Why is SMART not outputting data?

Question

Debian

Good day.
There is a node with two SATA Disks of 1 TB each.
I want to know how many disks worked before I got hooked on the server, I enter:

smartctl --all /dev/sda

And I see this picture:

smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-4-amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, smartmontools.sourceforge.net
Vendor: Dell
Product: Virtual Disk
Revision: 1028
User Capacity: 999,653,638,144 bytes [999 GB]
Logical block size: 512 bytes
Logical Unit id: 0x600508e000000000ea0d2909e44c2202
Device type: disk
Local Time is: Sun Feb 9 14:18:08 2014 CET
Device does not support SMART
Error Counter logging not supported
Device does not support Self Test logging

Tried various combinations and attributes, and that's it.
Advise what to do?

Answer 1

most likely it's in the sata / sas controller