Protection Status
VMs can have the following protection status:
|
Status |
Description |
|
Initializing |
This is short-lasting status when the AROVA creates the replication infrastructure (secondary disks, CG) and updates the CDB accordingly. |
|
Initial Sync |
This is potentially long-lasting status (depending on the VM’s initial data set size) when all data existing before starting protection must be replicated. The VM is not recoverable in this state. |
|
Recoverable |
This is a healthy status. During this time newly generated data are replicated consistently with low RPO (typically, less than 1 minute). |
|
Error |
This status indicates that at least one VM’s disk is experiencing replication failure. The affected VM is not recoverable. Note: If disk replication of all a VM's disks fail simultaneously (i.e., all the disks have the same RPO), the VM will be recoverable even if its replication status is "Error." |
|
Unprotected |
This is the initial status of a VM recovered after a disaster event. In this state, the VM has been correctly recovered but replication/protection for it is not started because its respective target region may be down. |
Table: States of protection status.
- AROVA sets a VM’s Initial Sync, Recoverable and Error statuses according to PDAR’s replication monitoring information, aggregating it across all involved disks.
- An RG’s protection status is the accumulated replication status of all its VMs. RG’s status can be inferred as follows:
- An RG is Recoverable, if all its VMs are recoverable.
- If one or more VMs (but not all) have the status Error, The RG status is considered "Partially Recoverable" (good VMs can still be recovered).
- If at least one VM status is Initial Sync, the RG status will also be Initial Sync.
- If an RG contains VMs with Initial Sync and Error statuses, the RG status may be Partially Recoverable.
- You should manually review the VMs of the RG to determine their individual statuses.
- If a disaster occurs while the RG status is Recoverable, all the VMs of the RG will be recovered consistently.
- However, if a disaster occurs while the RG status is Initial Sync, Partially Recoverable or Error, the impacted VMs will be skipped during failover, but Recoverable VMs will failover normally.
Also see: