→ Applies to: SynetoOS 6.x

In some cases, when multiple Syneto systems are configured to replicate VMs to another SynetoOS 6 host, after upgrading to SynetoOS 6 you must ensure that the machine ID is unique across all hosts, with no duplicates in your SynetoOS installations.

If duplicates are identified, you must follow the procedure in this article to change the machine ID and ensure uniqueness on each host running VM replicas.

Step 1. Connect to SynetoOS appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

Step 2. Get root privileges

sudo su -

Step 3. Check machine id

cat /etc/machine-id

This command must be executed on all SynetoOS 6 systems.
If the primary host sending the replication and the secondary host share the same machine-id, conflicts will occur.

Step 4. Change machine id

truncate -s 0 /etc/machine-id

ChatGPT said:

This command changes the machine-id and must be executed on all SynetoOS 6 systems.

Step 5. Reboot SynetoOS 6

reboot