The status from OC show ‘unavailable’ for TSMDR01
Check actlog from TSMDR01 found that there is an error about ANR0418W (IBM-OC-TSMHQ01) password incorrect.
Reset password of IBM-OC-TSMHQ01 by stop OC service @TSMHQ01 server.
remove the serverConnection.properties file

AIX and Linux operating systems: /opt/tivoli/tsm/ui/Liberty/usr/servers/guiServer
Windows operating systems: c:\Program Files\Tivoli\TSM\ui\Liberty\usr\servers\guiServer
Start OC service again.
Login to web manager
Change password of IBM-OC-TSMHQ01 to ‘p@ssw0rd’

@TSMDR01 : dsmadmc
update admin IBM-OC-TSMHQ01 p@ssw0rd