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16 lines
501 B
16 lines
501 B
4 years ago
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# MDADM
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`mdadm` is a utility to create and manage raid devices.
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## Raid 1
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Raid 1 creates a mirror with even amount of drives.
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### Create Raid 0 device
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You can create a Raid 0 device with
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`mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/sda /dev/sdb`
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where `sda` and `sdb` are the disks you want to include in your raid.
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You can increase the number of raid devices, but they have to be at least 2.
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If it is an uneven amount of disks in the raid, a disk will act as a spare disk.
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