G-Technology G-RACK 12, User Manual, Page: 235 / 296

Troubleshooting
p. 235
Troubleshoot Hardware Issues
How to check if the G-RACK 12 is a faulty unit?
Power
1. Confirm the power cords are plugged in and the unit is turned on. You would be surprised how
many times a cord becomes unplugged.
2. If the this is the only unit in the area confirm the wall power is working.
3. Is there any sound coming from the unit at all? If not it may be a faulty power supply. Since the
G-RACK 12 has dual power supplies would mean that both failed at the same time. This normally
would only happen if the unit was not plugged into a surge protected power source.
Lights
1. There are several lights that indicate issues.
2. Whole Unit - The HDD activity light indicates for the unit means one of the installed drives has
activity. In normal operation this light will blink or appear to be on solid during period of high
activity.
3. Each drive also has an activity light indicating that single drive has activity. In the case of
swapping out a drive you will want to see no blinking before removing a disk drive. When
adding a new drive you will want to look for activity to see that synchronization has started.
4. Network activity - What does the network activity light mean? When data is flowing on/off
the server the light on the network activity LED will blink. There are also LEDs on the network
connector that indicate connection and activity.
5. Power light just indicated the unit has power and is turned on.
6. If there is no drive or network activity the server may be frozen. Rebooting can resolve this.
If it does resolve the issue make sure you review the logs and if necessary email them to G-
Technology Support for additional review.
Beeps
If the server is sounding out beeps during or right after the power is turned on there are any number
of issues possible.
Motherboard BIOS Error Beep Codes
1. 1 beep: Refresh Ready to boot. You want this.
2. 5 short beeps + 1 long beep: Memory error No memory detected in the system. You will want to
check that all memory chips are proper seated on the motherboard.
• 5 beeps: No con-in or con-out devices
• Con-in includes USB or PS/2 keyboard, PCI or serial console redirection, and IPMI KVM or SOL.
• Con-out includes the video controller, PCI or serial console redirection, and IPMI SOL.