we have two new IBM HANA nodes and in the default installation from IBM have all nodes the same HANA hostname
Now the problem
two nodes with the same hostname are not really perfect for an DEV and PRD landscape.
Solution which i search
i want a best practice howto for chancing the hostname of a already installed HANA node
Thanks for your ideas
the problem is solved.
Solution: (see HANA Admin Guide marker 14.2.1 Configuring the Primary System)
The HDB should be running!
use root user
change the name of the node from hananode01 to hananode02 (hdbrename look for the host if available)
./hdbrename --hostmap hananode01=hananode02
the HDB automatically restarts and works
New problem after host rename (see 1828631) Note 1828631 - HANA Studio shows the Manufacturer "unknown"
The Hardware Manufacturer are unknown
(as root) mv /usr/sap/<SID>/SYS/global/hdb/install/hwinfo/bios_hananode01.txt /usr/sap/<SID>/SYS/global/hdb/install/hwinfo/bios_hananode02.txt
(as SIDADM) HDB restart
After this the world order is changed