Product Version: 6.0
Last Modified: 04 January 2016
Problem
EC2 instance processing fails. The following error message appears:
An error has occurred while backing up/replicating/recovering one or more volumes of the instance.
Possible Cause
DNS Issues
- There might be a problem with resolving DNS names on the Transporter machine.
- A Transporter might have multiple IPs, with some of them unreachable by another Transporter.
Make sure that:
- The Transporters can be pinged from the Director or another Transporter (using both DNS name and IP).
- If ping fails, edit the HOSTS file on the Transporter machine and specify the proper DNS resolution rules.
Closed Ports
NAKIVO Backup & Replication requires the following TCP ports to be open for successful instance processing:
TCP Port # (Default) | Where | Description |
---|---|---|
4443 | Director | Used to access the Director web UI. Must be open on the Director machine. |
9446 | Transporter | Used by the Director and Transporters to communicate with the Transporter. Must be open on the Transporter machine. |
9448-10000 | Transporter | Used by Transporters for cross-Transporter data transfer. Must be open on the Transporter machine. |
Verify that:
- The required ports are not used by other applications.
- The required ports are not blocked.
- The ports are accessible from the appropriate endpoints.
Resources Outage
- The source or target Transporter might be disconnected or powered off.
- AWS might be temporarily unavailable in the source or target region/availability zone.
Make sure all Transporters are available and AWS is available.