This document summarizes new features in Hyper-V 2008 R2 and VMM 2008 R2, including increased host limits, live migration, core parking, second level address translation, virtual machine queue, native VHD, and enhanced management capabilities in VMM 2008 R2 such as support for live migration and cluster-to-cluster migration. It also discusses upgrades from previous versions and tools for developers.

1. What’s New with Hyper-V 2008 R2 and VMM 2008 R2 Aidan Finn BSc, MCSE, MVP http://joeelway.spaces.live.com @joe_elway

3. Cluster Shared Volumes

4. Live Migration

5. Core Parking

6. Second Level Address Translation

7. Virtual Machine Queue

8. Native VHD

10. Working with large and complex IT since 1996

11. Systems and Infrastructure Manager with C Infinity (http://www.cinfinity.ie): cloud computing services

12. Specialised in servers and systems management

13. MVP:

14. 2008: Configuration Manager

15. 2009: Virtualisation – Systems Management

16. Member of MS Springboard STEP

17. Blog: http://joeelway.spaces.live.com

19. 64 logical processors (cores)

20. 512 virtual processors (8 VP’s per LP)

21. 384 running VM’s

22. 64 VM’s per cluster node

25. Easier than ever – honestly!

26. Virtual machine treated as cluster resource

27. Each VM should (not must) be on a dedicated LUN *

28. Quick Migration, not Live Migration (aka VMotion)* Mandatory for VMM 2008

30. VM saves its state

31. Disk fails over to destination host

32. VM restores its saved state

33. 1GB RAM VM Takes 8 seconds on 4GB Fibre Channel SAN with 15K SCSI disks, e.g HP EVA SAN

34. Supported with Fibre Channel and iSCSI

35. Test labs will work with W2008 file shares

38. One node owns the storage namespace (e.g. directory structure) and metadata

39. Other nodes can own the storage backing an individual file’s data (e.g. VHD)

40. Benefits of CSV:

41. Can store all VM VHDs on one LUN

42. High-performance access to VHDs from owning nodes

43. All nodes have read/write access to file data

44. Seamless VM movement between nodes

45. Any node can read from VHD, so no need to change LUN ownership

46. Seamless LUN ownership transition

49. You need a CSV certified backup solution for host level “snapshot” backups

50. DPM 2007 SP1 does not have this

51. Wait for DPM v3

54. Live Migration Create VM on target server Copy memory pages from the source to the target via Ethernet Final state transfer Pause virtual machine Move storage connectivity from source host to target host via Ethernet Run new VM on target; Delete VM on source Host 1 Host 2 Blue = Storage Purple = Networking Shared Storage

55. Live Migration State Transfer Memory Configuration Configuration State State Server 1 Server 2

57. The same family of processor – no mixing of Intel and AMD

60. Hypervisor maps processor usage data into the parent

61. Updates every 100ms

62. Parent tells hypervisor which cores to park

63. Hypervisor lets processors finish work, but stops including them in scheduling decisions

65. Second Level Address Translation

66. VM Memory Management Guest Virtual Address Guest Virtual Address Guest OS defines GVA-to-GPA mappings Shadow page tables combine these mappings because the processor knows how to perform only one level of translation Guest Physical Address Hypervisor defines GPA-to-SPA mappings System Physical Address System Physical Address Hyper-V R2 Hyper-V

68. Intel: Extended Page Tables (EPT)

69. AMD: Nested Page Tables (NPT)/Rapid Virtualization Indexing (RVI)

70. Processor provides two levels of translation

71. Walks the guest OS page tables directly

72. No need to maintain Shadow Page Table

73. No hypervisor code for demand-fill or flush operations

74. Resource savings

75. Hypervisor CPU time drops from 10% to 2%

76. Roughly 1MB of memory saved per VM

78. Virtual Machine Queue (VMQ) Parent Partition VM1 VM2 Virtual Machine Switch Ethernet TCP/IP TCP/IP Routing VLAN Filtering Data Copy Port 1 Port 2 VM NIC 1 VM NIC 2 Miniport Driver NIC VM BUS

79. VMQ Architecture Parent Partition VM1 VM2 Virtual Machine Switch Ethernet TCP/IP TCP/IP Routing VLAN filtering Data Copy Port 1 Port 2 VM NIC 1 VM NIC 2 Miniport Driver Q1 Default Queue Q2 VM BUS Switch/Routing unit NIC

81. TCP/IP traffic in a VM can be offloaded to a physical NIC on the host computer.

82. Benefits

83. Reduce CPU burden

84. Networking offload to improve performance

85. Live Migration is supported with Full TCP Offload

88. Ethernet frames >1,500 bytes

89. Ad hoc standard is ~9k

90. Overview

91. Enables 6x larger payload per packet

92. Benefits

93. Reduce CPU utilization of large file transfers

96. SUSE Linux Enterprise Server 10 with Service Pack 1 (x86 Edition or x64 Edition)

97. SUSE Linux Enterprise Server 11 (x86 Edition or x64 Edition)

98. Red Hat Enterprise Linux (RHEL) 5.2 and 5.3 (x86 Edition or x64 Edition) (Emulated devices only) *

100. Accepted

101. All future Linux kernels can be enlightened

104. VHD – Virtual Hard Disk used by virtualisation products and Windows backups

106. Boot from a VHD file

107. W2008 R2 WDS able to deploy VHD files

110. Basic management using Hyper-V and Failover Clustering MMC’s

111. Advanced virtualisation management using System Center Virtual Machine Manager

112. VMM 2008 integrates with OpsMgr 2007

113. System Center Enterprise CAL: includes 4 VM’s on the host

115. Easier cluster management

116. Hardware templates

117. Library for VHD’s, PowerShell scripts, ISO

118. Self Service web console

119. Can manage Virtual Server 2005, ESX and many Virtual Center installations

120. Integrates with OpsMgr 2007 SP1

123. Integration with OpsMgr 2007 R2

124. Support for Live Migration

125. Allows many VM’s per LUN for CSV

126. Storage Quick Migration

127. SAN enhancements, e.g. cluster-cluster migration, rapid provisioning & snapshots

128. Network enhancements

129. Maintenance mode

132. N/A

133. http://www.microsoft.com/hyper-v-server/en/us/faq.aspx

134. Standalone Server:

135. In-place

136. http://support.microsoft.com/kb/957256

137. Cluster:

138. In-place not supported

139. Rolling upgrade via evict node and create new cluster

140. http://support.microsoft.com/kb/957256

141. VMM:

142. In-place

148. Managed groups of VM’s as single entity

149. Rapidly clone VM’s

150. Integrate with ALM tools

152. 1 vCPU + 1GB RAM + 40GB Disk = 1 point

153. 2 vCPU + 2GB RAM + 80GB Disk = 2 points

154. Delegate rights for self service deployment and administration

155. Assign quota points to users

157. Blog: http://joeelway.spaces.live.com/

158. Windows User Group: http://www.mtug.ie