Netgear RD521210 – ReadyDATA 5200 12TB SATA Bundle includes RD5200 with 2 x RD5D6LT01 Disk Packs Software Guide

33)

Attach write cache and read cache SSD disks to boost the performance of volumes that 

contain slower disks such as SATA 7,200 rpm or nearline SAS 7,200 rpm disks (see 

39)

40)

You can configure any disk that is not allocated to a volume as a hot spare for any volume in 
case of failure (see 

42). Because the hot spare 

provides only a temporary solution, it can be of any physical performance characteristics, that 
is, it does not need to match the physical performance characteristics of the disks in the 
volumes.

ReadyRECOVER requires its own volume. If you use 
ReadyRECOVER, include this requirement in your space and volume 
planning.The ShadowProtect agent can create this volume for you. 
See the ReadyRECOVER Software User Manual for more 
information.

You can create a volume that spans more than one enclosure by using one or more optional 
expansion disk arrays (EDA2000 and EDA4000). 

The number of volumes that you can create within a ReadyDATA is limited only by the total 
number of disks in the ReadyDATA and expansion disk arrays. With several expansion disk 
arrays, the ReadyDATA supports up to 60 disks and volumes.

When you span a volume across several enclosures, the volume is 
dependent on the availability of all enclosures. If one enclosure fails, 
the entire volume goes offline.