Replication Assisted vMotion: unlike HCX vMotion, which moves one VM at a time, this VCF Operations HCX migration type replicates large numbers of VMs in parallel and keeps them in sync until a scheduled switchover, when each moves live through a final delta vMotion. It is the choice for zero-downtime migration of big waves.
Also called Replication Assisted vMotion.
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In the Ultra Transcenders books
Each book explains RAV in context, with comparison tables and the common traps.
Terms in this definition
- HCX vMotion
Live migration in HCX, one VM per move: the running machine is carried to the paired site over vMotion together with its memory and execution state, keeping its IP and MAC addresses, so users see no outage. Inter-site bandwidth and latency govern how long it takes.
- VCF Operations HCX
Add-on licensed for moving workloads inside and between VCF private clouds and linking those environments, offering bulk or live migration plus network extension so IP addresses can stay the same.
- Virtual machines
Infrastructure-as-a-service compute giving complete control of the operating system, making it a fit for lift-and-shift moves and for software relying on OS-level pieces like COM.
- vMotion
Moves a running VM to another host with no downtime; its storage counterpart, Storage vMotion, relocates the files between datastores instead.
Related terms
- Mobility Agent
Removing this host object breaks HCX vMotion, Cold and Replication Assisted vMotion migrations, which need it. The HCX-IX appliance places it in vCenter, and whatever resources it shows do not represent actual consumption.
- Mobility Optimized Networking
Avoids tromboning on networks extended by HCX: migrated VMs route via the destination site instead of back through the gateway at the source. This Network Extension option applies automatically to VMs moved by Bulk migration, whereas vMotion and RAV leave VMs on the source gateway until someone reconfigures them.
- Retain MAC
An extended VCF Operations HCX migration option for Bulk migrations. Switched on, a VM keeps its MAC address; switched off, it is given a new one. vMotion and Replication Assisted vMotion keep the MAC every time.