Netgear RN3138 Software Manual - Page 36

ReadyNAS OS 6.4 Table 2. X-RAID vertical expansion requirements RAID Level Disk Replacements Required for Vertical Expansion RAID 1 RAID 5 RAID 6 Replace 2 or more disks with larger-capacity disks. Replace 2 or more disks with larger-capacity disks. Replace 4 or more disks with larger-capacity disks. If you replace fewer disks than required for vertical expansion, the disks are reserved for data protection. Your available storage capacity does not increase to accommodate the reserved disks until you replace the required number of disks. IMPORTANT: To reduce the risk of data loss, We recommend that you back up your data before vertically expanding a volume. To vertically expand an X-RAID 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 http://support.netgear.com/product/ReadyNAS-OS6. Note You must use supported disks in your ReadyNAS system. For a list of supported disks, visit http://www.netgear.com/readynas-hcl. 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 are recorded in the system log (see System Logs on page 185). 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 Configure System Alerts on page 153. 3. Repeat Step 1 on page 36 - Step 2 on page 36 until you replace the required number of disks with larger-capacity disks. For more information about X-RAID vertical expansion requirements, see Table 2. Volume Configuration 36