I had a USB2 enclosure that I put a disk into and used for a few years. It reports my 3TB drive like so.. usb 1-3.1: New USB device found, idVendor=152d, idProduct=2329 usb 1-3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=5 usb 1-3.1: Product: USB to ATA/ATAPI bridge usb 1-3.1: Manufacturer: JMicron usb 1-3.1: SerialNumber: DC11017369FF usb-storage 1-3.1:1.0: USB Mass Storage device detected usb-storage 1-3.1:1.0: Quirks match for vid 152d pid 2329: 8020 scsi10 : usb-storage 1-3.1:1.0 usbcore: registered new interface driver usb-storage usbcore: registered new interface driver uas scsi 10:0:0:0: Direct-Access WDC WD30 EFRX-68AX9N0 PQ: 0 ANSI: 2 CCS sd 10:0:0:0: Attached scsi generic sg3 type 0 sd 10:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16). sd 10:0:0:0: [sdc] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) sd 10:0:0:0: [sdc] Write Protect is off sd 10:0:0:0: [sdc] Mode Sense: 28 00 00 00 sd 10:0:0:0: [sdc] No Caching mode page found sd 10:0:0:0: [sdc] Assuming drive cache: write through sd 10:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16). sdc: sdc1 sd 10:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16). sd 10:0:0:0: [sdc] Attached SCSI disk I just bought a new USB3 enclosure, and put the same 3TB disk in and saw this instead.. usb 1-1: New USB device found, idVendor=174c, idProduct=5106 usb 1-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 usb 1-1: Product: AS2105 usb 1-1: Manufacturer: ASMedia usb 1-1: SerialNumber: WD-WMC1T1017369 usb-storage 1-1:1.0: USB Mass Storage device detected usb-storage 1-1:1.0: Quirks match for vid 174c pid 5106: 800000 scsi11 : usb-storage 1-1:1.0 scsi 11:0:0:0: Direct-Access WDC WD30 EFRX-68AX9N0 80.0 PQ: 0 ANSI: 5 sd 11:0:0:0: Attached scsi generic sg3 type 0 sd 11:0:0:0: [sdc] 732566646 4096-byte logical blocks: (3.00 TB/2.72 TiB) sd 11:0:0:0: [sdc] Write Protect is off sd 11:0:0:0: [sdc] Mode Sense: 23 00 00 00 sd 11:0:0:0: [sdc] No Caching mode page found sd 11:0:0:0: [sdc] Assuming drive cache: write through sd 11:0:0:0: [sdc] 732566646 4096-byte logical blocks: (3.00 TB/2.72 TiB) sdc: unknown partition table sd 11:0:0:0: [sdc] 732566646 4096-byte logical blocks: (3.00 TB/2.72 TiB) sd 11:0:0:0: [sdc] Attached SCSI disk The difference in sector size reporting means it can't read the partition table. Is this a bug, or a hardware flaw ? The quirk listed for the newer enclosure tells it not to use UAS, but is that a prerequisite for READ CAPACITY(16)? I'd rather not reformat & sync 3TB if I can avoid it. Am I screwed ? Dave -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
