Seagate - SMART Prefailure Attribute

ricardoj

Member
Oct 16, 2018
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Sao Paulo - Brazil
I hope this helps someone else.

After building a new PVE server I noticed some smartd errors but testing the disks using smartctl does not show any problem.

I found these 2 links about Seagate errors :

- https://ubuntuforums.org/showthread.php?t=2348858

- http://www.users.on.net/~fzabkar/HDD/Seagate_SER_RRER_HEC.html

The errors I see :

=========================
Aug 29 09:50:32 pve-02 smartd[3580]: Device: /dev/sdb [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 116 to 117
Aug 29 10:50:32 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 117 to 118
Aug 29 10:50:33 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 117 to 118
Aug 29 12:20:32 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 118 to 119
Aug 29 12:20:32 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 65 to 64
Aug 29 12:20:33 pve-02 smartd[3580]: Device: /dev/sdb [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 117 to 118
Aug 29 12:20:33 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 118 to 119
Aug 29 12:20:33 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 65 to 64
Aug 29 12:20:33 pve-02 smartd[3580]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 35 to 36
Aug 29 12:20:33 pve-02 smartd[3580]: Device: /dev/sdb [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 117 to 118
=========================

So from the above links, looks like there is no error at all.

Regards,

Ricardo Jorge
 
Yes, you can safely ignore those attributes. If you don't want them filling your logs, modify your /etc/smartd.conf with something like:
Code:
# Prepend any line with DEVICESCAN with '#' to comment it out.
#DEVICESCAN 

#Append to bottom of the file for YOUR specific drives:
DEFAULT -a -R 5! -I 1 -I 9 -I 190 -I 194 -I 195 
/dev/sda -d sat
/dev/sdb -d sat
# and so on

This tells smartd to monitor all attributes, report attribute 5 as a raw value, and Ignore attributes 1, 9, 190, 194 and 195. Don't forget to restart smartd with systemctl restart smartd.service.
 

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