Clustering is not necessary in order to provide high availability for the DVA, because the DVA does not require the database access that is required by the MTA and POA. As an alternative to clustering the DVA, you can install the DVA on multiple servers outside the cluster, as described in Scaling Your DVA Installation
in the GroupWise Administration Guide.
However, if you want to include the DVA in the Linux cluster, follow these instructions:
Edit the DVA startup file by adding the --ip switch with the secondary IP address.
For information, see Changing the DVA IP Address or Port Number
in the GroupWise 18 Administration Guide.
Add the following lines to the load and unload scripts following the procedure in Providing New Load and Unload Scripts:
Load script:
In the # Start gwadmin service section, add:
exit_on_error /opt/novell/groupwise/admin/gwadminutil services -i -dva /media/nss/cluster/ volume/groupwise/agents/share/dva startup file
In the # Start GroupWise agents section, add:
exit_on_error /etc/init.d/grpwise start gwdva.poname
Unload script: In the # Stop GroupWise agents section, add:
ignore_error /etc/init.d/grpwise stop gwdva.poname