Yeah, looks like a Oracle Net problem to me.... RF Robert G. Freeman Oracle Consultant/DBA/Author Principal Engineer/Team Manager The Church of Jesus Christ of Latter-Day Saints Father of Five, Husband of One, Author of various geeky computer titles from Osborne/McGraw Hill (Oracle Press) Oracle Database 11g New Features Now Available for Pre-sales on Amazon.com! BLOG: http://robertgfreeman.blogspot.com/ Sig V1.2 -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Jared Still Sent: Thursday, August 02, 2007 6:28 PM To: litanli@xxxxxxxxx Cc: oracle-l Subject: Re: RMAN connection error Oh, never mind, I see now it was from the target database. On 8/2/07, Jared Still <jkstill@xxxxxxxxx> wrote: On 8/2/07, Li Li < litanli@xxxxxxxxx> wrote: RMAN-00554: initialization of internal recovery manager package failed RMAN-04005: error from target database: ORA-12545: Connect failed because target host or object does not exist What happens if you do this: $ORACLE_HOME/bin/rman target / nocatalog or this: $ORACLE_HOME/bin/rman target sys/xxxx@proddb nocatalog Just to verify which db is causing the error. -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist