I have 5 new disks and I want to build a raid5. I am think which one is the better method. 1) build normally, so raid will do reconstruction and i probably want to wait till it ends 2) zero all disks using dd. then build a raid without need to computer checksum at all since 0xor0=0. in fact, i am thinking which mdadm command can allow me to do (2) Ming
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