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Date:      Thu, 24 Oct 1996 13:41:39 -0700
From:      David Greenman <dg@root.com>
To:        dwhite@resnet.uoregon.edu
Cc:        Bill Fenner <fenner@parc.xerox.com>, questions@freebsd.org
Subject:   Re: Is my disk going bad? 
Message-ID:  <199610242041.NAA06512@root.com>
In-Reply-To: Your message of "Thu, 24 Oct 1996 13:23:12 PDT." <Pine.BSI.3.94.961024132239.14287G-100000@gdi.uoregon.edu> 

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>On Thu, 24 Oct 1996, Bill Fenner wrote:
>
>> I just noticed that I've been getting these for a while:
>> 
>>  sd1(ncr0:1:0): MEDIUM ERROR info:119a05 csi:6,a8,3,41 asc:11,43  field replaceable unit: 15 sks:80,40
>> 
>> sd1 is a Quantum 1080S.  I don't have the probe messages since the
>> medium error messages have scrolled them away.
>> 
>> I just yesterday turned on remapping:
>> 
>> % scsi -f /dev/rsd1 -m 1
>> AWRE (Auto Write Reallocation Enbld):  1 
>> ARRE (Auto Read Reallocation Enbld):  1 
>> 
>> but it's not remapping, it's still returning errors.
>> 
>> Is this the disk going so bad that it can't reallocate to good blocks?
>
>How full is it?  Once you've filled the disk then it can't reallocate
>those bad sectors anywhere else.

   Uhh, gurp. Drives reserve spare tracks and blocks for use in reallocation.
The space does not come from the filesystem free block pool.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project



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