Netgear RND2220v1 – READYNAS DUO v1 (4TB: 2 X 2TB) Software Guide

From the Space reserved for snapshots drop-down list, select how much space to reserve 
for a snapshot.

A snapshot is a read-only copy of the volume’s files as they were at a specific time. The 
volume stores information about the changes that happened to the files after that time to 
a separate area of the volume. If the amount of space needed for the changes surpasses 
the area reserved, the volume stops maintaining the snapshot. 

Snapshots are not supported on the Duo.

In the Desired volume size field, enter a size for the new volume.

You can enter size smaller than the one already listed.

Click the Apply button and click the Restart Now button.

Your ReadyNAS system restarts. When the volume is created, you receive an email 
message.

Add a Disk to a Volume

To add a disk to a volume, you must delete the volume and then recreate it with the additional 
disk. 

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Back up the data in the volume.

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From the FrontView main menu, select Volumes > Volume Settings.

Click the tab for the volume you want to delete.

If you have just one volume, it is called Volume C.

Click Delete Volume.

You receive an email message when the deletion process starts and another when the 
deletion process finishes. 

Insert a new compatible disk.

For a list of compatible disks, see 

.

For best performance, use disks that are the same make, model, and size. If you use 
disks of different sizes, your system treats the disks as though they were all the same 
size as the smallest disk. For example, if you have four disks, and three are 1 TB and one 
is 500 GB, it treats all the disks as if they were 500 GB and gives you only 1.5 TB of 
space for files.

You receive an email message alerting you that a new disk was inserted.