RAID 4 - Georgia Tech - HPCA: Part 5

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[@antoniobento6813]

Amazing, thanks!

[@kyapox]

How is this different from RAID 5?

[@krysiu8177]

3:06 so a "full" recalculation of a block on parity disk on writing to disk 1 would require reading corresponding blocks on disk 2 and disk 3 and performing a xor BUT this could be optimized if you know the old contents of currently written block on disk1, correct?

[@krysiu8177]

ok, you explain it in your video here : ruclips.net/video/3QXaSzM2fE8/видео.html