Thank you very much. I will try to adjust IS maintenance schedule time
to see if this can help.

I have another reason causing Backup Exchange fail is end of tape error.
My exchange IS is 10G and 6G backup to tape after compression. I have to
update backup tape to read-only everyday to let next backup goes to new
tape. Otherwise I will get following error and backup fail.
Is this a bug on Exchange Agent or I did something wrong. If IS is
bigger than 10G(My tape is 10G each). How can I do?


07/18/1999 00:27:43  ANR8263W End of tape detected on 3590 volume C10429
in
                      drive TAPMLB01 (TAP02) of library 3494LIB.
07/18/1999 00:27:43  ANR1411W Access mode for volume C10429 now set to
                      "read-only" due to write error.
07/18/1999 00:27:43  ANR0523W Transaction failed for session 29 for node
                      EXCHNGSVR1_AGENT (WinNTDB) - error on output
storage
                      device.
07/18/1999 00:27:44  ANR7808W CLOSE TAPE C10429 returned exception
CPF4405.
07/18/1999 00:27:56  ANR0403I Session 29 ended for node EXCHNGSVR1_AGENT
                      (WinNTDB).