Dell PowerVault 725N (Rackmount NAS Appliance) - Manual (Page 95)

Reconfiguring a Hardware-RAID NAS System Volume
1. Before reconfiguring the volume, manually remove all shares and persistent images.
2. If during the deletion, the system messages that it cannot complete the deletion, use Array Manager.
See " Using Array Manager to Manage Your Disks and Volumes " in the "Advanced Disk and Volume Management" section of this guide.
3. Log in to the NAS Manager.
See " Logging in to the NAS Manager " in this section of the guide.
4. Click Disks.
5. Click Volumes.
6. In the Volumes column, select the volume that is to be reconfigured.
7. On the Tasks list, click Reconfigure.
8. Select the New Layout, which is either Single RAID-5 or Single RAID-0.
9. Click OK to delete and reconfigure the volume.
Repairing a Hardware-RAID NAS System Volume
If one hard drive fails, replace the drive, and the RAID controller card automatically repairs the volume to make it fault-tolerate again. However, if more than
one drive fails, the operating system must be reinstalled. For information about replacing drives in a hardware-NAS system see "
Replacing Hardware-RAID NAS
System Hard Drives " in the "Recovering and Restoring the System" section of this guide. The process may take several hours to complete.
Viewing Hardware-RAID NAS System Volume Properties
1. Log in to the NAS Manager.
See " Logging in to the NAS Manager " in this section of the guide.
2. Click Disks.
3. Click Volumes.
4. In the Volumes column, select the volume whose properties you want to view.
NOTICE: Do not perform the volume reconfiguration and repair procedures in this section on a software-RAID NAS system. See " Managing Software-
RAID NAS System Volumes " in this section of the guide to configure those volumes. For instructions on how to determine if you have a software-RAID or
a hardware-RAID NAS system, see " Determining if a NAS System Uses Software RAID or Hardware RAID " in this section of the guide.
NOTE: Various errors will be displayed in the system event log if shares, persistent images, or both are present in the volume.
NOTICE: Regardless of how many data drives exist, the reconfiguration procedure deletes all data and creates a single volume of the desired RAID
group.
NOTE: Reconfigure appears only if all of the disks in the NAS system are functioning properly. If Reconfigure does not appear, one or more of
your volumes is damaged and requires repair. See " Repairing a Hardware-RAID NAS System Volume " in this section of the guide.
NOTE: RAID 0 volumes are not fault-tolerant and do not provide data protection if a drive fails.
NOTE: If the volume is in use—for example, the volume is open in a browser window, the volume contains shares or snapshots, or another
application is using the volume—a message displays stating that the operation has failed and that you need to use Array Manager. Ensure that
you delete all shares and persistent images on that volume. The administrator can use Array Manager to force the deletion of the volume. See the
"
Advanced Disk and Volume Management " section of this guide for more information.
NOTE: A hardware-RAID NAS system automatically repairs a volume when a new blank hard drive is inserted. No user interaction is required. Ensure
that the new hard drive is the same size as or larger than the failed drive. For instructions on how to determine if you have a software- RAID or a
hardware-RAID NAS system, see "
Determining if a NAS System Uses Software RAID or Hardware RAID " in this section of the guide.