Volume Status - ZyXEL Communications NSA-220 PLUS User Manual

Chapter 5 Storage
Table 17 Storage > Create an Internal Volume (continued)
RAID 0
RAID 1
Volume will be
created on
Apply
Cancel
Once you create the first volume on the NSA, it is recommended to restart the
NSA for better performance.

5.3.1 Volume Status

You (the administrator) can see the status of a volume in the Status or Storage screens.
The NSA has the following classifications for the status of a volume:
• Healthy if all disks in the volume are OK and the file system is functioning properly.
• OK means the USB connected device is functioning properly.
• Resync when you create a RAID volume.
• Recovering appears when repairing a RAID 1 volume. (A RAID1 volume was once
degraded, but you have installed a new disk and the NSA is restoring the RAID1 volume
to a healthy state.)
• Degraded when a volume is currently down, but can be fixed. Data access may be slower
from a degraded volume, so it's recommended that you replace the faulty disk and repair
the volume as soon as you can.
• Inactive when a disk is missing from a RAID 0 volume or a two-disk JBOD volume. The
volume is unusable. If you removed one of the disks you should be able to re-install it and
use the volume again (as long as you did not change anything on the disk). If a disk has
failed, you need to replace it and re-create the whole volume. All data will be lost. See
page 186
• Down when a volume is down and can not be fixed.
A down RAID volume cannot be used until you repair or replace the faulty disk(s) in the
volume. Degraded means one of the disks in the RAID volume is not available but the volume
can still be used. For a degraded volume, you should replace the faulty disk as soon as possible
to obtain previous performance. See your Quick Start Guide for more information on replacing
a disk.
If it's down, then the only indication is that you can no longer transfer files to/from the shares
in the down volume. If it's degraded, then file transfer to/from the shares in the degraded
volume will be slower.
90
Use this if you want maximum speed for your disks, and/or you have other
means of protecting your data. This is only available when you have two hard
disks installed.
Use this if you want to mirror all data on one disk to the other disk. This is only
available when you have two hard disks installed.
This field lists all hard disks installed inside the NSA. Select which disks should
make up this volume. A disk can only belong to one volume. You do not need to
select anything if only one hard disk is installed.
Click this to save your changes and create the volume.
Click this to exit this screen without saving your changes or creating a volume.
for how to install or replace a hard drive.
NSA-220 Plus User's Guide