Hi Kashyap, > We can test if you have any patch. I'll send a PoC. > SCSI SBC-4 requires that any drive that supports WRITE SAME (unmap=1) > also support ndob=1. That "requirement" is in the feature set normative section. Also, there are lots of pre-SBC4 devices out there. > So a drive supports it if it reports LBWS=1 in the Block Provisioning > VPD page. If not, the drive violates the SBC-4 standard, so it's a > drive problem. I have the lab full of a variety of devices that support the Block Provisioning VPD page and not a single one of them supports NDOB. -- Martin K. Petersen Oracle Linux Engineering
