I have two SSDs (both Intel 320 Series SATA II 160GB) as a RAID 1 array on a Dell 1950 server. The drives are attached to an SAS controller.
At this askubuntu link the poster has had success seeing SMART values on a RAID 1 setup.
Trying some of the commands suggested at the link I am getting no SMART values and in fact, as it says, the device lacks SMART capability. It seems unlikely that a standard that has been around for many years is not supported on these Intel SSDs so the failure message may not be accurate. How do I get SMART values through this RAID 1 setup? It seems to make no difference whether I query device /dev/sda, /dev/sda1, or /dev/sda2.
ls /dev/sda*
/dev/sda /dev/sda1 /dev/sda2
Trying the "information" option:
>sudo smartctl -i /dev/sda
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-31-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Vendor: Dell
Product: VIRTUAL DISK
Revision: 1028
User Capacity: 159,450,660,864 bytes [159 GB]
Logical block size: 512 bytes
Logical Unit id: 0x600508e000000000121afe0b0af54004
Device type: disk
Local Time is: Tue Dec 6 19:23:24 2016 EST
SMART support is: Unavailable - device lacks SMART capability.
Trying the "turn SMART on" option:
>sudo smartctl -s on /dev/sda1
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-31-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
unable to fetch IEC (SMART) mode page [badly formed scsi parameters]
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
The question is how can I get SMART values on RAID 1 with a SAS controller to SATA drives on Ubuntu 16.04?
Edit with additional information: The controller is the LSI Logic SAS 1068E-IR which is also identified in the BIOS as a SAS6IR.
