I have discovered that rsync 2.5.6 uses the mkstemp() routine wich do not have a 64bits version into the AIX libc. A very simple workaround to the big files writing rsync pb. is to not use this routine that create files w/ mkstemp() by modifying the "syscall.c" source file at line 154 as following : #if defined(HAVE_SECURE_MKSTEMP) && defined(HAVE_FCHMOD) become #if defined(HAVE_SECURE_MKSTEMP) && defined(HAVE_FCHMOD) && ! defined(_AIX) Hope this will help poor AIX users ;-) Dean, a nostalgic Digital Unix veteran. Digital/Tru64 Unix don't care big files ! -- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.tuxedo.org/~esr/faqs/smart-questions.html