> From: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> > Did you try read capacity 16 on it? What happened? (the AS2105 rejects > read capacity 16, so there's no reliable way to deduce the capacity of > drives over 2TB). OK, I had to track down which package contains sg_readcap. The adapter that fails gives this output: # sg_readcap --16 /dev/sdb bad field in READ CAPACITY (16) cdb including unsupported service action The adapter that succeeds gives this output: # sg_readcap --16 /dev/sdc Read Capacity results: Protection: prot_en=0, p_type=0, p_i_exponent=0 Logical block provisioning: lbpme=0, lbprz=0 Last logical block address=5860533167 (0x15d50a3af), Number of logical blocks=5860533168 Logical block length=512 bytes Logical blocks per physical block exponent=0 Lowest aligned logical block address=0 Hence: Device size: 3000592982016 bytes, 2861588.5 MiB, 3000.59 GB Dale -- 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