Rename Guest ldom in Primary or Controll Domain

Save the guest domain config into an XML file
# ldm list-constraints -x oldname >/var/tmp/oldname.xml
Shutdown and unbind your guest domain
# ldm stop oldname
# ldm unbind oldname
Copy and edit the XML file to have the new ldom host name (do a replace in vi)
# cp /var/tmp/oldname.xml /var/tmp/newname.xml

// change oldname to newname in line "
# vi /var/tmp/newname.xml

Delete the old guest domain
# ldm destroy oldname
Import the new xml file for the guest domain

# ldm add-domain -i /var/tmp/newname.xml
Bind and start guest domain
# ldm bind newname

# ldm start newname

============ rename Siebel SMJKT-PRSBA01 to SMJKT-PRSBD02 ================
ldm list-constraints -x SMJKT-PRSBA01 > /export/home/admin/SMJKT-PRSBA01.xml
ldm stop SMJKT-PRSBA01
ldm unbind SMJKT-PRSBA01
cp /export/home/admin/SMJKT-PRSBA01.xml /export/home/admin/SMJKT-PRSBD02.xml
vi /export/home/admin/SMJKT-PRSBD02.xml
ldm destroy SMJKT-PRSBA01
ldm add-domain -i /export/home/admin/SMJKT-PRSBD02.xml
ldm bind SMJKT-PRSBD02
ldm start SMJKT-PRSBD02


============ rename HR SMJKT-PRHRA01 to SMJKT-PRHRD02 ================
ldm list-constraints -x SMJKT-PRHRA01 > /export/home/admin/SMJKT-PRHRA01.xml
ldm stop SMJKT-PRHRA01
ldm unbind SMJKT-PRHRA01
cp /export/home/admin/SMJKT-PRHRA01.xml /export/home/admin/SMJKT-PRHRD02.xml
vi /export/home/admin/SMJKT-PRHRD02.xml
ldm destroy SMJKT-PRHRA01
ldm add-domain -i /export/home/admin/SMJKT-PRHRD02.xml
ldm bind SMJKT-PRHRD02
ldm start SMJKT-PRHRD02

Reference :  [How To Rename a guest domain in LDOMs (Doc ID 1459440.1)]