What are Unbreakable clusters
If one of the nodes in the virtualization cluster fails, the VMs will automatically be recovered on an intact node. Recovery occurs even if the VMmanager platform itself fails.
High availability management mechanism in VMmanager
The high availability mechanism is supported in clusters of two or more nodes with Ceph or SAN storage and KVM virtualization.
In a high availability cluster, one of the nodes is designated as the master. The master node monitors the availability of other nodes. Factors taken into account include:
- availability of the master network;
- availability of network storage;
- complete node failure;
- test IP address — for cases when a node has lost access to the master network, but the network is still available to the VM.
Disaster recovery of the node
If the master node detects a disaster, the recovery procedure begins: virtual machines are started on an intact node. In total, it takes 15 seconds to a minute to recognize a disaster. Relocation of virtual machines and their startup on a new node takes a few seconds.
In a high availability cluster, you can select VMs for auto-recovery and set the order of migration.
Our implementation of high availability avoids the Split Brain scenario - when two virtual machines are connected to the same disk at the same time.
To provide high availability of the VMmanager platform itself, it can be deployed on a virtual machine inside a high availability cluster.
Try VMmanager with highly available Unbreakable clusters
for website hosting or other businesses
Select the required pricing plan
- Automatic provisioning of VPS from 4 seconds
- Multi-tenant architecture
- KVM virtualization
- Lightweight LXC/LXD containers
- Built-in self-service portal
- Integration with billing systems
- Virtual networks
- Flexible service customization and REST API for custom integrations
The cost includes:
- Physical core license € /year
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About pricing plan
KVM hardware virtualization
Guest OS repositories
Local user management
User management through MS AD/Free IPA/LDAP integration
User self-service portal
Virtualization server management
Support for leased physical equipment
Support for L2 networks—VLAN, bond, bridge
Support for L3 networks—IP-fabric
Support for virtual networks—VXLAN
IP address management
Geographically distributed node clusters
VM distribution policies by node
Software fine-tuning on a VM (Shell/PowerShell)
REST API available
Live migration of VMs between nodes
Live migration of VM disks between storages
Built-in VM backup system
Built-in node and VM monitoring system
Integration with BILLmanager
Integration with DCImanager
Integration with IPmanager
Integration with Terraform
Integration with Swagger
Integration with Zabbix
Integration with Grafana
Integration with Telegram
Integration with WHMCS
Integration with PowerDNS