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By using the Openstack dashboard, every user can create such volumes and then attach them to a virtual machine. Due to a limitation of the crypto library, the maximum size of each volume is 15 TB.
Since LUKS are encrypted volumes, the time needed to create one can vary greatly with respect to the size of the volume to create (most of which is the time needed to encrypt the data).
Here are some indicative times needed to create different sized LUKS volumes from the dashboard (stime):
- 1 TiB: 15 minutes
- 7 TiB: 2 hours
- 10 TiB: 3-4 hours
The user can access the data stored in such LUKS volumes by login into the corresponding virtual machine. Only the users with authorisation to login into the virtual machine will access the data "in clear", even if it is encrypted by key.
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