On 28/01/2010, at 1:18 AM, Jan Ceuleers wrote: > Matt Garman wrote: >>> Is there a way to identify what drive is what? >> >> Sometimes you can infer from dmesg. E.g., type "dmesg | less" then >> scroll until you see where sdb is initialized; it might show the model >> and serial number of the drive. >> >> Another approach is to use smartctl, i.e.: "sudo smartctl -a >> /dev/sdb". This will definitely show you the model and serial number. >> You can also use hdparm for the same effect: "sudo hdparm -I >> /dev/sdb". >> >> I'm sure there's more ways, but those are the first that come to mind. > > I'm guessing that the OP is looking for ways to identify disks without disassembling them all. > > In the networking world, you can ask the system to tell you which network interface is which, by blinking the network LEDs (using ethtool -p). Is there something similar for disks? I used a similar method. I have a SATA enclosure that takes 3 x 5.25" bays and gives me 4 x hot swap SATA bays. As each bay has a power and an activity LED I can do something simple like: dd if=/dev/sdb of=/dev/null The bay that has sdb will have a constantly on activity light. If you don't have enclosures, then this becomes somewhat difficult. -- Steven Haigh Email: netwiz@xxxxxxxxx Web: http://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897 Fax: (03) 8338 0299 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html