Solution : https://service.sap.com/sap/support/notes/962955 (SAP Service marketplace login required)
Summary :
To use virtual host names in SAP environments, the procedure facilitates system flexibility without extensive reconfiguration or reinstallation, particularly useful for hardware migrations or failover clusters. Primarily applicable to SAP NetWeaver-based software, the steps involve setting up a new IP address and host name for each virtual entity, ensuring complete decoupling from physical servers. It's critical to update DNS or host files accordingly, and utilize tools like niping to test configuration accuracy. Installation or configuration adjustments should align with the SAP installation guides. For communication, avoid TCP alias names within server infrastructure but consider them for user-facing interactions.
Key words :
> saplocalhostfull = < full qualified virtual host, ip addresses <-> tcp/ip host, ip address -> tcp/ip host, decouple end-user communication, resolutions tcp/ip host, corp physhost <ip2> virthost1, tcp network alias names, sap netweaver versions lower, virtualize physical host names, sap server software based
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| 1282975 | Use of virtual TCP/IP host names in Windows |
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| 969660 | 6.20/6.40 Patch Collection Installation : Unix |
| 967123 | SAP NetWeaver 7.0 / Business Suite 2005 SR2: Windows |
| 966416 | Inst. SAP NetWeaver based on Kernel 7.10 - UNIX |
| 921593 | (Outdated) Inst. SAP NetWeaver 7.0 (2004s) SR1 - UNIX |
| 919105 | SAP NetWeaver 7.0 (2004s) SR1 Installation on Windows |
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| 808866 | SAP ECC 5.0 SR1 ABAP Installation on UNIX |
| 786608 | SAP Web AS 6.40 SR1 Java on Windows |
| 785927 | SAP Software on UNIX: OS Dependencies 6.40 SR1 |
| 785925 | SAP Web AS 6.40 SR1 ABAP Installation on UNIX |
| 785888 | SAP Web AS 6.40 SR1 ABAP on Windows |
| 785850 | SAP Web AS 6.40 SR1 Java Installation on UNIX |
| 773830 | FQHN determination in ICM |
| 611361 | Hostnames of SAP servers |
| 360515 | TCP/IP Alias host names in UNC path in Windows 2000 / 2003 |
| 129997 | Hostname and IP address lookup |