On 27/05/15 13:27, Roman Mamedov wrote: > On Wed, 27 May 2015 14:10:03 +0200 Carsten Aulbert > <Carsten.Aulbert@xxxxxxxxxx> wrote: > >> On 05/27/2015 02:04 PM, Michael Munger wrote: >>> Or, does the OS have access to serial numbers, etc...? >>> >>> I have to guide someone through a drive replacement on the >>> phone, and it would be great if I could tell them exactly which >>> drive to swap out... >> >> If you have direct knowledge, which serial number is where, you >> could use hdparm -I /dev/sdX or smartctl -a /dev/sdX against the >> still reachable drives. > > If /dev/sdc is still present in the system (even if not responding > correctly to hdparm or smartctl anymore), you should be able to > find its serial number from the udev symlink that was registered > earlier, by running e.g.: > > ls -la /dev/disk/by-id/ | grep sdc$ > > Serial number is typically the last piece of the ID, after the > manufacturer name and model number. > Just for info, I've done an ls -al on my by-id directory, and I have no clue whatsoever as to what the serial number is. All my drives appear twice (Seagate Barracudas), there is no manufacturer name that I can see, and while the model number appears in one of the records, there is nothing obvious to indicate whether what follows is the serial number or whether the serial number is part of the other directory entry. Not helped, of course, by the fact I have no clue what the serial number looks like ... :-) ashdown by-id # ls -la total 0 drwxr-xr-x 2 root root 620 May 27 08:10 . drwxr-xr-x 7 root root 140 May 27 08:10 .. lrwxrwxrwx 1 root root 9 May 27 08:10 ata-Optiarc_DVD_RW_AD-7241S -> ../../sr0 lrwxrwxrwx 1 root root 9 May 27 08:10 ata-ST3000DM001-1CH166_W1F4JWRP -> ../../sdb lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F4JWRP-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F4JWRP-part2 -> ../../sdb2 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F4JWRP-part3 -> ../../sdb3 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F4JWRP-part4 -> ../../sdb4 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F4JWRP-part5 -> ../../sdb5 lrwxrwxrwx 1 root root 9 May 27 08:10 ata-ST3000DM001-1CH166_W1F50K0F -> ../../sda lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F50K0F-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F50K0F-part2 -> ../../sda2 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F50K0F-part3 -> ../../sda3 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F50K0F-part4 -> ../../sda4 lrwxrwxrwx 1 root root 10 May 27 08:10 ata-ST3000DM001-1CH166_W1F50K0F-part5 -> ../../sda5 lrwxrwxrwx 1 root root 11 May 27 08:10 md-name-ashdown:0 -> ../../md126 lrwxrwxrwx 1 root root 11 May 27 08:10 md-uuid-39b62a86:885bf50d:33f360cf:a409bd11 -> ../../md126 lrwxrwxrwx 1 root root 11 May 27 08:10 md-uuid-42514e8a:2d127c98:7c2f52fe:60835b32 -> ../../md127 lrwxrwxrwx 1 root root 11 May 27 08:10 md-uuid-69270eac:a840f6e7:0199064b:d5863c5d -> ../../md125 lrwxrwxrwx 1 root root 9 May 27 08:10 wwn-0x5000c50072af4400 -> ../../sdb lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c50072af4400-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c50072af4400-part2 -> ../../sdb2 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c50072af4400-part3 -> ../../sdb3 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c50072af4400-part4 -> ../../sdb4 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c50072af4400-part5 -> ../../sdb5 lrwxrwxrwx 1 root root 9 May 27 08:10 wwn-0x5000c500737a98a4 -> ../../sda lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c500737a98a4-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c500737a98a4-part2 -> ../../sda2 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c500737a98a4-part3 -> ../../sda3 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c500737a98a4-part4 -> ../../sda4 lrwxrwxrwx 1 root root 10 May 27 08:10 wwn-0x5000c500737a98a4-part5 -> ../../sda5 Cheers, Wol -- 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
