HP A.06.11 - Manual (Page 278)

SAP DB/MaxDB cluster-related troubleshooting
In a cluster environment, the environment variable OB2BARHOSTNAME must be defined
as the virtual hostname before performing some procedures run from the command
line (on the client). The OB2BARHOSTNAME variable is set as follows:
UNIX
export OB2BARHOSTNAME=virtual_hostname
Windows
set OB2BARHOSTNAME=virtual_hostname
Integrating SAP DB/MaxDB and Data Protector 278