Home > Workload Solutions > Safety & Security > White Papers > Vix Vizion Imagus Video Analytics Validation with Dell EMC PowerEdge Server and NVIDIA-T4 GPU > VM Migration and HA failover testing
We first tested the migration time (planned migration, no power fail) for a single VM. We were running 6 camera streams. The configuration was with a single GPU, 24 GB memory, 24 vCPUs. We had two identical R740xd systems set up and using shared storage. We ran the test several times in both directions (A to B, B to A) and the migration took between 32 and 57 seconds with an average time of 45 seconds.
Next, we configured the systems for High Availability per the VMware User Guide. We removed power from a running host (A) and measured the time from “lights out” to a running system on the failover partner (B). We tested the failover time multiple times. The lowest time to “lights on” on the failover partner was 3 min 47 sec and the longest time was 4 min 44 sec with an average time of 4 min 12 sec. This seemed a little long, but when we consider the total boot time of the VM, and all the services and drivers that need to initialize and synchronize, the duration is within expected parameters. We believe that the startup sequence could be optimized if minimizing this time was a performance priority.
Table 1 Migration and Failover Time – 1 VM, 6 camera Streams
Value |
Migration Time |
HA Failover Time |
Average |
43 sec. |
3 min 47 sec |
Min |
32 sec. |
3 min 12 sec |
Max |
57 sec. |
4 min 44 sec |