[ URL      ] : https://notes.fr/2023/08/09/Elements-in-grown-defect-list/
[ CATEGORY ] : /Stockage/Administration
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[ AUTHOR   ] : 4L1N3

Elements in grown defect list

Excerpt from the manual of smartctl :

smartctl is a command that control and Monitor Utility for SMART Disks : smartctl controls the Self-Monitoring, Analysis and Reporting Technology (SMART) system built into most ATA/SATA and SCSI/SAS hard drives and solid-state drives.

The purpose of SMART is to monitor the reliability of the hard drive and predict drive failures, and to carry out different types of drive self-tests.

When you use smartctl command, you can see a high rate of Elements in grown defect list :

# /usr/sbin/smartctl -a /opt/sda1
[...]
Elements in grown defect list: 12
[...]

Or 

# /usr/sbin/smartctl -a -d cciss,3 /dev/disk/by-id/<disk-ID>
[...]
Elements in grown defect list: 12
[...]

This means that the disk has bad sectors, probably due to wear.
If the rate increases gradually, it is advisable to change this disk.

Documentation

https://www.truenas.com/community/threads/impending-disk-failure-elements-grow-defect-list.104551/

Remerciements

Martin B.

Merci à Martin B.


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