Re: [smartmontools-support] SMART values OCZ SSD

[Christian F. <Chr...@t-...>]

Andrew Reid wrote:
> see:
>
> http://www.ocztechnologyforum.com/forum/showthread.php?t=59144
>
>
> Tony, an OCZ marketing and support person makes the claim that their SSD 
> is fully standards compliant but that they support SSD SMART not HDD SMART.
>
>   

The SMART attributes are in fact 'existing practice' and were never part 
of the ATA standard. The general format was last mentioned in the last 
ATA-3 draft (1997) and removed later. More recent standard only mention 
byte 386-510 of the SMART data structure as "Vendor specific".


>
> Is there a different standard/spec for SSD SMART ???
>   

No. There are drafts for SSD specific log pages. But these are part of 
'Device Statistics' feature introduced with ATA-8 and outside the scope 
of SMART.


>> Offline data collection
>> capabilities: 			 (0x1d) SMART execute Offline immediate.
>> 					No Auto Offline data collection support.
>> 					Abort Offline collection upon new
>> 					command.
>> 					Offline surface scan supported.
>> 					Self-test supported.
>>     

Did you try to start a self-test with smartctl ?


>> Error logging capability:        (0x00)	Error logging NOT supported.
>> 					General Purpose Logging supported.
>>     

The device reports to support GP Logging which is required for Device 
Statistics. Unlike 5.38, the current CVS version of smartctl can read GP 
Log pages on Linux and Windows.

Could you possibly try 'smartctl -l directory ...' with the current CVS 
version of smartctl ?


Cheers,
Christian