Hi I have RS/6000 SP2 with AIX 4.3.3 and Tivoli Stoarge Manager 3.7.0. I have 3590 E11 & 3590 B11 connected to it. I use these drive for TSM use only. For both the drives, I have set Clean option to ASNEEDED at TSM level. However Autoclean is happening only for B11 and not E11 drive. Any guess ? The Atape version is 5.0.2.0 Regards Sachin Ganu