How to rebuild vCMP guest VM - Viprion deployment

Hi,

I would like to share official F5 procedure for rebuilding guest VM on given slot.

1. Disable guest (change state to Configured)
2. Remove virtual disk on affected slot.
3. Change guest configuration on host so that guest is not started on slot which got virtual disk removed (this is to ensure that this blade will not become primary and will not perform blank config synchronization to other blades).
4. Affected slot should removed from the list of "Allowed on slot list" option for the guest.
5. Once guest is fully started on all slots with exception to slot which got virtual guest removed - adjust guest configuration so that missing slot is added again to guest's "allowed on slot list". It can be done without shutting down guest.

Point 3 above is very important. After removing vdisk for given slot and setting guest to provisioned new empty vdisk is created and then software installation as specified by Initial image is performed - no configuration is copied at this stage.

During deployment phase system replicates the configuration from primary slot and as well performs software installation to match version active on primary slot.

If for some reason slot with new vdisk containing just Initial image installed and no configuration is selected as primary (rare but possible) empty configuration will be pushed to other slots (being secondary at this time).

As an result all original configuration will be lost for guest.

Piotr