted by the host, the storage performance metrics including IOPs and I/O latency.

19. The computer system of claim 17 wherein placing the virtual machine on the first host and the first datastore comprises deploying the virtual machine on the first host and the first datastore.

20. The computer system of claim 17 wherein the virtual machine was originally placed on a second host and a second datastore in the virtualized system environment, and wherein placing the virtual machine on the first host and the first datastore comprises:

if the first host is identical to the second host and the first datastore is different from the second datastore, moving the virtual machine from the second datastore to the first datastore while maintaining the virtual machine on the second host;

if the first host is different from the second host and the first datastore is identical to the second datastore, moving the virtual machine from the second host to the first host while maintaining the virtual machine on the second datastore; and

if the first host is different from the second host and the first datastore is different from the second datastore;

moving the virtual machine from the second host to the first host; and

moving the virtual machine from the second datastore to the first datastore.