Ceph distributed storage
VMmanager supports Ceph network storage, which can be used by the administrator to create a fault tolerant cluster.
In a cluster with standard architecture, the management server has the exceptional role. During maintenance, the administrator has to move the execution point along with the disk file of the virtual machine to another server on the network. In case of failure, the virtual machine’s data can only be restored manually from backups. Both transfer and recovery take a long time.
In a cluster with distributed storage, the execution point is not bound to a single server. The transfer only takes one click: the domain of the virtual machine is changed and the drive is simply reconnected. In case of failure, the virtual machine domain is generated and the machine is started on a running server. The VM drive is automatically connected to the new execution point.
Advantages of Ceph for business
- You are no longer bound to the space constraints of a particular node. You no longer need to try to guess how much space is available at the node for backup, since all drives are now in the network storage.
- The node service time is reduced by many times without affecting the customer’s services. The period when the system remains unavailable (RTO) is reduced.
- Ceph ensures preservation of the client’s data.
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