This is not a task that I do very often, but when I do, I seem to forget the “gotchas” in this process. Documentation is not cohesive, so below are my steps to follow.
**If you have RecoverPoint 3.5 SP1 or later and the VNX splitter with a VNX running OE for Block 05.32 or later exist at all copies, you can use Dynamic LUN Resizing instead. See the Recoverpoint Administrator Guide page 188.**
- EMC VNX 5500 (Production)
- EMC NS-120 (DR)
- VMware Site Recovery Manager (Both sides)
- VMware vCenter/vSphere 5.5 (Both Sides)
- EMC Recoverpoint Appliances (HW Version 5, SW Version 4)
- Disable RP Group, remove replication
- Resize Storage LUNs on both sides
- Resize Storage VMFS volumes in vCenter
- Add Replication back and Enable RP Group
- A full sweep will occur and all of the data will most likely be re-replicated.
The more detailed steps may be different in your situation. For instance, you may have direct attached LUNs to VMs or Physical machines in lieu of VMFS on the LUNs.
- Login to the Recoverpoint GUI (Unisphere)
- Click Protection > Manage Protection.
- Click your Consistency Group (CG) that contains the replicated LUN you want to change.
- Click Group Policy tab.
- Under External Management, change “Managed By” to Recoverpoint and click Apply.
- Back on the main Status tab for your CG, click “Disable Group” at the bottom.
- Select the Replication Sets tab and select the replication set that contains the LUN in question.
- Click Remove Replication Set and choose yes to confirm.
- Now in a new browser window, login to the production VNX GUI (Unisphere).
- Resize the LUN in question.
- Now in a new browser window, login to your DR SAN (NS-120 in my case) and resize the LUN to the EXACT same size as your Production LUN.
- Login to vCenter.
- Browse to Hosts and Clusters.
- Find and select a host where the LUN is attached and click Configuration, Storage.
- Find the LUN in question and right click on it, choose Properties.
- Select Increase and follow the wizard of your new volume.
- Now head back over to Recoverpoint (you should still be on the Replication Sets tab).
- Select Add Replication Set.
- Select your Production Volume from the list first and choose “Next Select Copy Volumes”
- Select your DR (copy) volume from the list and choose “Next to Review”.
- Once you’re finished reviewing, choose Finish.
- Choose the Status Tab and click Enable Group.
- Head back to the Group Policy tab, and under External Management, change “Managed By” back to SRM. Click Apply.
If you find a mistake in my steps above, or have any suggestions, please continue the conversation below in the comments section!
More information can be found about Recoverpoint in the Administrator Guide.