lsblk full disk id output column

lsblk full disk id output column

[Dan MacDonald]

I need a tool that makes it simple to correlate disk device names with
their ids, as can be seen under . The main reason for this is when
administrating ZFS (replacing failed disks etc)  it doesn't deal with
device names (sda, sdb etc) but uses disk id's instead and I often
struggle to marry them up.

I know lsblk already has the "-o model" output column which prints
part of the disk id but I want to see the full disk id (the full
device name, with or without its /dev/disk/by-id prefix) printed under
a column called ID, DISKID or similar.

Thanks

Re: lsblk full disk id output column

[Karel Zak]

On Thu, Jun 06, 2019 at 03:14:35PM +0100, Dan MacDonald wrote:
> I need a tool that makes it simple to correlate disk device names with
> their ids, as can be seen under . The main reason for this is when
> administrating ZFS (replacing failed disks etc)  it doesn't deal with
> device names (sda, sdb etc) but uses disk id's instead and I often
> struggle to marry them up.
> 
> I know lsblk already has the "-o model" output column which prints
> part of the disk id but I want to see the full disk id (the full
> device name, with or without its /dev/disk/by-id prefix) printed under
> a column called ID, DISKID or similar.

Not sure what you mean with ID in this case.

Try 
    lsblk -o+MODEL,WWN 
or
    lsblk -o+MODEL,SERIAL

maybe we can add SERIAL-LONG, because udev differentiate between
SERIAL and SERIAL_SHORT (used by lsblk), and it's MODEL+SERIAL.

See also

    udevadm info /dev/sda


  Karel

-- 
 Karel Zak  <kzak@redhat.com>
 http://karelzak.blogspot.com

Re: lsblk full disk id output column

[Dan MacDonald]

Hi Karel

On Fri, Jun 7, 2019 at 7:17 AM Karel Zak <kzak@redhat.com> wrote:
> Not sure what you mean with ID in this case.
>
> Try
>     lsblk -o+MODEL,WWN
> or
>     lsblk -o+MODEL,SERIAL
>
> maybe we can add SERIAL-LONG, because udev differentiate between
> SERIAL and SERIAL_SHORT (used by lsblk), and it's MODEL+SERIAL.

Neither of those commands provide the output I want.

>
> See also
>
>     udevadm info /dev/sda

That command does though, on my current laptop it prints

S: disk/by-id/ata-Samsung_SSD_840_EVO_250GB_S1DBNSBD945982B

As part of its output and that's exactly the sort of ZFS-friendly
device name I require and was hoping to get from lsblk.

I had never heard of or used udevadm until you mentioned it but it
serves the purpose of translating "regular" Linux disk device names
into their ID equivalents.

Thanks!