VMware: Migrating VMs to vSAN – Virtual Blocks
A frequently asked question from customers considering vSAN is “How do I migrate virtual machines from my old storage to vSAN?” There are a few ways this can be done and a number of solutions to facilitate the migration. This blog article discusses a few of these options and concludes with a link to a click-through demo showing the migration of VMs to vSAN.
The easiest method in most cases is to use Storage vMotion. This feature is included in vSphere Standard and higher editions of vSphere and vSphere with Operations Management. Existing storage must be accessible by the hosts in the vSAN cluster. In other words, the cluster will have access to both the vSAN datastore and the storage you are migrating the VMs from (SAN, NAS, etc.). The process is simple: Select one or more VMs in the vSphere Web Client, right-click the selection and click Migrate. Choose the storage-only option, select the vSAN datastore as the destination, and proceed with the last few steps of the migration wizard. vSphere will copy the files – VMX, NVRAM, VMDK(s), etc. – from the old storage to the vSAN datastore. Note that vSphere will potentially be copying large amounts of data. The process can take a significant amount of time depending on how much data must be migrated and how fast your storage is. In most cases, it is best to do just a few VMs at a time. This method does not require any downtime. The VMs continue to run as they are being migrated.
Read the entire article here, Migrating VMs to vSAN – Virtual Blocks
via the fine folks at VMware!