Disaster Recovery for your Cloud Servers
How to protect a server that already runs on someone else's infrastructure, and how you reach it after a restore.
Sefthy also protects servers that already live on another infrastructure, whether that is another provider’s cloud or a third party datacentre. The backup starts from the server, not from the hypervisor, so where the machine runs does not change the path.
How you set it up
- From the DR list press Setup a new DR and follow the wizard.
- At step 1 you generate the install command and run it on the server as administrator. The agent detects CPU, RAM, disks and network cards and sets itself up for the backup. The token in the command expires after 24 hours.
- At the connector step you pick the Connector to associate with the DR. You need one in this scenario too.
- Once the DR is active you set the times with Backup Schedules on the DR page.
Where the Connector goes
The Connector extends the customer network up to the restored machine. If the protected server sits on a third party infrastructure, that is the network to extend, so the Connector belongs there. The right form is the x86 ISO, which you put on a virtual machine in the same network as the server you protect.
A Connector that is not active yet can still be attached to the DR. The DR page and the local restore work right away, while the cloud restore will want it powered on when you start it.
IP addresses after a restore
The restored server keeps the private IP address it had, the one recorded in the DR plan, and at the end of the restore an ARP-Ping checks that it answers. The public IP address assigned by the original provider is lost instead, because it belongs to that provider and does not travel with the machine.
How you reach the restored server
If the Connector is in the same network as the protected server, the restored machine becomes reachable as before, at the same private address.
When that network is gone or unreachable, the Emergency VPN is what remains, and it lets you get onto the server restored in the Sefthy cloud from anywhere. It requires the Sefthy PRO plan and the VPN gateway configured on the connector, as described in Configuring the Emergency VPN.
If you need a hand, open a ticket from the Console.