How to Set Up Raw-Disk Device Groups for Geographic Edition Systems

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Geographic Edition supports the use of raw-disk device groups in addition to various volume managers. When you initially configure Oracle Solaris Cluster, device groups are automatically configured for each raw device in the cluster. Use this procedure to reconfigure these automatically created device groups for use with Geographic Edition.

For the devices that you want to use, unconfigure the predefined device groups.

The following commands remove the predefined device groups for d7 and d8.

phys-paris-1# cldevicegroup disable dsk/d7 dsk/d8
phys-paris-1# cldevicegroup offline dsk/d7 dsk/d8
phys-paris-1# cldevicegroup delete dsk/d7 dsk/d8

Create the new raw-disk device group, including the desired devices.
Ensure that the new DID does not contain any slashes. The following command creates a global device group, rawdg, which contains d7 and d8.
```
phys-paris-1# cldevicegroup create -n phys-paris-1,phys-paris-2 \
-t rawdisk -d d7,d8 rawdg
```
Verify that the device group rawdg was created.
```
phys-paris-1# cldevicegroup show rawdg
```
On the partner cluster, unconfigure the predefined device groups for the devices that you want to use.
You can use the same DIDs on each cluster. In the following command, the newyork cluster is the partner of the paris cluster.
```
phys-newyork-1# cldevicegroup disable dsk/d5 dsk/d6
phys-newyork-1# cldevicegroup offline dsk/d5 dsk/d6
phys-newyork-1# cldevicegroup delete dsk/d5 dsk/d6
```
Create the raw-disk device group on the partner cluster.
Use the same device group name that you used on the primary cluster.
```
phys-newyork-1# cldevicegroup create -n phys-newyork-1,phys-newyork-2 \
-t rawdisk -d d5,d6 rawdg
```
Use the new group name where a device group name is required.
The following command adds rawdg to the Availability Suite protection group rawpg. The device group to be added must exist and must have the same name, in this case rawdg, on both clusters.
```
phys-paris-1# geopg add-device-group -p local_logical_host=paris-1h \
-p remote_logical_host=newyork-1h rawdg rawpg
```