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    SubjectRe: new harddrive with media error
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    Thanks for the input of everybody.
    i think the drive is broken and i will return it.

    Happy gnu year @ all
    Alex


    Tejun Heo schrieb:
    > Al Viro wrote:
    >> From the look of it, I'd say that it's size reported by disk being
    >> more than what's accessible. Take a look at the block numbers...
    >
    > How so?
    >
    > ata1.00: ATA-7, max UDMA/133, 976773168 sectors: LBA48 NCQ (depth 0/32)
    >
    > sda: Current: sense key: Medium Error
    > Additional sense: Unrecovered read error - auto reallocate failed
    > end_request: I/O error, dev sda, sector 976751999
    > Buffer I/O error on device sda1, logical block 976751936
    >
    > It seems like a genuine media error to me. Many drives suffer a number
    > of media errors in its lifetime. Read errors happen regularly and most
    > such errors are corrected by ECC, but sometimes you're just not lucky
    > enough. Some of them are real bad sectors while others might be due to
    > degraded record quality even when the sector itself isn't necessary bad.
    > In most cases, the drive will reallocate the area including the sector
    > when you write to it.
    >
    > Simply rewriting the affected file should solve the problem. Examine
    > the result of 'smartctl -d ata -a' just in case. For data of any
    > importance, it's always wise to use raid 1 or 5 and backup regularly.
    > Both help keeping your data safe in more than one way. Raid re-sync is
    > an easy way out of partial media failures and backing up not only gives
    > you another copy of the data but gives the drives chance to detect
    > degrading area quickly and reallocate before actual read failures begin
    > to occur.
    >

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