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From: Brett Russ <bruss@netezza.com>
To: linux-raid@vger.kernel.org
Subject: Re: Why does one get mismatches?
Date: Wed, 20 Jan 2010 17:43:45 -0500	[thread overview]
Message-ID: <hj80v1$rap$1@ger.gmane.org> (raw)
In-Reply-To: <70ed7c3e1001201430i72023a9fq1341b671073ac53c@mail.gmail.com>

On 01/20/2010 05:30 PM, Majed B. wrote:
> He needs to run a full offline or long test before checking with
> smartctl -a -- since it won't show any sector errors if those tests
> weren't run at least once.

Not sure I agree with that.  The md checks he's been doing will cause a 
read of all data regions of the relevant partition and if the disk is 
throwing errors, those sectors should be marked probational.  Then, if a 
subsequent repair ends up remapping them, those sectors will show up as 
remapped.

The grep will show both probational and remapped sector counts for each 
drive.

BTW, the cmd should also include an echo so it's easy to tell which 
drive is being reported:

for di in a b c d e f g; do echo $di; smartctl -a /dev/sd$di | grep -i 
_sect; done

-BR


  reply	other threads:[~2010-01-20 22:43 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-20 15:03 Why does one get mismatches? Jon Hardcastle
2010-01-20 15:34 ` Brett Russ
2010-01-20 20:44   ` Majed B.
2010-01-20 22:25     ` Brett Russ
2010-01-20 22:30       ` Majed B.
2010-01-20 22:43         ` Brett Russ [this message]
2010-01-20 23:01           ` Christopher Chen
2010-01-21  4:17           ` Steven Haigh
2010-01-21  8:08             ` Asdo
2010-01-21 10:52               ` Steven Haigh
2010-01-21 11:48                 ` Farkas Levente
2010-01-21 12:15                   ` Jon Hardcastle
  -- strict thread matches above, loose matches on Subject: below --
2010-02-01 23:14 Jon Hardcastle
2010-01-25 20:43 greg
2010-01-25 22:49 ` Steven Haigh
2010-01-27 21:54   ` Tirumala Reddy Marri
2010-01-28  9:16     ` Jon Hardcastle
2010-01-28 10:29       ` Asdo
2010-01-28 17:20     ` Tirumala Reddy Marri
2010-01-28 18:23       ` Goswin von Brederlow
2010-01-28 19:03         ` Tirumala Reddy Marri
2010-01-28 20:24           ` Goswin von Brederlow
2010-01-29 15:37             ` Jon Hardcastle
2010-01-29 23:52               ` Goswin von Brederlow
2010-01-30 10:39                 ` Jon Hardcastle
2010-02-01 21:10               ` Bill Davidsen
2010-01-20 11:52 Fw: " Jon Hardcastle
2010-02-01 21:18 ` Bill Davidsen
2010-02-01 22:37   ` Neil Brown
2010-02-02 15:11     ` Bill Davidsen
2010-02-03 11:17       ` Goswin von Brederlow
2010-02-11  5:14       ` Neil Brown
2010-02-11 17:51         ` Bryan Mesich
2010-02-16 21:25           ` Bill Davidsen
2010-02-16 21:38             ` Steven Haigh
2010-02-17  3:19               ` Bryan Mesich
2010-02-17 23:05               ` Neil Brown
2010-02-19 15:18                 ` Piergiorgio Sartor
2010-02-19 22:02                   ` Neil Brown
2010-02-19 22:37                     ` Piergiorgio Sartor
2010-02-19 23:34                     ` Asdo
2010-02-20  4:27                       ` Goswin von Brederlow
2010-02-20 11:12                         ` Asdo
2010-02-21 11:13                           ` Goswin von Brederlow
     [not found]                             ` <8754A21825504719B463AD9809E54349@m5>
     [not found]                               ` <20100221194400.GA2570@lazy.lzy>
2010-02-22 13:01                                 ` Asdo
2010-02-22 13:30                                   ` Piergiorgio Sartor
2010-02-22 13:44                                   ` Piergiorgio Sartor
2010-02-24 19:42                               ` Bill Davidsen
2010-02-20  4:23                     ` Goswin von Brederlow
2010-02-24 14:54                     ` Bill Davidsen
2010-02-24 21:37                       ` Neil Brown
2010-02-26 20:48                         ` Bill Davidsen
2010-02-26 21:09                           ` Neil Brown
2010-02-26 22:01                             ` Piergiorgio Sartor
2010-02-26 22:15                             ` Bill Davidsen
2010-02-26 22:21                               ` Piergiorgio Sartor
2010-02-26 22:20                             ` Asdo
2010-02-27  6:01                               ` Michael Evans
2010-02-28  0:01                                 ` Bill Davidsen
2010-02-24 14:46                 ` Bill Davidsen
2010-02-24 16:12                   ` Martin K. Petersen
2010-02-24 18:51                     ` Piergiorgio Sartor
2010-02-24 22:21                       ` Neil Brown
2010-02-25  8:41                         ` Piergiorgio Sartor
2010-03-02  4:57                           ` Neil Brown
2010-03-02 18:49                             ` Piergiorgio Sartor
2010-02-24 21:39                     ` Neil Brown
     [not found]                       ` <4B8640A2.4060307@shiftmail.org>
2010-02-25 10:41                         ` Neil Brown
2010-02-28  8:09                       ` Luca Berra
2010-03-02  5:01                         ` Neil Brown
2010-03-02  7:36                           ` Luca Berra
2010-03-02 10:04                             ` Michael Evans
2010-03-02 11:02                               ` Luca Berra
2010-03-02 12:13                                 ` Michael Evans
2010-03-02 18:14                                 ` Asdo
2010-03-02 18:52                                   ` Piergiorgio Sartor
2010-03-02 23:27                                     ` Asdo
2010-03-03  9:13                                       ` Piergiorgio Sartor
2010-03-03 11:42                                         ` Asdo
2010-03-03 12:03                                           ` Piergiorgio Sartor
2010-03-02 20:17                                   ` Neil Brown
2010-02-24 21:32                   ` Neil Brown
2010-02-25  7:22                     ` Goswin von Brederlow
2010-02-25  7:39                       ` Neil Brown
2010-02-25  8:47                     ` John Robinson
2010-02-25  9:07                       ` Neil Brown
2010-02-11 18:12         ` Piergiorgio Sartor
2010-01-19 10:04 Jon Hardcastle
2010-01-20 14:19 ` Brett Russ
2010-01-20 14:34   ` Jon Hardcastle
2010-01-20 14:46     ` Brett Russ
2010-02-01 20:48       ` Bill Davidsen
2010-01-22 16:22   ` Jon Hardcastle
2010-01-22 16:34     ` Asdo
2010-01-22 17:41     ` Brett Russ

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