linux-kernel - Two drives are both sda

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Date:	Fri, 3 Oct 2014 15:49:32 -0700
From:	Michael Bushey <corwin7@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Two drives are both sda

I have two SSD drives that are both sda:

root@dev:~# ls -l /dev/disk/by-id/
total 0
lrwxrwxrwx 1 root root  9 Oct  3 13:39
ata-Samsung_SSD_850_PRO_128GB_S1SMNWAF713081V -> ../../sda
lrwxrwxrwx 1 root root 10 Oct  3 13:39
ata-Samsung_SSD_850_PRO_128GB_S1SMNWAF713081V-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 Oct  3 13:39
ata-Samsung_SSD_850_PRO_128GB_S1SMNWAF713081V-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 Oct  3 13:39
ata-Samsung_SSD_850_PRO_128GB_S1SMNWAF713081V-part3 -> ../../sda3
lrwxrwxrwx 1 root root  9 Oct  3 13:41
usb-HGST_Touro_Desk_Pro_31001310280002201158-0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 Oct  3 13:39
usb-HGST_Touro_Desk_Pro_31001310280002201158-0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root  9 Oct  3 13:39 wwn-0x500253887000a4f1 -> ../../sda
lrwxrwxrwx 1 root root 10 Oct  3 13:39 wwn-0x500253887000a4f1-part1 ->
../../sda1
lrwxrwxrwx 1 root root 10 Oct  3 13:39 wwn-0x500253887000a4f1-part2 ->
../../sda2
lrwxrwxrwx 1 root root 10 Oct  3 13:39 wwn-0x500253887000a4f1-part3 ->
../../sda3

# cat /sys/class/block/sda/device/model
Samsung SSD 850

The wwn drive is a PNY XLR8 240GB SSD. Is there any way I can make it
sdc? I would like to image the PNY drive and try to recover the data
off of it.

The machine seems to be functioning OK off of the Samsung 850 system
drive; I just brought it back up yesterday with the Samsung SSD after
the PNY drive started giving errors.

# uname -a
Linux dev.rm 3.16-2-amd64 #1 SMP Debian 3.16.3-2 (2014-09-20) x86_64 GNU/Linux

Both SSD drives are configured so part1 is EXT4, part2 is swap, and
part3 is ZFS.

I'm not on the mailing list so please CC any responses / further
questions to my email.

Thanks in advance for any help.
Michael Bushey
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