[smartmontools-support] Drive PASSED health check but will not take partition table
doark at mail.com
Tue Aug 22 17:23:25 CEST 2017
On Wed, 16 Aug 2017 17:40:07 +0200
Dan Lukes <dan at obluda.cz> wrote:
> doark at mail.com wrote:
> > I ran a full test of the drive which completed with a read error, yet
> > the drive passed the health check and was more healthy than the also
> > refurbished Seagate model. I rewrote the partition table and resyned
> > the array and rebooted to find that the partition table was again
> > lost. I tried this a third time with the same result.
> > So, what I want to know is:
> > 1: What killed this drive?
> Well, simple question may not have simple answer. Moreover, some
> informations are missing - for example what you mean "partition table
> was lost" (damaged content ? empty at all ? unreadable ?).
The partition table was unreadable. The drive showed up in gparted as a
blank (virgin) hard drive.
> According data you disclosed, WD identified Uncorrectable read error of
> physical sector starting on LBA 103890953. It seems not to be partition
> table sector, thus all I can tell is - no records related to partition
> table issue, no data for analysis.
That is why I'm confused.
I thought my problem might have something to do with the
Raw_Read_Error_Rate of 0x000000000097.
> > 2: Why is the health check passing?
> While SMART protocol itself is standardized, the meaning of values
> reported are vendor specific. Different vendors, different models and
> even different firmware versions have no common standard what disc
> health is or how to test it.
> Se answer to your question is - according tests the Western Digital
> considered appropriate - your disk is not failing.
OK, so the drive does not give a pass or fail value to it's health,
rather that is deduced from the smart data that smartmontools is able to
> > 3:And most importantly, do I need to do anything about the Seagate
> > drive whose health is worse (I continue to use it)?
> I see nothing wrong with data reported by Seagate. Low Power On Hours,
> zero Rellocated Sectors/Event Count as well as Current Pending Sector.
I was concerned about the Seek_Error_Rate and the Raw_Read_Error_Rate.
They are currently 120408357 and 90758872. I've tried looking for
information on what exactly they indicate without much success.
I'm enclosing the latest smart data.
> Im not taking responsibility over your data, but in my hubmle opinion.
> both Hitachi and Seagate looks good.
I would not ask that of you, I'm looking for advice.
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