A RADOS Block Device (RBD) is software that facilitates the storage of block-based data in the open source Ceph distributed storage system. An RBD can be mounted to a VM.
RBD storage pool management—For a VM to use RBDs in the distributed storage system, you must add an RBD storage pool to the distributed storage system, and then mount the RBD storage pool to the host attached to the VM. Hosts in different clusters cannot use the same RBD storage pool.
RBD client management—A host can use RBD storage resources only when it has an RBD client installed. The RBD client type must match the distributed storage type. You upgrade an RBD client only when distributed storage upgrade requires an RBD client upgrade. The installation or upgrade package for an RBD client is provided with the distributed storage version by the distributed storage manufacturer
ARM hosts do nont support RBD storage.
An RBD storage pool being used by a VM cannot be deleted.
During RBD client installation or upgrade, the host will enter maintenance mode and running VMs will be automatically migrated to other hosts. You must manually migrate the VMs to the original host after installation or upgrade.
If a storage volume in a data pool has been configured as a shared file system, iSCSI LUN, or template pool, you cannot configure the data pool as an RBD storage pool.
Data pools in the same disk pool can be configured as RBD storage pools only on the same Space Console system. Only data pools of the thin provisioning mode can be configured as RBD storage pools.
From the navigation pane, select Data Center > Virtualization > Cluster name.
Click the RBD Storage tab.
Click Add.
Configure the parameters as described in "Parameters."
Click OK.
From the navigation pane, select Data Center > Virtualization > Cluster name.
Click the RBD Storage tab.
Click Edit for an RBD storage pool.
Edit the parameters as described in "Parameters," and then click OK.
From the navigation pane, select Data Center > Virtualization > Cluster name.
Click the RBD Storage tab.
Click Delete for an RBD storage pool.
Click OK.
From the navigation pane, select Data Center > Virtualization > Cluster name.
Click the RBD Storage tab.
Click Manage RBD Clients.
Select a resource type, select hosts, and the click Recheck.
Select the hosts that are not installed with an RBD client, and the click Install.
Click OK.
RBD storage management
Distributed Storage: Select a distributed storage resource that provides RBD storage service.
Data Pool: Select a block storage data pool as the RBD storage pool.
RBD client management
Resource Type: Select a distributed storage resource type.
Recheck: Recheck the installation progress of the RBD client.
Installation State: Installation state of the RBD client.
Progress: Installation progress of the RBD client.