Systems and Methods to Adaptively Load Balance User Sessions to Reduce Energy Consumption

• US 20090106571A1
• Filed: 10/21/2008
• Published: 04/23/2009
• Est. Priority Date: 10/21/2007
• Status: Abandoned Application

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Low, Anthony, Roychoudhry, Anil, Chin, Huai Chiun
• Application Number:
  US12/255,197
• Publication Number:
  US 20090106571A1
• Time in Patent Office: Days
• US Class Current: 713/310
• CPC Class Codes: G06F 9/4856 resumption being on a different machine, e.g. task migration, virtual machine migration G06F9/5088 takes precedence
• CPC Class Codes: G06F 9/505 considering the load
• CPC Class Codes: G06F 9/5094 where the allocation takes into account power or heat criteria power management in computers in general G06F1/3203; thermal management in computers in general G06F1/206
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A method for adaptively load balancing user sessions to reduce energy consumption includes identifying a session type for each of a plurality of user sessions. A server group is defined, providing access to a subset of the user sessions having a common session type. A power management schedule is also defined for the server group. The method includes consolidating, onto at least one server in the server group, the subset of user sessions. In still another aspect, a method for reducing energy consumption by dynamically managing power modes for a plurality of servers, includes monitoring, via a power monitoring agent, a level of load on one of the servers. A power management console generates a power management schedule for a server, responsive to the monitored level of load. Responsive to the power management schedule, a power management controller dynamically controls a level of power for the server.

Claims

1. A method for adaptively load balancing user sessions to reduce energy consumption, comprising:

(a) identifying a session type for each of a plurality of user sessions;

(b) defining a server group providing access to a subset of the plurality of user sessions having a common session type;

(c) defining a power management schedule for the server group; and

(d) consolidating, onto at least one server in the server group, the subset of the plurality of user sessions.

2. The method of claim 1 further comprising receiving, from a power management agent, information identifying a session type for at least one of the plurality of user sessions.

3. The method of claim 1, wherein step (b) further comprises defining a server group including at least one server substantially optimized to provide user sessions of the common session type.

4. The method of claim 1 further comprising monitoring, by a power management agent, a change in a level of load.

5. The method of claim 1 further comprising dynamically modifying the power management schedule for the server group, responsive to a change in a level of load.

6. The method of claim 1 further comprising dynamically allocating an available resource within the server group.

7. The method of claim 1, wherein step (d) further comprises relocating at least one of the subset of the plurality of user sessions from a first server in the server group to a second server in the server group.

8. The method of claim 7 further comprising powering down the first server in the server group.

9. A system for adaptively load balancing user sessions to reduce energy consumption, comprising:

a power management console, providing an interface for;

identifying a session type for each of a plurality of user sessions,

defining a server group providing access to a subset of the plurality of user sessions having a common session type, and

defining a power management schedule for the server group; and

a power management controller consolidating, onto at least one server in the server group, the subset of the plurality of user sessions.

10. The system of claim 9, wherein the power management console further comprises an interface for identifying a level of load associated with the identified session type.

11. The system of claim 9, wherein the power management console further comprises an interface for identifying a session type for an application session.

12. The system of claim 9, wherein the power management console further comprises an interface for identifying a session type for a desktop session.

13. The system of claim 9, wherein the power management console further comprises an interface for identifying a session type for a connection to a virtual machine.

14. The system of claim 9, wherein the power management console further comprises an interface for defining a server group including at least one server substantially optimized to provide user sessions of a common session type.

15. The system of claim 9 further comprising a power monitoring agent, in communication with the power management console and the power management controller, providing information for identifying a session type for at least one of the plurality of user sessions, and monitoring a change in a level of load.

16. The system of claim 9, wherein the power management console automatically defines the power management schedule for the server group, responsive to identifying a session type for each of the plurality of user sessions.

17. The system of claim 9, wherein the power management console automatically defines the power management schedule for the server group, responsive to defining the server group providing access to the subset of the plurality of user sessions having a common session type.

18. The system of claim 9, wherein the power management console dynamically changes the power management schedule for the server group, responsive to a change in a level of load on at least one server in the server group.

19. The system of claim 9, wherein the power management controller dynamically changes the power management schedule for the server group, responsive to a change in a level of load on at least one server in the server group.

20. The system of claim 9, wherein the power management controller further comprises means for dynamically allocating an available resource within the server group.

21. The system of claim 9, wherein the power management controller further comprises means for relocating at least one of the subset of the plurality of user sessions from a first server in the server group to a second server in the server group.

22. The system of claim 21, wherein the power management controller further comprises a transmitter sending a command to the power management agent to power down the first server in the server group.

23. The system of claim 21, wherein the power management controller further comprises means for directing the power management agent to place the first server in the server group in a low power state.

24. A method for reducing energy consumption by dynamically managing power modes for a plurality of servers, comprising:

(a) monitoring, via a power monitoring agent, a level of load on one of a plurality of servers;

(b) generating, by a power management console, a power management schedule for a server in the plurality of servers, responsive to the monitored level of load; and

(c) dynamically controlling, by a power management controller, a level of power for the server, responsive to the power management schedule.

25. The method of claim 24, wherein (b) further comprises dynamically generating, by the power management console, the power management schedule for a server in the plurality of servers, responsive to the monitored level of load.

26. The method of claim 24 further comprising dynamically modifying, by the power management controller, the power management schedule for a server in the plurality of servers, responsive to the monitored level of load.

27. The method of claim 24, wherein (c) further comprises dynamically controlling a level of power by powering up one of a plurality of servers.

28. The method of claim 24, wherein (c) further comprises dynamically controlling a level of power by powering down one of a plurality of servers.

29. A system for reducing energy consumption by dynamically managing power modes for a plurality of servers, comprising:

a power management agent monitoring a level of load on one of the plurality of servers;

a power management console, in communication with the power management agent, defining a power management schedule for the one of the plurality of servers, the power management schedule generated responsive to the monitored level of load; and

a power management controller, in communication with the power management console and the power management agent, dynamically controlling a level of power to the one of the plurality of servers, responsive to the power management schedule.

30. The system of claim 29, wherein the power management agent executes on one of the plurality of servers.

31. The system of claim 29, wherein the power management console further comprises an interface displaying the monitored level of load on one of the plurality of servers.

32. The system of claim 29, wherein the power management console further comprises an interface receiving, from a user, a power management schedule.

33. The system of claim 29, wherein by the power management console further comprises means for dynamically generating the power management schedule for the one of the plurality of servers, responsive to the monitored level of load.

34. The system of claim 29, wherein the power management controller further comprises means for dynamically modifying the power management schedule for the one of the plurality of servers, responsive to the monitored level of load.

35. The system of claim 29, wherein the power management controller further comprises means for controlling one of a plurality of levels of power for the one of the plurality of servers, the plurality of levels of power including a powered-down level.

36. The system of claim 29, wherein the power management controller further comprises means for controlling one of a plurality of levels of power for the one of the plurality of servers, the plurality of levels of power including a low-power level.

37. The system of claim 29, wherein the power management controller further comprises means for controlling one of a plurality of levels of power for the one of the plurality of servers, the plurality of levels of power including an intermediate-power level.

38. The system of claim 29, wherein the power management controller further comprises means for controlling one of a plurality of levels of power for the one of the plurality of servers, the plurality of levels of power including a high-power level.