Re: [nova][ptg] Allow compute nodes to use DISK_GB from shared storage RP by using aggregate relationship

On 11/8/2019 2:01 AM, Balázs Gibizer wrote:

* when compute restarts and sees that 'using_shared_disk_provider' = True in the config, it adds the its compute RP to the aggregate defined in 'sharing_disk_aggregate' Then if it sees that the root RP still has DISK_GB inventory then trigger a reshape

Conversely, if the deployer decides to use local disk for the host again, what are the steps? 1. Change using_shared_disk_provider=False 2. Restart/SIGHUP compute service 3. Compute removes itself from the aggregate 4. Compute reshapes to add DISK_GB inventory on the root compute node resource provider and moves DISK_GB allocations from the sharing provider back to the root compute node provider. Correct? -- Thanks, Matt