Removing a LUN Clone Pair
This operation enables you to remove secondary LUNs if you want to delete a clone or use secondary LUNs for other purposes. After a secondary LUN is removed from a clone, the data on the primary LUN is no longer synchronized to that secondary LUN.
Prerequisites
Based on the Running Status and Data Status of a clone pair, determine whether the secondary LUN can be removed from the clone. Table 2-14 or Table 2-15 lists the requirements for removing a secondary LUN.
Running Status |
Data Status |
Whether a Secondary LUN Can Be Removed |
---|---|---|
Synchronizing |
Synchronizing |
No |
Queuing |
Inconsistent |
No |
Queuing |
Consistent |
No |
Split |
Inconsistent |
Yes |
Split |
Consistent |
Yes |
Split |
Reverse inconsistent |
Yes |
Normal |
Consistent |
Yes |
Interrupted |
Inconsistent |
Yes |
Interrupted |
Consistent |
Yes |
Interrupted |
Reverse inconsistent |
Yes |
To be recovered |
Inconsistent |
Yes |
To be recovered |
Consistent |
Yes |
To be recovered |
Reverse inconsistent |
Yes |
Reversely synchronizing |
Reversely synchronizing |
No |
Precautions
After a secondary LUN is removed from a clone, the pair relationship between the primary LUN and the secondary LUN is canceled. Therefore, the data on the primary LUN is no longer synchronized to the removed secondary LUN.
Procedure
- Log in to DeviceManager.
- Choose
Data Protection >
Clone.
- Choose the clone from which you want to remove a clone pair, and choose More > Remove Pair.
The Remove Pair from Clone xxx dialog box is displayed. (xxx indicates the name of the clone).
- Remove a clone pair.
- In the Added Secondary LUNs area, select the secondary LUN you want to remove.
- Click
.
The secondary LUN is moved to the Secondary LUNs to Be Removed area.
- Click OK.
The security alert dialog box is displayed.
- Confirm the removal of the secondary LUN.
- Confirm information in the Warning dialog box carefully and select I have read and understand the consequences associated with performing this operation.
- Click OK.
The Execution Result dialog box is displayed, indicating that the operation succeeded.
- Click Close. The clone management page is displayed.