PLANET NAS-3410 - Manual (Page 40)

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bad in the file system. All the newly added devices will be scanned before usage to ensure the
data integrity in the NAS Server.
Select the volumes or disks you want to scan, click Scan Now button to start scanning. Or, click
Schedule to set the time for NAS Server to perform scanning at the scheduled time.
Disk Auto-scanning
To make sure that the hard disks contain no bad sectors before putting into use, it is suggested to
perform disk-scanning before taking such actions as creating a volume, expanding a volume,
migrating data or assigning a hot-spare disks. If disk auto-scanning is enabled, the NAS server
can scan disks automatically when you perform these actions. If the hard disks have ever been
scanned in the last 30 days, the auto-scanning will be skipped so that the auto-scanning will not
be activated too often.
To enable the feature, please click the Configure hyperlink on the Volume
ÆScan page. Set the
Disk Auto-scanning item to Enabled.
5.8 Hot-swapping
You may have to change hard disks in some situations, such as hard disk failure, degraded RAID
or general maintenance. The NAS-3410 supports HDD hot swapping. Below are the instructions
of replacing hard disks.
1. Identify which hard disk fails. The amber LED of the HDD tray will blink to indicate hard disk
failure.
2. Turn off the failed HDD by pressing the red button on the HDD tray.
3. When the amber LED is steady on, it is ready for being unplugged. Unplug the HDD tray and
replace the HDD with a good one.
4. Plug in the HDD tray. Wait until the Green LED is steady on. Then you are done.
When a RAID volume is degraded and there is no available hot-spare disk for rebuilding, the
RAID volume will stay in the degraded state. In this state, you can hot-unplug the failed hard disk
and plug in a good one in the same HDD tray. The RAID volume will rebuild automatically with the
new hard disk.