GELI encryption and HDD critical temperature

Erich Dollansky oceanare at
Tue Feb 19 09:35:38 UTC 2008


this problem is caused by how the drives are installed in the machine.

Can you add a fan?


s.g. wrote:
> Guys,
> I notice occasional overheating of my GELI-encrypted hard drives 
> followed by the reboot.
> This happens when there is heavy activity on the drive - eg when trying 
> to dump partitions.
> There are 4 drives i have, three encrypted and fourth is plaintext.
> According to smartctl -a, the temperature of the encrypted drives is 
> ~59C. The temperature of the unencrypted drive is, however,  ~41C, 
> according to the same smartctl -a.
> All the four drives in question are Seagate ST3400620AS/3.AAC, GELI 
> encryption is default AES, no data authentication. This is on 
> 6.2-RELEASE-p8.
> Am I right assuming  GELI encryption is the reason for such a "global 
> warming"?
> Thanks in advance,
> Grigorian
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