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.
• 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
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 starting up.
• The NAS is not configured.
• A drive is not formatted.
Flashes green every 2
seconds
The NAS is in S3 sleep mode.
Green
The NAS is ready.
Off
All drives are in standby mode.
Drive
Flashes red
The drive is being located.
Red
A drive read/write error has occurred.
Flashes green
The data is being accessed.
Green
The drive can be accessed.
Off
No drive is detected.
M.2 SSD
Flashes red
The drive is being located.
Red
A drive read/write error has occurred.
Flashes green
The data is being accessed.
Green
The drive can be accessed.
Off
No drive is detected.
TVS-882BR User Guide
Basic Operations
59
