Question: In RAID 4 , data is placed in Strips that are scattered over the data disks, so that each subsequent strip is on the next

In RAID

4,

data is placed in Strips that are "scattered" over the data disks, so that each subsequent strip is on the next data disk, modulo the number of disks. For this, there is a parity disk that holds the parity bits of zeroth bits, first bits, second bits, etc., equal

-

numbered strips divided by the number of data disks, for example, strips

0 - 3, 4 - 7, 8 - 11,

etc.:

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