Leds - QNAP TS-431X User Manual

This feature supports incremental backups. The NAS only copies files that were modified or added after the
last backup.
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 Components.
LED
System Status Flashes green and red
alternately every 0.5
seconds
Red
Flashes red every 0.5
seconds
Flashes green every 0.5
seconds
Flashes green every 2
seconds
Green
Off
LAN Orange
Flashes orange
Status
• 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.
• 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.
• An error occured when accessing (read/write) the data.
• A bad sector is detected on the hard drive.
• The NAS is in degraded read-only mode (two member
• Hardware self-test error
The NAS is in degraded mode (one member drive failed in
RAID 1, RAID 5, or RAID 6).
• The NAS is starting up.
• The NAS is not configured.
• A drive is not formatted.
The NAS is in S3 sleep mode.
The NAS is ready.
All drives are in standby mode.
A read/write error occured while another device is
accessing data.
The NAS is being accessed from the network.
Description
drives failed in RAID 5 or RAID 6 but the data can still
be read).
TS-431X User Guide
Basic Operations 28