Hi, The format of a device class is set to "drive" and "query drive" shows the read and write format is "3592C,3592". The question is when does TSM uses the compressed format? In a TSM 5.3 system, almost all volumes are 300GB (q vol) except one of them. I cannot explain why TSM have not treated this one like other volumes while cartridges are of the same type.
Thanks
