For details on configuring USB One Touch Copy, see the QTS User Guide.
LEDs
LEDs indicate system status and related information when the NAS is powered on. The following LED
information applies only when the drive is correctly installed and when the NAS is connected to the network.
For details on the location of the LEDs, see
.
LED
Status
Description
System Status
Flashes green and red
alternately every 0.5
seconds
• The drive is being formatted.
• The NAS is being initialized.
• The operating system is being updated.
• RAID rebuilding is in progress.
• Online RAID Capacity Expansion is in progress.
• Online RAID Level Migration is in progress.
Red
• The drive is invalid.
• The disk volume has reached its full capacity.
• The disk volume is about to reach its full capacity.
• The system fan is not functioning.
• A read/write error occurred while accessing data.
• A bad sector is detected on the hard drive.
• The NAS is in degraded read-only mode (two member
drives failed in RAID 5 or RAID 6 but the data can still
be read).
• Hardware self-test error
Flashes red every 0.5
seconds
The NAS is in degraded mode (one member drive failed in
RAID 1, RAID 5, or RAID 6).
Flashes green every 0.5
seconds
• The NAS is not configured.
• A drive is not formatted.
Green
• The NAS is starting up.
• The NAS is ready.
Off
All drives are in standby mode.
LAN
Orange
A read/write error occurred while another device is
accessing data.
Flashes orange
The NAS is being accessed from the network.
Drive
Flashes red
The data is being accessed and a read/write error occurs
during the process.
Red
A drive read/write error occurred.
Flashes green
The data is being accessed.
Green
The drive can be accessed.
TS-351 User Guide
Basic Operations
38
