SMART disabled on new MacBook Pro 13 Retina (ForceTouch) I just wanted to see some of the SSD parameters on my freshly purchased MacBook Pro retina and found out that SMART support is obviously disabled by default.

Is this intended and if so, why? I'm using smartmontools to read out the information…

&gt; $ smartctl -a /dev/disk0                                                     
smartctl 6.4 2015-06-04 r4109 [x86_64-apple-darwin14.3.0] (local build)
Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     APPLE SSD SM0256G
Serial Number:    *censored*
LU WWN Device Id: *censored*
Firmware Version: BXW1JA0Q
User Capacity:    251,000,193,024 bytes [251 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    Solid State Device
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ATA8-ACS T13/1699-D revision 4c
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Thu Jul  2 08:58:52 2015 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Disabled


EDIT:

It would be great if someone else could also confirm that SMART is disabled by default. You simply have to install smartmontools via brew.

brew install smartmontools


and then check the status via

smartctl -a /dev/disk0 


UPDATE:

Without changing anything, I noticed today that it apparently switched itself to enable. I'm not sure when this happened but I installed several Mac OS X updates, so probably this was fixed by (at least) one of them. Here is the new output:

=== START OF INFORMATION SECTION ===
Device Model:     APPLE SSD SM0256G
Serial Number:    *censored*
LU WWN Device Id: *censored*
Firmware Version: BXW1JA0Q
User Capacity:    251,000,193,024 bytes [251 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    Solid State Device
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ATA8-ACS T13/1699-D revision 4c
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Jan 25 09:09:44 2016 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
You can reenable SMART for a volume by typing the command:

sudo smartctl -s on /dev/disk0