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bad block
(redirected from Bad sector)

   Also found in: Encyclopedia, Wikipedia 0.03 sec.
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Noun1.bad block - (computer science) a block (usually one sector) that cannot reliably hold data
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
block - (computer science) a sector or group of sectors that function as the smallest data unit permitted; "since blocks are often defined as a single sector, the terms `block' and `sector' are sometimes used interchangeably"


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Cause This error could prominently occur due to one of the following reasons: Partition is infected from bad sectors or disk errors Partition table is partially or completely corrupted.
Data misplaced in bad sectors of storage media and MFT/MBR tables also recovers back via latest version of NTFS data rescue utility.
Following figure illustrates how the shadow section is created in the process of disk array recovery in the RAID 5 composed of 4 hard disks: Generally speaking, in the process of disk array recovery all sectors of the remnant hard disks will be read from top to bottom, that is to say all bad sectors in these hard disks will be found and accordingly create corresponding "shadow sections".
 
 
 
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