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Date:      Tue, 17 Aug 2004 13:36:29 -0500
From:      doug@polands.org
To:        Dan Nelson <dnelson@allantgroup.com>
Cc:        questions@freebsd.org
Subject:   Re: Harddrive beginning to expire?
Message-ID:  <20040817183602.GH21780@omniresources.com>
In-Reply-To: <20040817180633.GF53307@dan.emsphone.com>
References:  <20040817155512.GB21780@omniresources.com> <20040817160819.GA53307@dan.emsphone.com> <20040817165258.GD21780@omniresources.com> <20040817170415.GD53307@dan.emsphone.com> <20040817174055.GG21780@omniresources.com> <20040817180633.GF53307@dan.emsphone.com>

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On Tue, Aug 17, 2004 at 01:06:33PM -0500, Dan Nelson wrote:
> In the last episode (Aug 17), doug@polands.org said:
> > On Tue, Aug 17, 2004 at 12:04:15PM -0500, Dan Nelson wrote:
> > > You can run them at any time.  The AWRE change should be immediate, and
> > > the defects command is just a status inquiry and won't affect anything.
> > > 
> > > Some drives don't update the current settings until the drive is reset,
> > > so if "camcontrol mode da5 -m 1 -P 0" shows AWRE at 0 while "-P 3"
> > > shows it at 1, you may need to reset the drive ("camcontrol reset da5"
> > > with the vinum volume dismounted, or a power-cycle).
> > > 
> > Curious, both camcontrol commands show:
> > 
> > 	AWRE (Auto Write Reallocation Enbld):  1
> > 
> > So it would appear that AWRE has been enabled all along.  Here's a
> > unique list (and count) of the errors since 10 Aug:
> 
> Strange.
>  
> >   43 (da5:ahc0:0:5:0): WRITE(06). CDB: a 0 1 f9 a 
> 
> This is the block you have to be worried about.  It's definitely either
> a file or metadata that gets modified a lot.  If the drive isn't
> reallocating the block, it may be easier to just replace it.  SCSI
> drives usually have a 5-year warranty, so check the vendor's site and
> see if you can get them to replace it.
> 
Thanks Dan... I think the drives in this array are about 14 years old so
I doubt IBM will honor the warranty :)  Certainly have got my money's
worth, however.

-- 
Regards,
Doug



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