Mirrored Vdev’s are equivalent to a RAID1 array, with the added bonus of checksum data to prevent silent data corruption. The performance of a Mirrored Vdev Zpool will be very similar to a RAID1 array.
To create a Mirrored Vdev Zpool first run the format command to find the disks that you have in your system.
Once you have run the format command, you should have a list of disks that you can select for your Zpool. Select the ones that you would like to use (we’ll use c4t5d0 and c4t6d0) and issue this command :
zpool create tank mirror c4t5d0 c4t6d0
Once you issue that command, it should build the zpool. Run the “zpool status” command to make sure it was created as expected.
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