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create linux md raid5
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| # test disks | |
| badblocks -t 0x00 -w /dev/sdb | |
| # partition disks | |
| parted -a optimal /dev/sdb | |
| mklabel gpt | |
| mkpart primary 1M 3000G | |
| set 1 raid on | |
| # create raid array | |
| mdadm --create --verbose /dev/md0 --chunk=512K --level=5 --raid-devices=3 /dev/sd[bcd]1 | |
| # create ext4 filesystem | |
| mkfs.ext4 -b 4096 -E stride=128,stripe-width=256,quotatype=usrquota -T huge -m 0 /dev/md0 |
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