Hello, The SCSI command for LTO-4 drive based encryption (SPOUT opcode = 0xB5) is failing on SLES 9 32-bit only and not on SLES 9 (64- bit), SLES 10,11 or RHEL 4/5 Any idea why this is happening? Error returned is : Invalid field in CDB I am using ioctl() with the deprecated request SCSI_IOCTL_SEND_COMMAND and not the SG3 driver. However, only the SPOUT command is failing and none of the other SCSI commands. For ex: even the SPIN command (to obtain encryption status and capabilities) works. I even updated to SP4. Any suggestions here? Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html