Chapter 11. Additional information
Chapter 11. Additional information 11.1. MTV performance addendum The data provided here was collected from testing in Red Hat Labs and is provided for reference only. Overall, these numbers should be considered to show the best-case scenarios. The observed performance of migration can differ from these results and depends on several factors. 11.1.1. ESXi performance Single ESXi performance Test migration using the same ESXi host. In each iteration, the total VMs are increased, to display the impact of concurrent migration on the duration. The results show that migration time is linear when increasing the total VMs (50 GiB disk, Utilization 70%). The optimal number of VMs per ESXi is 10. Table 11.1. Single ESXi tests Test Case Description MTV VDDK max_vm inflight Migration Type Total Duration cold migration, 10 VMs, Single ESXi, Private Network [a] 2.6 7.0.3 100 cold 0:21:39 cold migration, 20 VMs, Single ESXi, Private Network 2.6 7.0.3 100 cold 0:41:16 cold migration, 30 VMs, Single ESXi, Private Network 2.6 7.0.3 100 cold 1:00:59 cold migration, 40 VMs, Single ESXi, Private Network 2.6 7.0.3 100 cold 1:23:02 cold migration, 50 VMs, Single ESXi, Private Network 2.6 7.0.3 100 cold 1:46:24 cold migration, 80 VMs, Single ESXi, Private Network 2.6 7.0.3 100 cold 2:42:49 cold migration, 100 VMs, Single ESXi, Private Network 2.6 7.0.3 100 cold 3:25:15 [a] Private Network refers to a non -Management network Multi ESXi hosts and single data store In each iteration, the number of ESXi hosts were increased, to show that increasing the number of ESXi hosts improves the migration time (50 GiB disk, Utilization 70%). Table 11.2. Multi ESXi hosts and single data store Test Case Description MTV VDDK Max_vm inflight Migration Type Total Duration cold migration, 100 VMs, Single ESXi, Private Network [a] 2.6 7.0.3 100 cold 3:25:15 cold migration, 100 VMs, 4 ESXs (25 VMs per ESX), Private Network 2.6 7.0.3 100 cold 1:22:27 cold migration, 100 VMs, 5 ESXs (20 VMs per ESX), Private Network, 1 DataStore 2.6 7.0.3 100 cold 1:04:57 [a] Private Network refers to a non-Management network 11.1.2. Different migration network performance Each iteration the Migration Network was changed, using the Provider , to find the fastest network for migration. The results show that there is no degradation using management compared to non-managment networks when all interfaces and network speeds are the same. Table 11.3. Different migration network tests Test Case Description MTV VDDK max_vm inflight Migration Type Total Duration cold migration, 10 VMs, Single ESXi, MGMT Network 2.6 7.0.3 100 cold 0:21:30 cold migration, 10 VMs, Single ESXi, Private Network [a] 2.6 7.0.3 20 cold 0:21:20 cold migration, 10 VMs, Single ESXi, Default Network 2.6.2 7.0.3 20 cold 0:21:30 [a] Private Network refers to a non-Management network