Re: odd selftest log on an OCZ VERTEX PLUS SSD

Richard Flint wrote:
>
> hi,
>
> Yes, an --xall using dsat,12 reports things like
>
> ATA_READ_LOG_EXT (addr=0x11:0x00, page=0, n=1) failed: 48-bit ATA 
> commands require SAT ATA PASS-THROUGH (16)
>
>
> but using --xall dsat,16 the output is interspersed with things like:
>
> Read SMART Data failed: scsi error aborted command
>
> === START OF READ SMART DATA SECTION ===
>
> SMART Status command failed: scsi error aborted command
>
> SMART overall-health self-assessment test result: UNKNOWN!
>
> SMART Status, Attributes and Thresholds cannot be read.
>
> Read SMART Log Directory failed: scsi error aborted command
>
>
> Does this mean 48bit commands are not supported on my machine? if they 
> aren't supported, how come reading the SATA Phy Event Counter log works?
>
>

The driver/firmware of this (which?) controller is actually broken. It 
apparently requires -d sat,12 for some (like SMART READ DATA) 28-bit ATA 
commands and report failure if -d sat,16 is used. Other 28-bit commands 
(like IDENTIFY) apparently work with -d sat,16. This violates the SAT 
standard and is currently not supported by smartctl.

BTW: A problem with your problem report was that info was provided in 
too small snippets. Next time, please provide the full smartctl output 
as a text/plain attachment.

Thanks,
Christian


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