The VRG VM Fails

1

Locate the VRG failure cause by following the alarm help.
Check whether the alarm help can help remove the VRG failure.

If yes, no further action is required.
If no, go to 3.

Log in to FusionCompute at the production site. For details, see Logging In to the FusionCompute in the FusionCompute V100R005C00 Software Installation Guide.
Select VM and Template.
The VM and Template page is displayed.

Select the VRG VM and choose Operation > Stop.
Stop the VRG VM as prompted. When the VM state becomes Stopped, the VM is successfully stopped.

Log in to OceanStor ReplicationDirector and click Settings.

The Settings page is displayed.


In the navigation tree on the left, choose Resource Mapping > VRG.

The VRG page is displayed.


Select the faulty VRG. In the Protected VM area, select the VM in the VRG. Click Move and select Force Remove.
Move the VM in the VRG to another normalVRG.

In the VRG list, select a VRGto which the VM is moved. Click Start and choose Consistency verification to start DR.

Other related questions:
The logcache Disk of the VRG Fails
Log in to the FusionCompute at the production site. For details, see Logging In to the FusionCompute in the FusionCompute V100R005C00 Software Installation Guide. Select VM and Template. The VM and Template page is displayed. Select the VRG VM and choose Operation > Stop. Stop the VRG VM as prompted. When the VM state becomes Stopped, the VM is successfully stopped. Log in to OceanStor ReplicationDirector and click Settings. The Settings page is displayed. In the navigation tree on the left, choose Resource Mapping > VRG. The VRG page is displayed. Select the faulty VRG. In the Protected VM area, select the VM in the VRG. Click Move and select Force Remove. Move the VM in the VRG to another VRG. In the FusionCompute , detach the logcache disk from the VRG VM. For details. see Detaching a Disk from a VM in the FusionCompute V100R005C00 Storage Management Guide. The logcache disk of the VRG is the second disk whose capacity is 100 GB. Attach a new logcache disk to the VRG VM. For details. see Attaching a Disk to a VM in the FusionCompute V100R005C00 Storage Management Guide. In the FusionCompute, choose Operation > Start in the line where the VRG VM resides. Start the VRG VM. When the VM state becomes running, the VM is successfully started.

What Can I Do If a VRG VM Becomes Faulty in a Patched FusionCompute System, and Need to Add a New VRG VM?
1.Add the new VRG VM, install the VRG software of an unpatched version first. 2.Patch the VRG VM independently to upgrade it to the same version of the current system.

Introduction to the VRG
For host replication disaster recovery, a Virtual Replication Gateway (VRG) is used. A VRG performs the following functions: 1. Aggregates, compresses, and encrypts VM I/O data and transmits the data to the remote site. 2. Receives data from the remote site and transmits the data to the specified host. 3. Provides management interfaces for delivering replication policies and querying statuses. 4. Ensures disaster recovery performance. Only one VRG VM can be deployed on a host. It is recommended that a VRG provide disaster recovery for a maximum of 150 VMs. The maximum write IOPS is 550. After a VRG VM is created, be aware of the following: 1. The VRG VM-related configurations (CPU, memory, disks, and network adapters) and attributes must not be modified. 2. Capacity expansion, capacity reduction, disk mounting, disk unmounting, storage migration, and VM migration must not be performed. 3. The VRG VM does not support clone and must be installed using a template. 4. The VRG VM does not support snapshots and restoration or VM backup and restoration. 5. You can start, restart, or stop VRG VMs only during VRG VM maintenance.

The VM Fails in BCManager
1.Locate the VRG failure cause by following the alarm help. The VRG network elements are offline: find the reason of the VRG elements are offline, to restore the VRG network elements to on line. The VRG links are down: reset the network adapter that communicates with the VRG of the peer site and restore the VRG. Other reasons: go to 2. 2.Check whether the alarm help can help remove the VRG failure. If yes, no further action is required. If no, go to 3. 3.Log in to FusionCompute at the production site. For details, see Logging In to the FusionCompute in the FusionCompute V100R005Cxx Software Installation Guide. 4.Select VM and Template. The VM and Template page is displayed. 5.Select the VRG VM and choose Operation > Stop. Stop the VRG VM as prompted. When the VM state becomes Stopped, the VM is successfully stopped. 6.Log in to OceanStor BCManager and click Settings. The Settings page is displayed. 7.In the navigation tree on the left, choose Resource Mapping > VRG. The VRG page is displayed. 8.Select the faulty VRG. In the Protected VM area, select the VM in the VRG. Click Move and select Force Remove. Move the VM in the VRG to another normalVRG. 9.In the VRG list, select a VRGto which the VM is moved. Click Start and choose Consistency verification to start DR.

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