VMware Ephemeral Disk Support¶
The blueprint adds support for support ephemeral disks to the VMware driver.
The VMware driver does not support ephemeral disks.
Driver parity. All virt driver should implement the same set of basic features (including ephemeral disks). So that when a user uses Nova they don’t have to worry about which virt driver they are using if they are using basic features.
The change will add ephemeral disk support to the VMware driver. The commit acec2579b796d101f732916bfab557a66cebe512 added in a method create_virtual_disk. This method will be used to create the ephemeral disk for the instance.
The method will create an ephemeral disk for the instance on the datastore. This will be done according to the size defined in the instance flavor.
Do not implement the feature.
Data model impact¶
REST API impact¶
Other end user impact¶
Users will be able to use ephemeral disks for the vCenter driver.
A modest increase in network traffic will slow down spawn operations as we create the ephemeral disk, size it, and place it for mounting in the vSphere virtual machine.
Other deployer impact¶
- Primary assignee:
refactor and port https://review.openstack.org/#/c/51793/ for Kilo
Minesweeper tests involving ephemeral disks will be turned on or written
After this blueprint the vmware driver will support ephemeral disks. This will need some additional documentation and changes to supported feature lists.