Solution 1CauseNetwork issues or multiple disconnects in the link enclosure network might have caused the outage. A cable that connects the LINK ports of the enclosures is disconnected.
Action-
Restore high availability by correcting the cause of the outage, if possible:
- Repair network connectivity.
Ensure that all link enclosure network cables are properly connected.
- Reconnect the cable connecting the LINK ports.
-
Bring the enclosure back online.
Use the
appliance maintenance console View details command to identify the appliance for which the status cannot be confirmed. The appliance is identified in terms of its enclosure and appliance bay number.
If the corresponding enclosure or frame link module is offline, powering it on could correct the problem.
-
Move the appliance to an operational enclosure if the enclosure or frame link module cannot be brought back online.
Whenever possible, install clustered appliances in different enclosures to improve fault protection.
Solution 2CauseAn appliance is nonfunctional and high availability cannot be restored.
CAUTION: This procedure requires you to override data integrity protection. Use extreme care when following this procedure.
Action-
Determine the location of both appliances in the appliance cluster. The location is given in terms of the enclosure and appliance bay. The
appliance maintenance console
View details action, from either appliance, can provide this information for the other appliance.
CAUTION: Misidentifying the appliance can result in
unrecoverable data loss.
-
Determine whether each appliance:
-
Select the appliance to activate. Use the following criteria:
If one appliance shows an unsynchronized changes warning, select it.
Select the other appliance if an appliance:
If the lost appliance contained unsynchronized changes, unrecoverable data loss could occur.
-
Ensure the unselected appliance:
IMPORTANT: This step is critical to ensure that both appliances do not become active at the same time. Otherwise, it will be impossible to resynchronize them, and unrecoverable data loss will result.
-
In the
appliance maintenance console of the selected appliance, select
Activate and confirm the action.
For more information, see
"Activate the Synergy Composer manually when it is not highly available" in the chapter
"Appliance maintenance console" in the
HPE OneView User Guide for HPE Synergy.TIP: Refer to the state to monitor progress.