Resource allocation/de-allocation and activation/deactivation

• US 9,405,581 B2
• Filed: 09/08/2014
• Issued: 08/02/2016
• Est. Priority Date: 09/08/2014
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Banzhaf, Gerhard, Jenks, James M., Nunez Mencias, Angel, Weinmann, Eric A.
• Primary Examiner(s): Dao, Thuy
• Assistant Examiner(s): FRANCO, CHRISTOPHER J
• Application Number:
  US14/479,430
• Publication Number:
  US 20160070586A1
• Time in Patent Office: 694 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2009/45579 I/O management, e.g. providing access to device drivers or storage
• CPC Class Codes: G06F 2009/45583 Memory management, e.g. access or allocation
• CPC Class Codes: G06F 2009/45595 Network integration; Enabling network access in virtual machine instances
• CPC Class Codes: G06F 9/45533 Hypervisors; Virtual machine monitors
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects
• CPC Class Codes: G06F 9/50 Allocation of resources, e.g. of the central processing unit [CPU]
• CPC Class Codes: G06F 9/5005 to service a request
• 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
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/781 Centralised allocation of resources

Abstract

A computer-implemented method, carried out by one or more processors, for managing resources in a server environment. In an embodiment, the method includes determining to prepare one or more virtual resources for activation of one or more allocated host resources, based, at least in part, on virtual resource definitions. The one or more allocated host resources and the one or more virtual resources are activated. Activation of the one or more virtual resources is finalized, wherein finalizing the activation includes updating the virtual resource definitions.

Claims

1. A computer program product for managing resources in a server environment, the computer program product comprising:

one or more computer readable tangible storage media and program instructions stored on at least one of the one or more storage media, the program instructions comprising;

program instructions to query a first resource consumer for a list, wherein the list includes at least a first virtual resource and a first host resource;

program instructions to query a host resource pool to determine if the first host resource is present;

program instructions to, responsive to determining the first host resource is present in the host resource pool, allocate the first host resource to the first resource consumer;

program instructions to send a request to activate the first virtual resource and the first host resource to a virtual resource provider and a host resource provider, wherein the request to activate the first virtual resource and the first host resource is performed on a single thread;

program instructions to determine to prepare one or more virtual resources for activation of one or more allocated host resources allocated host resource based at least in part on virtual resource definitions;

program instructions to activate the one or more allocated host resources;

program instructions to update the virtual resource definitions to indicate the one or more allocated host resources are activated;

program instructions to activate the one or more virtual resources;

program instructions to determine the first resource consumer is initialized;

program instructions to send a request to finalize the activation of the first virtual resource; and

program instructions to finalize the activation of the one or more virtual resources, wherein finalizing the activation includes updating the I/O configuration definitions for each of the one or more virtual resources.

2. The computer program product of claim 1, further comprising program instructions, stored on the one or more computer readable storage media, which when executed by a processor, cause the processor to:

determine to prepare the one or more virtual resources for deactivation of the one or more allocated host resource based at least in part on the virtual resource definitions;

deactivate the one or more allocated host resources;

deactivate the one or more virtual resources; and

finalize the deactivation of the one or more virtual resources, wherein finalizing the deactivation includes updating the virtual resource definitions.

3. The computer program product of claim 1, further comprising program instructions, stored on the one or more computer readable storage media, which when executed by a processor, cause the processor to:

determine to prepare the first virtual resource of the virtual resource provider for deactivation, wherein the determination is based at least in part on the virtual resource definitions;

determine to prepare the first host resource of the host resource provider for deactivation; and

assign the first host resource to a second virtual resource for a second resource consumer.

4. The computer program product of claim 3, further comprising program instructions, stored on the one or more computer readable storage media, which when executed by a processor, cause the processor to:

activate the second virtual resource;

activate the second resource consumer.

5. A computer system for managing resources in a server environment, the computer system comprising:

one or more computer processors;

one or more computer readable storage media; and

program instructions stored on the computer readable storage media for execution by at least one of the one or more computer processors, the program instructions comprising;

program instructions to query a first resource consumer for a list, wherein the list includes at least a first virtual resource and a first host resource;

program instructions to query a host resource pool to determine if the first host resource is present;

program instructions to, responsive to determining the first host resource is present in the host resource pool, allocate the first host resource to the first resource consumer;

program instructions to send request to activate the first virtual resource and the first host resource to a virtual resource provider and a host resource provider, wherein the request to activate the first virtual resource and the first host resource is performed on a single thread;

program instructions to determine to prepare one or more virtual resources for activation of one or more allocated host resources based at least in part on virtual resource definitions;

program instructions to activate the one or more allocated host resources;

program instructions to update the virtual resource definitions to indicate the one or more allocated host resources are activated;

program instructions to activate the one or more virtual resources;

program instructions to determine the first resource consumer is initialized;

program instructions to send a request to finalize the activation of the first virtual resource; and

program instructions to finalize the activation of the one or more virtual resources, wherein finalizing the activation includes updating the I/O configuration definitions for each of the one or more virtual resources.

6. The computer system of claim 5, further comprising program instructions, stored on the one or more computer readable storage media, which when executed by a processor, cause the processor to:

determine to prepare the one or more virtual resources for deactivation of the one or more allocated host resources based at least in part on the virtual resource definitions;

deactivate the one or more allocated host resources;

deactivate the one or more virtual resources; and

finalize the deactivation of the one or more virtual resources, wherein finalizing the deactivation includes updating the virtual resource definitions.

7. The computer system of claim 5, further comprising program instructions, stored on the one or more computer readable storage media, which when executed by a processor, cause the processor to:

determine to prepare the first virtual resource of the virtual resource provider for deactivation, wherein the determination is based at least in part on the virtual resource definitions;

determine to prepare the first host resource of the host resource provider for deactivation; and

assign the first host resource to a second virtual resource for a second resource consumer.

8. The computer system of claim 7, further comprising program instructions, stored on the one or more computer readable storage media, which when executed by a processor, cause the processor to:

activate the second virtual resource;

activate the second resource consumer.