Strange attributes on Seagate Constellation ES.3

[Mathew Binkley]

We normally monitor SMART attribute 5 Reallocated_Sector_Ct to predict drive failure. Recently we received a shipment of replacement drives (Seagate Constellation ES.3) that don't appear to have SMART attributes in any version of smartctl, up to and including SVN from 12/18/14.

Is it just that support for these drives hasn't yet been added to smartmontools, or is there something new/peculiar about these drives?

Info:

# ./smartctl -i /dev/sdae
smartctl 6.4 2014-12-13 r4030 [x86_64-linux-3.13.0-43-generic] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor:               SEAGATE
Product:              ST4000NM0023
Revision:             0004
Compliance:           SPC-4
User Capacity:        4,000,787,030,016 bytes [4.00 TB]
Logical block size:   512 bytes
LB provisioning type: unreported, LBPME=0, LBPRZ=0
Rotation Rate:        7200 rpm
Form Factor:          3.5 inches
Logical Unit id:      0x5000c500626b0313
Serial number:        Z1Z5PQ6Z0000C509C0UY
Device type:          disk
Transport protocol:   SAS (SPL-3)
Local Time is:        Thu Dec 18 16:04:45 2014 CST
SMART support is:     Available - device has SMART capability.
SMART support is:     Enabled
Temperature Warning:  Enabled

# ./smartctl --attributes /dev/sdae
smartctl 6.4 2014-12-13 r4030 [x86_64-linux-3.13.0-43-generic] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
Current Drive Temperature:     33 C
Drive Trip Temperature:        60 C

Manufactured in week 37 of year 2014
Specified cycle count over device lifetime:  10000
Accumulated start-stop cycles:  96
Specified load-unload count over device lifetime:  300000
Accumulated load-unload cycles:  127
Elements in grown defect list: 0

Vendor (Seagate) cache information
  Blocks sent to initiator = 2968316052
  Blocks received from initiator = 3752175265
  Blocks read from cache and sent to initiator = 2227814356
  Number of read and write commands whose size <= segment size = 13010546
  Number of read and write commands whose size > segment size = 759449

Vendor (Seagate/Hitachi) factory information
  number of hours powered up = 887.18
  number of minutes until next internal SMART test = 0

[Christian Franke]

The ST4000NM0023 is a SAS disk. SCSI/SAS devices do not provide (S)ATA SMART attributes like Reallocated_Sector_Ct.

If a SCSI/SAS is detected, "smartctl -A" prints the info provided via SCSI protocol (e.g "Elements in grown defect list").