To vertically expand a volume, you must replace all disks in the volume with larger-capacity disks of the same physical performance level (disk type and speed). You can vertically expand volumes with RAID 1, RAID 5, RAID 6, or RAID 10.
For example, you can expand an existing volume in a RAID 6 set that consists of four 500 GB SATA 7,200 rpm disks by replacing all four disks with 750 GB SATA 7,200 rpm disks.
To vertically expand a volume:
1. Replace one disk in the volume with a larger-capacity disk.
For more information about how to add a disk to your system, see the hardware manual for your system, which is available at www.netgear.com/readydata.
Note: You must use supported disks in your ReadyNAS system. For more information, see the What basic disk information do I need to know before using my ReadyDATA storage system?
2. Wait for the volume to resync your data.
You can continue to use your ReadyNAS system while the volume is resyncing. Resyncing can take several hours. The start and completion of the resyncing process is recorded in the system log. For more information on system logs, see the What are system logs and how do they work with my ReadyDATA storage system?
If you set up email notifications for your system, you receive an email message when the process finishes. For more information about alert notifications, see the What are system alerts and how do they work with my ReadyDATA storage system?
3. Repeat Step 1-Step 2 until you have replaced each disk in the volume with a larger-capacity disk.