NETGEAR RN31441E-100NAS, RN31400-100NAS, RN10223D-100NAS Volume Management for Flex-RAID, X-Raid

NETGEAR ReadyNAS User Guide

There are advantages to both technologies.

•Flex-RAID:

–The default volume can be deleted and re-created, with or without the snapshot reserved space.

–Hot spare disk is supported.

–Full volume management is available—you can create a volume utilizing RAID level 0, 1, or 5, specify the size of the volume, delete a disk from a volume, assign a hot spare, and so on.

–Multiple volumes are supported, each with a different RAID level, snapshot schedule and disk quota definition.

–Each disk can be replaced, one by one, then rebuilt; after the last disk is replaced, another data volume utilizing the newly added capacity can be configured.

•X-RAID:

–One-volume technology, but supports volume expansion, either by with the addition of more disks or the replacement of an existing disk with larger capacity disks.

–You can start out with one disk, and add up to three more disks when you need them or can afford them.

–Volume management is automatic. Add a second disk, and it becomes a mirror to the first. Add a third disk and your capacity doubles; add a fourth, and your capacity triples—the expansion occurring while redundancy is maintained.

–In the future, you will be able to replace disks, one at a time, have each one finish rebuilding and, after the last disk is replaced, your volume will automatically expand to utilize the new capacity.

Volume Management for Flex-RAID

If you want to reconfigure the default volume C, split it into multiple volumes, specify a different RAID level, or specify a larger reserved space for snapshots, you need to reconfigure your volume. The first step is to delete the existing volume you want to replace.

1-22 Configuring Your ReadyNAS

v1.0, October 2007