Looking at the VSAN concept with stretched data centers as a means for migrating customers into our hosting data vcenter without downtime for the customers virtual machines. Just wondering if anyone has any experience with such a setup, either stretched data centers with VSAN or any other type of "stretched" storage that will allow for vmotion across physical data centers.
Your input in appreciated.
Peter
Not supported, for the following reasons: vSphere Metro Storage Cluster using Virtual SAN, can I do it?
Here is a link to the vMSC supported arrays on the storage HCL:
VMware Compatibility Guide: Storage/SAN Search
A few challenges with your plan:
- You would need similar storage on the other end unless you are using something like EMC VPLEX which can front-end multiple vendor arrays
- You still need to stretch L2 to migrate in. To be honest, NSX would be awesome for your plan and I'd start looking at that before I worry about the storage. Even if you have to offline migrate a VM, allowing customers to keep their existing IP scheme permanently would be a huge plus
- You will likely run into version issues trying to get the storage stretch cluster working
As an alternative you could consider offering a DR service and use SRM/Zerto (where needed) to failover VMs as a migration strategy. You'd kill two birds with one stone - DR testing and migration. You could align this with your customer DR testing schedule so there is no additional outage.