ZyXEL Communications Network Storage NSA-220 Plus - Manual (Page 6)

6
Install Hard Drives
Once you intall a hard drive on the NSA and create a volume, all existing
data on the disk will be erased. If you want to install two hard drives and
configure them as RAID volumes (see page
15 ), it is recommended to
use the same disk size and model for best performance.
Hard drives are NOT hot swappable. The NSA must
be turned off before you remove or install hard
drive(s).
Creating a volume formats the hard drives. All data
will be lost. Back up any files on the disk to another
location before you install the disk in the NSA.
1. Make sure the power and Ethernet cords are disconnected from the
NSA.
2. Loosen the thumbscrews on the rear panel and open it.