When Arcserve UDP 6.5 is used in the Linux environment on the Virtual Server, the event that acquisition of backup rarely fails has been confirmed. As confirmed by us, it seems that the connection against the metadata service of Virtual Server occurs when Arcserve backup job was executed, and the backup job failed due to this connection.
Customers should take following actions.
Target
Backup with Arcserve UDP 6.5 in Linux environment on Virtual Server.
Cause
The cause should exist in the connection specification against the metadata service of Virtual Server, which has been added from Arcserve UDP 6.5.
We confirmed that the backup job is successfully completed with this connection shut-off.
We are requesting to Arcserve that they confirm and improve this issue.
Action
When you launch the backup job, you should shut off the connection against the metadata service following below procedure.
(Connection against the metadata service occurs only at instance startup, so even if this action is done, there is no impact on connection against the metadata service)
- How to shut off the connection against the metadata service.
#sudo iptables –A OUTPUT –d 169.254.169.254 –j DROP
- How to resume the connection against the metadata service.
#sudo iptables –D OUTPUT –d 169.254.169.254 –j DROP
Note
Please note that iptables setting is initialized when the instance is restarted and the shut-off setting is erased.
In addition, Arcserve UDP 6.5 has the pre-script function that automatically executes commands before running the backup job. For details, please refer to the product manual.