[smartmontools-support] growing Reallocated_Sector_Ct

[Carlos E. R.]

On 2024-06-24 05:22, Eyal Lebedinsky wrote:
> On 23/6/24 21:58, 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
>>
>> Regards
>>
> 
> I know that this model is not great (to say the least). And this one is 
> very old. Problems were expected.
> 
> However my question is more specific. Not doing any writes,
>      Is the selftest the cause of the increasing Reallocated_Sector_Ct?

When that model explodes, it degrades on its own from day to day.

-- 
Cheers / Saludos,

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

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