Mailinglist Archive: opensuse (389 mails)

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Re: [opensuse] how to determine actual SATA speed ?
On 21/03/2019 11.37, jdd@xxxxxxxxx wrote:
Le 21/03/2019 à 10:50, Per Jessen a écrit :
On a running system, how do I determine which SATA speed (1.5/3/6) the
disk are currently connected at?

I found this:
https://www.cyberciti.biz/faq/linux-command-to-find-sata-harddisk-link-speed/


None of the methods described work :-(  (dmesg, smartctl,
hdparm,  /sys/class/ata_link/*/sata_spd ).

The boards have an ICH7R controller which is 3Gbps, so I'm pretty
certain about the speed, but surely there is a way to tell?



# hdparm -t /dev/sda

/dev/sda:
 Timing buffered disk reads: 810 MB in  3.00 seconds = 269.92 MB/sec
linux-wacn:/home/jdd # hdparm -T /dev/sda

/dev/sda:
 Timing cached reads:   26492 MB in  1.99 seconds = 13291.32 MB/sec
linux-wacn:/home/jdd #

That's the actual disk speed, not the bus speed.

--
Cheers / Saludos,

Carlos E. R.
(from 15.0 x86_64 at Telcontar)

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