20

How do I find out which motherboard SATA port number is an HDD connected to?

We want to build a hdd copy software based on physical identification of SATA.

Cubiq
  • 1,475
Daxesh
  • 201

5 Answers5

17

lsscsi --verbose will provide output similar to this:

[0:0:0:0]    disk    ATA      TOSHIBA THNSNH12 HTRA  /dev/sda 
  dir: /sys/bus/scsi/devices/0:0:0:0  [/sys/devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0]
[1:0:0:0]    disk    ATA      WDC WD2003FZEX-0 01.0  /dev/sdb 
  dir: /sys/bus/scsi/devices/1:0:0:0  [/sys/devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0]
[2:0:0:0]    disk    ATA      WDC WD3001FAEX-0 01.0  /dev/sdc 
  dir: /sys/bus/scsi/devices/2:0:0:0  [/sys/devices/pci0000:00/0000:00:1f.2/ata3/host2/target2:0:0/2:0:0:0]
[3:0:0:0]    cd/dvd  Optiarc  DVD RW AD-7280S  1.01  /dev/sr0 
  dir: /sys/bus/scsi/devices/3:0:0:0  [/sys/devices/pci0000:00/0000:00:1f.2/ata4/host3/target3:0:0/3:0:0:0]

which provides the ataN port which can matchup with information found in the syslog. Useful if you are trying to determine where an error is coming from .

Edit: If which lsscsi provides no output you need to install it:

sudo apt-get install lsscsi

Further Edit:

This probably goes without saying, but of course you can filter the output with grep to locate what you are interested in for instance if you find an error like ata4: status: { DRDY ERR } you could simple issue the command

lsscsi --verbose | grep -P1 -A1 ata4 Which would produce output like this:

[3:0:0:0]    cd/dvd  Optiarc  DVD RW AD-7280S  1.01  /dev/sr0 
  dir: /sys/bus/scsi/devices/3:0:0:0  [/sys/devices/pci0000:00/0000:00:1f.2/ata4/host3/target3:0:0/3:0:0:0]

Which would indicate that the device (Optiarc DVD RW AD-7280S on ata4) wasn't ready when called upon.

This should be enough information to allow you to locate the troubled device.

Elder Geek
  • 36,752
13

sudo lshw -c storage -c disk gives you a lot of info regarding your hard-drives. Eg:

 *-scsi:1
      physical id: 2
      logical name: scsi2
      capabilities: emulated
    *-disk
         description: ATA Disk
         product: ST31000524AS
         vendor: Seagate
         physical id: 0.0.0
         bus info: scsi@2:0.0.0
         logical name: /dev/sdb
         version: JC4B
         serial: 5VPDESM5
         size: 931GiB (1TB)
         capabilities: gpt-1.00 partitioned partitioned:gpt
         configuration: ansiversion=5 guid=d6e747d2-3e9c-47c2-865b-44f8d7cc5808 sectorsize=512
       *-volume
            description: EXT4 volume
            vendor: Linux
            physical id: 1
            bus info: scsi@2:0.0.0,1
            logical name: /dev/sdb1
            logical name: /mnt/hdd0
            version: 1.0
            serial: 2de34713-f0ee-4a12-9214-21a5431a7b7b
            size: 931GiB
            capabilities: journaled extended_attributes large_files huge_files dir_nlink recover extents ext4 ext2 initialized
            configuration: created=2013-07-20 14:14:09 filesystem=ext4 lastmountpoint=/mnt/hdd0 modified=2013-08-29 21:29:24 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2013-08-29 21:29:24 state=mounted

I suspect physical id gives you the physical port the HDD is connected to (2 in this case).

Cubiq
  • 1,475
5

sudo apt-get install lsscsi

tech@tech:~$ lsscsi
[2:0:0:0]    disk    ATA      SAMSUNG HD040GJ/ ZG10  /dev/sda
[3:0:1:0]    disk    ATA      WDC WD3200AAJS-0 03.0  /dev/sdb
[4:0:0:0]    disk    Generic- Compact Flash    1.00  /dev/sdc
[4:0:0:1]    disk    Generic- SM/xD-Picture    1.00  /dev/sdd
[4:0:0:2]    disk    Generic- SD/MMC           1.00  /dev/sde
[4:0:0:3]    disk    Generic- MS/MS-Pro/HG     1.00  /dev/sdf

this utility will give you ATA port 0 to 3.

Elder Geek
  • 36,752
Rahim
  • 59
2

Probably too late for this question, but 10 years later I had the same need:

I always have an issue to find out quickly which disk is which port on my desktop. So, given I have labeled cables on disk side (they are very difficult to follow from motherboard), I wrote a quick and dirty script, which uses /dev/disk/by-path information :

#!/usr/bin/env bash
#
# output sata/disk relationship.

find /dev/disk/by-path/ -regex '^.ata-[0-9]+$' -print |
    while read -r file; do
        sata=$(echo "$file" | sed -n 's|.(ata)-([0-9]).|s\1\2|p')
        drive=$(readlink -f "$file")
        printf "%s %s \n" "$sata" "${drive##*/}"
    done | sort
exit 0

Output example:

$ sata2disk.sh 
sata1 sda 
sata2 sdb
braoult
  • 292
1

sudo lshw -c storage -c disk gives you a lot of info regarding your hard-drives.

The bus info fields give you the physical port each HDD/SSD is connected to (ports 0 and 2 in this case).
Note that the number may differ if your system has multiple SATA controllers (on-board or via extension cards).

For example:

  *-scsi:0
       physical id: 1
       logical name: scsi0
       capabilities: emulated
     *-disk
          description: ATA Disk
          product: Samsung SSD 840
          physical id: 0.0.0
          bus info: scsi@0:0.0.0
          logical name: /dev/sda
          version: BB6Q
          serial: S1DBNSAF791657P
          size: 232GiB (250GB)
          capabilities: partitioned partitioned:dos
          configuration: ansiversion=5 sectorsize=512 signature=d6cfe005
  *-scsi:1
       physical id: 2
       logical name: scsi2
       capabilities: emulated
     *-disk
          description: ATA Disk
          product: CT500MX500SSD1
          physical id: 0.0.0
          bus info: scsi@2:0.0.0
          logical name: /dev/sdb
          version: 010
          serial: 1810E132AC1E
          size: 465GiB (500GB)
          capabilities: partitioned partitioned:dos
          configuration: ansiversion=5 sectorsize=4096 signature=0007569c
n.st
  • 1,470