There are two modes for Volume creation: X-RAID2 and standard RAID. X-RAID2 is the default and basically lets you add storage to an existing volume. It can withstand one drive failure and has a 1 drive overhead.
Slideshow: NETGEAR ReadyNAS Pro
NETGEAR's top-of-the-line NAS is fast and expensive. Read the full review.
There are two modes for Volume creation: X-RAID2 and standard RAID. X-RAID2 is the default and basically lets you add storage to an existing volume. It can withstand one drive failure and has a 1 drive overhead.
There are two modes for Volume creation: X-RAID2 and standard RAID. X-RAID2 is the default and basically lets you add storage to an existing volume. It can withstand one drive failure and has a 1 drive overhead.
Synology Announces Faster Four-Bay NAS 
