question about ANR8341I

[fenglimian]

hi all，when I do backup operation，anything is OK，but everytime I try to archive 
something I get the same error：
04/19/04   17:34:16      ANR8341I End-of-volume reached for LTO volume 716ADM.
04/22/04   18:30:21      ANR8341I End-of-volume reached for LTO volume 715ADM. 

q vol output as follow：
715ADM                     JW_ARCHIVE      3583CLS        190,734.0      46.5     
Filling 

716adm is about 50%。

Thanks！