<div dir="ltr">attached.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jun 29, 2019 at 12:37 PM Christian Franke <<a href="mailto:Christian.Franke@t-online.de">Christian.Franke@t-online.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Robert Fantini wrote:<br>
> Hello<br>
><br>
> We just received a used INTEL 2TB Nvme . Below is smartctl output.<br>
><br>
> These are very high, could the math be incorrect?<br>
> Data Units Read: 30,035,247,693 [15.3 PB]<br>
> Data Units Written: 11,932,680,343 [6.10 PB]<br>
<br>
From NVMe specs (same in 1.0 to 1.4):<br>
"Data Units Read: Contains the number of 512 byte data units the host <br>
has read from the controller... This value is reported in thousands <br>
(i.e., a value of 1 corresponds to 1,000 units of 512 bytes read) ..."<br>
<br>
Math looks good:<br>
<br>
$ echo 'scale=1; 30035247693 * 512 * 1000 / (1000^5)' | bc<br>
15.3<br>
<br>
To check whether smartctl interprets raw data correctly, please provide <br>
output of<br>
smartctl -r ioctl,2 -i -A /dev/nvme0<br>
as an attachment.<br>
<br>
Thanks,<br>
Christian<br>
<br>
> PS: thank you for the great tool.<br>
PS: You're welcome.<br>
<br>
</blockquote></div>