You can download files and folders from a vSAN datastore.

For more information about datastores, see vSphere Storage. The vmdk files are downloaded as stream-optimized files with the filename <vmdkName>_stream.vmdk. VMware stream-optimized file format is a monolithic sparse format compressed for streaming.

You can convert a VMware stream-optimized vmdk file to other vmdk file formats using the vmware-vdiskmanager command‐line utility. For more information, see Virtual Disk Manager User’s Guide.


  1. Navigate to vSAN Datastore.
  2. Click the Files tab and then click Download.
    You see a message alerting you that vmdk files are downloaded from the vSAN datastores in VMware stream-optimized format with the filename extension .stream.vmdk.
  3. Click Download.
  4. Locate the item to download and then click Download.