help:sysback restore failure

[liming]

Hi all ,my Sysback server is AIX 5.3 ML 02,the Sysback client is AIX 5.3 ML 
02,the sysback version is 5.6.6.1.Every time I wanted to restore the client 
with the same error message like:could not find the boot logical volume and  
attempt to build a default boot logical volume,the client LED code is 0c46.
What's wrong with it?the server OS version lower than the client OS 
version?Thanks!