When you make a RAID layer above it do a LVM so you will save yourself a lot of heartache if you set not quite well estimated sizes of the partitions. The idea is that if you don't use the XFS or ZFS or any other FS that allows resizing of the partition as EXT2/3/4 for example, things become a big mess as you realize, you didn't do the- sound Division. Basically you get maximum plasticity if necessary decrease or increase the razmerâ of the partition and at the same time, you are protected against unpleasant happenings of your data. In General, yields something of this kind

| / | /var | /usr | /home  |
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|       LVM Volume         |
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|       RAID Volume        |
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| Disk 1 | Disk 2 | Disk 3 |