[smartmontools-support] growing Reallocated_Sector_Ct

[Carlos E. R.]

On 2024-06-23 13:58, Eyal Lebedinsky wrote:
> I log the output of 'smartctl -d sat -x /dev/sda' daily. I recently 
> noticed that I see an
> increasing Reallocated_Sector_Ct, so I installed a replacement disk, 
> copied the data across
> and adjusted the mount points. The old disk is still installed but idle 
> and not mounted.
> 
> My issue is I see that Reallocated_Sector_Ct is still growing. iostat 
> shows no write activity.
> The smartd config schedules a short selftest daily.
> 
> Is the selftest the cause of the increasing count?
> I understand that reallocation is something the disk does on a failed 
> write. Are there other reasons?
> 
> If it matters, the disk is an old (2012?) internal 3.5" 3TB:
>      Model Family:     Seagate Barracuda 7200.14 (AF)
>      Device Model:     ST3000DM001-9YN166

The 3 TB Seagates were a very bad lot. Many google references.

-- 
Cheers / Saludos,

		Carlos E. R.
		(from 15.5 x86_64 at Telcontar)

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