Sync 2 VPS based on Plesk between them.
Any modifications on each VPS instantly appear in other VPS.
vhost must be mounted on each VPS from a 3 VPS DATA with NFS or other(your propositions are welcome)
Data base Mysql for users are on another cluster, so don't need to sync.
Those 3 VPS's are ready for work.
This job must be done asap or now. PS:Please bid if you know what you do.
Thank you to all.