How to detect whether I use RAID0 or RAID1?

[dmitrii_fediuk]

mdadm --detail <device>

-D, --detail
Print details of one or more md devices.

• linux.die.net/man/8/mdadm
  • archive.is/XjZR3#selection-2495.0-2499.8

Example

mdadm --detail /dev/md0