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SrVMwarer
Hot Shot
Hot Shot

[Question] Cross VC NSX - Mobility in L3

Hello VMwarers!

While learning NSX in more advanced Designs/Implementations I learned that when we deploy Cross VC NSX now we have a UTZ,ULS and UDLRs good, now we don't have a strectched vSAN cluster across regions/sites suppose we have our clusters within each site no clusters configured between two sites, and the vMotion now works at L3

The point I can't understand how a host in Site-A will vMotion a VM to another host in Site-B and we haven't any shared Storage?

Regards, İlyas
2 Replies
mauricioamorim
VMware Employee
VMware Employee

vMotion is supported migrating both compute and storage simultaneously. Shared storage is not mandatory. See here: Migration with vMotion in Environments Without Shared Storage

Other than that vMotion between 2 sites is not the only use case of extending L2 between sites and using Cross-VC NSX. You might also have replication being done between storage on either site so you can recover and bring up VMs on another site without changing IP address.

SrVMwarer
Hot Shot
Hot Shot

I imágened that vMotion always needs a shared storage so the service behind the scenes movies only VM configs from utilizing a host to another one, Now I think the behind the scenes service that provides us the vMotions has privileges to access, creates a shadow copy from the running VM compresses it, moves into another host another storage and then decompresses it running into the new chosen host

Regards, İlyas