Re: NVMe support with 6.5

> Please test r4302 if possible.



./smartctl -a /dev/nvme0
smartctl 6.5 2016-04-16 r4302 [x86_64-linux-4.6.0-0.rc3.git2.1.vanilla.knurd.1.fc23.x86_64] (daily-20160416)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number:                       Samsung SSD 950 PRO 256GB
Serial Number:                      S2GLNCAGB30711B
Firmware Version:                   1B0QBXX7
PCI Vendor/Subsystem ID:            0x144d
IEEE OUI Identifier:                0x002538
Maximum Data Transfer Size:         32 Pages
Controller ID:                      1
Power State 0 Maximum Power:        6.50 W (active)
Power State 1 Maximum Power:        5.80 W (active)
Power State 2 Maximum Power:        3.60 W (active)
Power State 3 Maximum Power:        0.0700 W
Power State 4 Maximum Power:        0.0050 W
Number of Namespaces:               1
Namespace 1 Size:                   256 060 514 304 [256 GB]
Namespace 1 Utilization:            152 074 477 568 [152 GB]
Namespace 1 Formatted LBA Size:     512
Local Time is:                      Tue Apr 19 11:02:08 2016 CEST

All info seems okay now :)



Orsiris de Jong

[email protected] - http://www.netpower.fr <http://www.netpower.fr> 

Tel: 06 75 40 48 41

-----Message initial-----
De: Christian Franke <[email protected]>
Envoyé: lundi 18 avril 2016 18:32
À: Ozy de Jong <[email protected]>
Cc: [email protected]
Sujet: Re: [smartmontools-support] NVMe support with 6.5


Ozy de Jong wrote:
> RE: [smartmontools-support] NVMe support with 6.5
> > Smartctl should possibly indicate that these fields are not set instead
> > of printing "0 [0 B]".
>
> Indeed if the capacity field could state something like "not defined", 
> that would make things more clear for the user.
>

Capacity and other unset info is now no longer printed (except if debug 
mode is enabled). Size/Capacity and LBA info is now read from Identify 
Namespace struct. Please test r4302 if possible.

> ...
>
> A last question, command "smartctl -t short /dev/nvme0" gives result:
>
> NVMe device successfully opened
>
>
> I am not aware if NVMe drive manufacturers include selftests, but in 
> the case they don't, a message like "not supported" would be nice to 
> have so.
>

There are no self-tests in the NVMe spec.

Options that are not supported for a specific device type are silently 
ignored. This also the case for many ATA options which do not make sense 
for SCSI/SAS devices. Fixing this would be non-trivial and is left for 
later.

> Looking out for 6.5 release, great work :)
>

Thanks,
Christian


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