Near on-line server

• US 6,990,666 B2
• Filed: 07/25/2002
• Issued: 01/24/2006
• Est. Priority Date: 03/18/2002
• Status: Expired due to Term

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Surgient, Inc. (Quest Software, Inc.)
• Inventors: Hirschfeld, Robert A., McCrory, Dave D.
• Primary Examiner(s): An, Meng-Al T.
• Assistant Examiner(s): Tang, Kenneth
• Application Number:
  US10/202,754
• Publication Number:
  US 20030177176A1
• Time in Patent Office: 1,279 Days
• Field of Search: 718 1-108, 709200-253
• US Class Current: 718/104
• CPC Class Codes: G06F 2209/503 Resource availability
• CPC Class Codes: G06F 9/485 Task life-cycle, e.g. stopping, restarting, resuming execution G06F9/4881 takes precedence
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: G06F 9/5061 Partitioning or combining of resources
• 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 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1023 based on a hash applied to IP addresses or costs
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer
• CPC Class Codes: H04L 67/30 Profiles
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A dynamic state manager (DSM) for a server cloud manager (SCM) of a virtualized logical server cloud including a resource definition, a rules module and a state manager engine. The resource definition incorporates information of the available physical and logical resources of the server cloud, including cost, priority, usage and demand information of the resources. The resource definition further incorporates dependencies and relationships between physical and logical resources. The rules module includes predetermined behavioral rules based on demand, usage, priority and cost information. The behavioral rules define optimized resource utilization of the resources of the server cloud. The state manager engine is linked to the resource definition and the rules module and cooperates with the SCM to apply the behavioral rules to achieve optimized resource utilization.

Claims

1. A virtualized logical server cloud comprising:

physical resources comprising a plurality of networked physical servers executing virtualization software that virtualizes a portion of the physical resources to implement logical resources which includes at least one logical server;

each logical server having a plurality of different activation states including an active state, a suspended state, an off state and at least one storage state, wherein each of the plurality of activation states consumes a successively reduced amount of the physical resources from the active state to the at least one storage state; and

a server cloud manager (SCM) interfaced to the physical resources for managing operation and activation state of each logical server, the SCM including a dynamic state manager (DSM) comprising;

a resource definition that incorporates information of the physical and logical resources of the virtualized logical server cloud, including cost, priority, usage and demand information of the physical and logical resources and that incorporates dependencies and relationships between the physical and logical resources;

a rules module that comprises predetermined behavioral rules based on demand, usage, priority and cost information, wherein the behavioral rules define optimized utilization of the physical and logical resources of the virtualized logical server cloud; and

a state manager engine, linked to the resource definition and the rules module, that cooperates with the SCM to apply the behavioral rules to control the activation state of each logical server of the virtualized logical server cloud between the active, suspended, off and storage states to achieve optimized utilization of the physical and logical resources.

2. The virtualized logical server cloud of claim 1, wherein the resource definition includes:

a physical resource module that incorporates information of the physical resources available to the virtualized logical server cloud and that incorporates resource dependencies and relationships between the physical and logical resources;

a resource cost module that incorporates relative cost information associated with the physical resources and each logical server;

a resource priority module that incorporates relative priority information of entities authorized for each logical server;

a usage module that incorporates current usage information of the physical resources; and

a demand module that incorporates current and pending demand information of the physical resources.

3. The virtualized logical server cloud of claim 2, wherein the demand module incorporates anticipated demands information.

4. The virtualized logical server cloud of claim 2, wherein:

the physical resource module incorporates information of processor, memory and storage resources; and

wherein the resource cost module incorporates information concerning cost of usage of the processor, memory and storage resources and cost of moving logical server files between different types of storage or memory.

5. The virtualized logical server cloud of claim 4, wherein:

the resource cost module incorporates cost of switching the activation state of each logical server; and

wherein the rules module incorporates a logical server decay rule that considers usage, relative cost and relative priority information to determine the activation state of each logical server.

6. The virtualized logical server cloud of claim 1, wherein the at least one storage state includes storage of logical server files on a local physical server and storage of logical server files on a local storage coupled to the virtualized logical server cloud.

7. The virtualized logical server cloud of claim 1, wherein the plurality of different activation states further includes a remote state in which a logical server is located on a remote virtualized logical server cloud affiliated with the local virtualized logical server cloud.

8. The virtualized logical server cloud of claim 1, wherein the rules module incorporates subscription management, contracts and business purposes rules that enable over-subscription of the virtualized logical server cloud to maximize resource utilization over time.

9. The virtualized logical server cloud of claim 8, wherein the rules module ensures availability of the physical and logical resources to meet highest priority demands.

10. A server cloud management system that virtualizes physical resources comprising a plurality of networked physical servers into a virtualized logical server cloud including logical resources comprising at least one logical server and that manages operation of each logical server, the server cloud management system comprising:

virtualization software executed on the physical servers for implementing each logical server; and

a server cloud manager (SCM) for controlling each logical server and the physical and logical resources, each logical server capable of existing in any one of a plurality of different activation states including an active state, a suspended state, an off state and at least one storage state wherein each of the plurality of activation states consumes a successively reduced amount of the physical resources from the active state to the at least one storage state, the SCM comprising;

a plurality of core components that serve as a shared foundation to collectively manage events, validate and authorize virtualized logical server cloud users and agents, enforce predetermined requirements and rules and store operation data; and

a plurality of interface components that enable communication with and control of entities associated with the virtualized logical server cloud, the interface components including a dynamic state manager (DSM) that applies predetermined behavioral rules based on demand, usage, priority and cost to control the activation state of each logical server of the virtualized logical server cloud between the active, suspended, off and storage states to optimize usage of the logical and physical resources of the virtualized logical server cloud.

11. The server cloud management system of claim 10, wherein the DSM comprises:

a resource definition that incorporates information of the physical and logical resources of the virtualized logical server cloud, the information including cost, priority, usage and demand information of the physical and logical resources;

a rules module that comprises predetermined behavioral rules based on the demand, usage, priority and cost information, wherein the behavioral rules define optimized resource utilization of the physical and logical resources of the virtualized logical server cloud; and

a state manager engine, linked to the resource definition and the rules module, that cooperates with the core components and any other interface components of the SCM to apply the behavioral rules to achieve optimized resource utilization.

12. The server cloud management system of claim 11, wherein the DSM ensures best use of the physical resources over time under dynamic loads if any changes of availability of the physical resources occur.

13. The server cloud management system of claim 11, wherein the DSM ensures availability of the physical and logical resources to meet demands having highest criticality.

14. The SCM of claim 13, wherein the DSM enables over-subscription of the virtualized logical server cloud by optimizing utilization of remaining resources by demands having lower criticality.

15. The server cloud management system of claim 14, wherein the DSM facilitates massive over-subscription of the virtualized logical server cloud by maximizing utilization of the physical and logical resources over time.

16. The server cloud management system of claim 11, wherein:

the resource definition incorporates cost of processor, memory and storage resource usage information, cost of moving logical server files between different types of storage or memory, and cost of switching the activation state of each logical server; and

wherein the rules module includes a logical server decay rule that considers usage, relative cost and relative priority information to determine the activation state of each logical server.

17. The server cloud management system of claim 10, wherein at least one storage state includes storage on a physical server and storage on a local storage coupled to the virtualized logical server cloud.

18. The server cloud management system of claim 10, wherein the plurality of different activation states includes a remote state in which a logical server is located on a remote virtualized logical server cloud.