recover a database to a machine with same hostname but different IP address

Hi folks,

I have a situation where having two different SAP servers with same hostname but different IP address. One located in Production Data Center and the other on DR. The reason why the server in DR has same hostname as in the Production Data Center is to have an easy setup from the application side for the DR purpose (according to the SAP team). My questions:

1. What would be the best practice for this when restoring database to the DR location? So far I have created an alias name for the server located in DR when registering in the Networker client resources. Add the alias hostname in the the /etc/hosts of the networker master server & client. It's been working so far when restoring from the server located in DR, although I have seen a warning message that the server located in Data Production Center (let's name it abc) conflicting with server located in DR (let's nameit abcDR) in the NSR database.

2. When I tried to install and configure the abcDR server as storage node for the SN managing device for clone, I got an error like this :

Call to lg_getaddrinfo() failed with host: Error 0

05/20/18 22:54:42.531047 RPC Authentication: Client failed to obtain RPCSEC_GSS credentials: Authentication error; why = Server rejected credential

05/20/18 22:54:42.531138 Could not get a session key for GSS authentication.  Perhaps this authentication method is not allowed/supported by both the local and remote remote machines.

05/20/18 22:54:42.531787 Failed to create lgto_auth credential for RPCSEC_GSS: Could not get session key from abc for GSS authentication with abcDR: Authentication error; why = Server rejected credential

05/20/18 22:54:42.531874 Received mmd binding information: mmd host abcDR, prog 390104, vers 205

05/20/18 22:54:42.531906 Connecting to nsrmmd on host abcDR (prog 390104, vers 205)...

05/20/18 22:54:42.532005 DNS lookup failed for abcDR: node name or service name not known

05/20/18 22:54:42.532249 Failed to connect to mmd (prog 390104, vers 205) on `abcDR': Failed to connect to host 'abcDR': Unknown host

98519:nsrrecopy: Unable to setup direct save with server tbssvr-emcbck: Failed to connect to storage node on abcDR: Failed to connect to host 'abcDR': Unknown host.

98520

What would be the best practice so I can use this abcDR as a destination storage node managing the clone pool?

additional info:

- device using ddboost (DFC)

- clone figure :

rd=abc:dddc_ddboost_device1 -> rd=abcDR:dddrc_ddboost_device1

Appreciate for any inputs and comments.

BR,

Martin