How to detect if a disk is an SSD

[Stefano Garzarella]

Hi Brandon, Alexandre and Matthias,
thank you very much for your answers!

I think that camcontrol is the tool that we need.

Best Regards,
Stefano

2016-12-02 2:23 GMT+01:00 Brandon J. Wandersee <brandon.wandersee at gmail.com>
:

>
> Matthias Petermann writes:
>
> > Hello Stefano,
> >
> > one option might be to check the kernel log via
> >
> > % dmesg
> >
> > I would expect some entries like:
> >
> > ada4 at ata0 bus 0 scbus4 target 1 lun 0
> > ada4: <SAMSUNG MZ7LM120HCFD-0E003 GXT3003Q> ACS-2 ATA SATA 3.x device
> > ada4: Serial Number S2NRNXAGC00170D
> > ada4: 150.000MB/s transfers (SATA, UDMA6, PIO 8192bytes)
> > ada4: 114473MB (234441648 512 byte sectors)
> > ada4: quirks=0x3<4K,NCQ_TRIM_BROKEN>
> >
> > which includes the model number / name. Feeding this into Google should
> provide clarity if it is a SSD or not.
>
> camcontrol(8) can be used for more extensive information, as well:
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> # camcontrol identify ada0
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> pass0: <Samsung SSD 840 EVO 250GB EXT0DB6Q> ACS-2 ATA SATA 3.x device
> pass0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 512bytes)
>
> protocol              ATA/ATAPI-9 SATA 3.x
> device model          Samsung SSD 840 EVO 250GB
> firmware revision     EXT0DB6Q
> serial number         S1DBNSADB01138V
> WWN                   50025388a00b2df3
> cylinders             16383
> heads                 16
> sectors/track         63
> sector size           logical 512, physical 512, offset 0
> LBA supported         268435455 sectors
> LBA48 supported       488397168 sectors
> PIO supported         PIO4
> DMA supported         WDMA2 UDMA6
> media RPM             non-rotating
>
> Feature                      Support  Enabled   Value           Vendor
> read ahead                     yes      yes
> write cache                    yes      yes
> flush cache                    yes      yes
> overlap                        no
> Tagged Command Queuing (TCQ)   no       no
> Native Command Queuing (NCQ)   yes              32 tags
> NCQ Queue Management           no
> NCQ Streaming                  no
> Receive & Send FPDMA Queued    yes
> SMART                          yes      yes
> microcode download             yes      yes
> security                       yes      yes
> power management               yes      yes
> advanced power management      no       no
> automatic acoustic management  no       no
> media status notification      no       no
> power-up in Standby            no       no
> write-read-verify              yes      no      0/0x0
> unload                         no       no
> general purpose logging        yes      yes
> free-fall                      no       no
> Data Set Management (DSM/TRIM) yes
> DSM - max 512byte blocks       yes              8
> DSM - deterministic read       no
> Host Protected Area (HPA)      yes      no      488397168/488397168
> HPA - Security                 no
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> --
> ::  Brandon J. Wandersee
> ::  brandon.wandersee at gmail.com
> ::  --------------------------------------------------
> ::  'The best design is as little design as possible.'
> ::  --- Dieter Rams ----------------------------------
>



-- 
Stefano Garzarella
Software Engineer

email: s.garzarella at evidence.eu.com
skype: garzarella

Evidence Srl
http://www.evidence.eu.com
Via Carducci 56 - Localita' Ghezzano
56010 S.Giuliano Terme Pisa - Italy
Phone: +39 050 99 11 122
Fax: +39 050 99 10 812