Splitting a Remote Replication CG
This section describes how to split all remote replication pairs in a CG at the same time. A complete point-in-time duplicate is generated for the secondary LUNs of the remote replication pairs, and can be used for report generation, testing, data mining, decision-making, and data recovery.
Precautions
Running Status of the remote replication CG helps you determine whether the remote replication CG can be split, as shown in Table 6-4.
Running Status of a Remote Replication CG |
Splitting Supported or Not (Synchronous Remote Replication) |
Splitting Supported or Not (Asynchronous Remote Replication) |
|---|---|---|
Normal |
√ |
√ |
Split |
√ |
√ |
Interrupted (link down) |
√ (can be performed only on the primary storage system.) |
√ (can be performed only on the primary device of a CG.) |
Interrupted (link up) |
√ |
√ |
To be recovered |
√ |
√ |
Invalid |
× |
× |
Synchronizing |
√ |
√ |
√: Supported ×: Not supported |
||
Procedure
- Choose Data Protection > Protection Entities > Protection Groups > Remote Replication CGs.
- Select the remote replication CG you want to split and click Split.Confirm your operation as prompted.
You can also perform the following operations to split a remote replication CG:
- Click More on the right of the desired remote replication CG and select Split.
- Click the name of the remote replication CG. In the upper right corner of the page that is displayed, click Operation and select Split.
- Choose Services > Block Service > LUN Groups. Click the name of the desired LUN group. On the page that is displayed on the right, click the Protection tab, and then select Remote Replication from the drop-down list. Select the remote replication CG you want to split and click Split.
- Choose Data Protection > Protection Entities > Protection Groups > Protection Groups.
- Click the name of the desired PG. On the page that is displayed on the right, click the Protection tab, and then select Remote Replication from the drop-down list. Select the remote replication CG you want to split and click Split.
- If the value of Remote Replication CGs is not 0, click the value. Select the remote replication CG you want to split and click Split.
