[OpenIndiana-discuss] SMART status changing?

Roy Sigurd Karlsbakk roy at karlsbakk.net
Mon Apr 30 20:29:55 UTC 2012


Are you sure? I thought SMART usually reports failure only after a few hundred/thousands sectors have failed and spare sectors are running short…

roy

----- Opprinnelig melding -----
> I've run across this before. What generally happens is a sector will
> become unreadable/failed and get reported by smartctl. If the file
> system is active and the file using that sector is updated/over
> written,
> the drive will reallocate the sector and fall off as a problem within
> SMART. The thing to watch are the sector reporting attributes using
> 'smartctl -a'. Specifically, keep tabs on the following:
> 
> ID# ATTRIBUTE_NAME
> 5 Reallocated_Sector_Ct
> 197 Current_Pending_Sector
> 198 Offline_Uncorrectable
> 
> Its been my experience that occasionally a few sectors will fail and
> become reallocated and it causes little harm. If you see 10-20+
> sectors
> fail at a time then the drive's failure is close at hand and you
> should
> replace the drive ASAP.
> 
> Hope this helps.
> 
> Scott LeFevre
> 
> 
> On Mon, 2012-04-30 at 21:16 +0200, Roy Sigurd Karlsbakk wrote:
> 
> > Hi all
> >
> > I know this question isn't strictly an openindiana question, but I
> > want to give it a shot…
> >
> > I have a few servers with some 300 drives in total with Icinga (a
> > Nagios fork) monitoring the zpool and smartctl health. It sometimes
> > happens that smartctl reports a bad drive, and it's replaced. A few
> > times I've seen smartctl report a bad drive, and then, after a day
> > or two, it suddenly changes its mind, reporting a perfectly healthy
> > drive.
> >
> > Has anyone see this happen?
> >
> > Vennlige hilsener / Best regards
> >
> > roy
> > --
> > Roy Sigurd Karlsbakk
> > (+47) 98013356
> > roy at karlsbakk.net
> > http://blogg.karlsbakk.net/
> > --
> > I all pedagogikk er det essensielt at pensum presenteres
> > intelligibelt. Det er et elementært imperativ for alle pedagoger å
> > unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de
> > fleste tilfeller eksisterer adekvate og relevante synonymer på
> > norsk.
> >
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-- 
Vennlige hilsener / Best regards

roy
--
Roy Sigurd Karlsbakk
(+47) 98013356
roy at karlsbakk.net
http://blogg.karlsbakk.net/
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.



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