Date: Mon, 16 Jun 2008 16:41:15 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Bill Moran <wmoran@potentialtech.com> Cc: z.szalbot@lc-words.com, freebsd-questions@freebsd.org Subject: Re: RAID 1 / disk error / Offline uncorrectable sectors Message-ID: <20080616163856.H1467@wojtek.tensor.gdynia.pl> In-Reply-To: <20080616085534.ca7524f8.wmoran@potentialtech.com> References: <48565E7A.50807@lc-words.com> <20080616085534.ca7524f8.wmoran@potentialtech.com>
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> > Replace the hard drive. Every modern hard drive keeps extra space available > to "remap" bad sectors. This happens magically behind the scenes without > you ever knowing about it. Once you've hit "uncorrectable" errors, it means no. usually it means that there was an error when writing that sector, and later there is an error on read. madia may be good (quite often is). if you would be right i wouldn't have my disk running one year after having whole block of "uncorrectable errors" i just rewrote that blocks and they are readable. drive HAS TO know about bad media to remap, and no HDDs today perform verification
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