Shared disks
If you want to share a disk between multiple virtual servers, for example, as a backup disk, you can use a shared disk.
How to create a shared disk in the panel?
To create a shared disk, go to Resources -> Virtual disks from the menu on the left. Then click on the Add new disk button. The following form appears:
After adding the disk to the disk list, click on the Attach button.
The following form appears, where you specify the server to which you want to attach the disk:
Perform the operation for each server to which you want to attach the disk. After adding the disk to the servers, format the disk on the operating system side.
How to configure a shared disk on the operating system side?
To use the shared disk correctly, you must format it using the OCFS2 or GFS2 file system.
For Ubuntu, you can find information at the following links:
Note: It is crucial to format the disk using the above file systems. Otherwise, virtual servers will be "unaware" that the disk is a shared disk, which will lead to situations where virtual servers will overwrite each other's data on such a disk, causing irreversible damage to data.