Product and version: VTL6000 V100R003
A cross failover is a phenomenon where two VTL servers with failover enabled take over services of each other. The failover status of the two VTL servers is both 2-READY. The symptom is:
In the navigation tree of the VTL Console, the icons of the two VTL servers in the failover group are red.
Log in to the two VTL servers using a Secure Shell (SSH) tool. Run the sms command to view the failover status. FailOverStatus of both VTL servers is 2(READY).
1. In the navigation tree of the VTL Console, right-click one VTL server in the failover group and choose Failover > Stop Takeover Failover-B from the shortcut menu.
2. In the Virtual Tape Library Console dialog box that is displayed, click Yes. Wait for Failover-B to completely restart.
3. Run the vtl status and sms commands to check the status of Failover-B.
Run the vtl status command to display the status of all modules, and the sms command to display the value of FailOverStatus. If vtl status is OK and FailOverStatus is 1 (up), Failover-B successfully recovers.
4. Right-click the recovered Failover-B VTL server and choose Failover > Stop Takeover Failover-A to recover the other VTL server.
5. Wait 3 to 5 minutes and then perform 3 to check whether Failover-A recovered.
The failover function is enabled for two VTL servers, for example Failover-A and Failover-B. When Failover-A fails, Failover-B automatically takes over Failover-A's services. Later when Failover-A recovers, Failover-B does not automatically switch services back to Failover-A.
If Failover-B fails at this time, Failover-A cannot take over Failover-B's services. Later when Failover-B recovers, a cross failover occurs on the two VTL servers.