User manual

94
Expand C apacity (Online RAID C apacity Expansion)
Sce na r io
You bought four 250GB hard drives for initial setup of a TS-509 Pro NAS and configured RAID 5 disk
configuration with the four hard drives.
A half year later, the data size of the department has largely increased to 1.5TB. In other words, the
storage capacity of the NAS is running out of use. At the same time, the price of 1TB hard drives has
dropped to a large extent.