Where X-RAID excels at large sequential transfers, RAID 5 performs better in smaller random access request pattern, fitting better in most office environments. Full volume management is available when you select RAID 5 (or Flex-RAID) mode. You can delete the existing volume and recreate one or more volumes, with each volume with different snapshot space and quota specification.
You also have the flexibility of assigning an unused disk as a hot spare, allowing for the standby drive to kick in to replace a failed disk, minimizing the time where you may be vulnerable to a second disk failure.
In the future when you need more capacity, you can replace each disk one by one, and when the last disk is replaced, you can create another volume utilizing the new available space. This is in contrast to X-RAID where the single volume expands over the new space.
