Re: [smartmontools-support] SATA drive reset/disable events on ICH7 ata_piix when polling SMART info

[Mark Lord <kernel@teksavvy.com>]

Tim Small wrote:
> Justin Piszcz wrote:
>> I have seen people report similar problems with the following drives:
>>
>> 1 - Velociraptors (me/others) (don't work at all in raid correctly)
>> http://forums.storagereview.com/index.php/topic/27303-velociraptor-premature-failure-rate-bad-drives-premature-to-market/ 
>>
>> 2 - Green Drives (search this list, there are similar problems) in Linux.
>>
>> I have Caviar Black and WD RE3, they work OK in Linux.
> 
> OK, but:
> 
> 1. Unlike the link you sent, there's nothing suspicious in any of the 
> SMART attributes on any of the four drives - no bad sectors or other 
> errors i.e. the following raw values are all zero on the WD drive which 
> I've been stressing:
> 
> Raw_Read_Error_Rate
> Reallocated_Sector_Ct
> Seek_Error_Rate
> Spin_Retry_Count
> Calibration_Retry_Count
> Reallocated_Event_Count
> Current_Pending_Sector
> Offline_Uncorrectable
> UDMA_CRC_Error_Count
> Multi_Zone_Error_Rate
> 
> ... as well as empty SMART errors logs.
> 
> 
> 2. A few failures were seen with the Seagate drives as well (see last 
> bits of the email), similarly with no apparent bad SMART attributes.
..

I have observed (and reported) the same issue in the past,
on Hitachi and Seagate drives.

The only constants seem to be libata and ICH7/8.
We must have a bug somewhere in there.

-ml