Re: [opensuse] Error's on raid disk
"Carlos E. R." <robin.listas@telefonica.net> 2007-05-07 14:14:40
The Monday 2007-05-07 at 09:32 +0200, Wilfred van Velzen wrote:
I noticed some error's on one of the raid disks in the servers /var/log/warn file:
May 4 22:59:04 sernux4 smartd[3368]: Device: /dev/sdb, 1 Currently unreadable (pending) sectors May 4 22:59:04 sernux4 smartd[3368]: Device: /dev/sdb, 1 Offline uncorrectable sectors
This is the original problem: the hard disk has one unreadable sector, detected by SMART. You can use smartctl to learn more about it. It is possible for the hardware to remap that sector; this is triggered by a write to it, but meanwhile the raid has redirected that sector to another mirror.
Btw: The disk is only a couple of months in operation so still under waranty.
I would run a full disk diagnostic using smartctl.
You mean: smartctl -t long /dev/sdb ? I already did some "smartctl -t select,n-m" tests on the offending ranges, but this found no errors. I will run the long test tonight when the server is less busy... Met vriendelijke groet / Best regards, Wilfred van Velzen -- SERCOM Regeltechniek b.v. Heereweg 9 2161 AB Lisse Nederland +31 (0)252 416530 (voice) +31 (0)252 419481 (fax) <http://www.sercom.nl/> Op al onze offertes, op alle opdrachten aan ons en op alle met ons gesloten overeenkomsten zijn toepasselijk de METAALUNIEVOORWAARDEN, gedeponeerd ter Griffie van de Rechtbank te Rotterdam, zoals deze luiden volgens de laatstelijk aldaar neergelegde tekst. De leveringsvoorwaarden worden u op verzoek toegezonden. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Monday 2007-05-07 at 16:13 +0200, Wilfred van Velzen wrote:
I would run a full disk diagnostic using smartctl.
You mean: smartctl -t long /dev/sdb ?
Yes.
I already did some "smartctl -t select,n-m" tests on the offending ranges, but this found no errors. I will run the long test tonight when the server is less busy...
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. Only the remap counter should show it (Reallocated_Sector_Ct). P.S: Your mail program (Novell GroupWise Internet Agent 6.0.1) does not respect mail threads. I think that was a problem they already solved in another version or upgrade. I mention this because it was only chance that I saw your answer. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFGP84ptTMYHG2NR9URAnwKAJ925R38xfLmunYG1Ltu7pyP1DNDjgCfa6uG NLa3Dj/XZIJj0FWMbb+B4tk= =Q5gj -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
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Carlos E. R. -
Wilfred van Velzen