James, >> However, it doesn't look like we have much to work with since there >> is no ATA Information VPD page exposed. > > it's the fat firmware problem again. However, the driver does know, so > could we persuade a modification of > mpt3sas_scsih.c:_scsih_display_sata_capabilities() to populate a VPD > page? This is gen 1 MPT. I'm a bit irked about disabling WRITE SAME for attached SAS devices. Given how old this controller is, however, it hardly seems worth the hassle to fix this properly. -- Martin K. Petersen Oracle Linux Engineering