Date: Thu, 11 Mar 2010 16:24:20 +0100 From: "Svein Skogen (Listmail Account)" <svein-listmail@stillbilde.net> To: freebsd-current@freebsd.org Subject: Re: A tool for remapping bad sectors in CURRENT? Message-ID: <4B990B24.9080402@stillbilde.net> In-Reply-To: <861vfq995i.fsf@ds4.des.no> References: <20100308102918.GA5485@localhost> <4B94DDC8.5080008@quip.cz> <20100308115052.GA31896@office.redwerk.com> <4B94FBA6.5090107@quip.cz> <861vfq995i.fsf@ds4.des.no>
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On 11.03.2010 16:21, Dag-Erling Smørgrav wrote:
> Miroslav Lachman <000.fbsd@quip.cz> writes:
>> Yes, rewriting by dd or any other way works for reallocating or
>> clearing pending sectors counter, but in server environment
>
> In a server environment, you'd be a fool not to have some sort of
> redundancy set up.
>
>> I need to know the affected file, as it can be for example database
>> file and then it is a big problem! Rewriting the sector inside InnoDB
>> ib_data file can cause DB crash, data loss etc.
>
> How is that different from *not* rewriting the sector? If there's a bad
> sector somewhere in your data, your database is still going to crash.
Only if he hasn't listened to your first advice and set it up on a
non-redundant IO solution. If he's set it up on proper hardware, he'll
just get a friendly mail about replacing said disk next time he's in the
serverroom with a new fresh hostpare.
//Svein
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