LED Status Description
System Status Flashes green and red
alternately every 0.5
seconds
• The drive is being formatted.
• The device 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 firmware is being updated.
Important
When updating the firmware, do not remove
the power cord or USB cable, and do not
force-exit the application.
Red • The drive is invalid.
• The shared folder has reached its full capacity.
• The shared folder is about to reach its full capacity.
• The system fan is not functioning.
• An error occurred when accessing (read/write) the
data.
• A bad sector is detected on the hard drive.
• The device is in degraded read-only mode (two
member drives failed in RAID 5 or RAID 6 but the data
can still be read).
• A hardware self-test error occurred.
Flashes red every 0.5
seconds
The device is in degraded mode (one member drive failed
in RAID 1, RAID 5, or RAID 6).
Green The device is ready.
Flashes green every 0.5
seconds
• The device is not configured.
• A drive is not formatted.
Off • All drives are in standby mode.
• The device is powered off.
10 Gigabit
Ethernet
Green The network connection is operating at 10 Gbps.
Off The device is not connected to a 10 GbE network.
TS-h3088XU-RP User Guide
Basic Operations 43
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