>>> "Carlos E. R." <[EMAIL PROTECTED]> 2007-05-08 12:30:55
>>>
>
> The Tuesday 2007-05-08 at 10:22 +0200, Wilfred van Velzen wrote:
>
> > I started the test at about 18:00 (local time), and now at 10:15,
it
> > says:
> >
> > Self-test execution status:      ( 243) Self-test routine in
> > progress...
> >                                         30% of test remaining.
>
> Uau, that's a large disk. Or busy. Usually, it's about two hours or
so.

It's big: 750GB

Not too busy, but busy enough during work hours, because the 30% hasn't
moved yet...

> > The performance of the server seems to be ok, so I let it run for
> > now...
>
> Mine crawls while doing the surface test part. On my older disks I
can
> continue working almost transparently.

None of the users are complaining, so it's fast enough! ;-)

> > > You can also look at the smart log of the disk. If there was an
> > > uncorrectable error and there was a write attempt to that sector,
it will
> > > already be remapped, and thus it will not show again on tests.
> >
> > There is nothing in the logs.
>
> Not the system log, but the smart log that resides in the disk; you
can
> dig it out with "smartctl -a device".

Yes, that was what I meant. I checked with:

smartctl -l error /dev/sdb

and:

smartctl -l selftest /dev/sdb

But that shows the same output as the -a option...

> > > Only the remap counter should show it (Reallocated_Sector_Ct).
> >
> > For /dev/sdb:
> >
> > ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE     
UPDATED  WHEN_FAILED RAW_VALUE
> >   5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail 
Always       -       4
> >
> > /dev/sda:
> >
> >   5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail 
Always       -       0
> >
> > The RAW_VALUE is different on the disk that has the "problem", so
is
> > this the value that you should look at?
>
> Right. If I interpret it correctly, your sda has four sectors
remapped. It

sdb!

> probably can work like this for years without problems, but watch it,
and
> if they keep increasing, you should think about replacing the HD.

I'll keep a close eye on it!

> Disks are designed so they survive bad sectors, it's a normal
ocurrence,
> and they are prepared for that. But if they keep growing, then it
becomes
> a problem or a symptom of failure.

I'll advice the one who controls the money to order a spare one in
advance, so we can replace it if necessary. It's one of the disks in a
raid 1 configuration, so it shouldn't be an immediate problem if one
disk fails...

> > This isn't something that can be fixed on short notice ;), so I
hope
> > you will see this message!
>
> Yep, I noticed, because you sent also a CC to me: in those cases
Pine
> shows a yellow mark :-)

I will keep doing this, then... ;)



Met vriendelijke groet / Best regards,
Wilfred van Velzen


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