How to Reset a Solid Amber LED on an Oracle Big Data Appliance Disk Drive If There is No Indication of Disk Failure

Asset ID:	1-71-1541523.1
Update Date:	2013-03-29
Keywords:

Solution Type Technical Instruction Sure

Solution 1541523.1 : How to Reset a Solid Amber LED on an Oracle Big Data Appliance Disk Drive If There is No Indication of Disk Failure

Applies to:

Big Data Appliance X3-2 Hardware - Version All Versions and later
Linux x86-64

Goal

This note documents when a full power down on a server with a solid amber LED (on an otherwise healthy disk) is required and how to perform that step.

In the case where:

1. You determine that one or more solid amber LED(s) on Oracle Big Data Appliance (BDA) disk drive(s) do not indicate a disk failure via the procedures described in:
How to Determine if a Flashing Amber LED on an Oracle Big Data Appliance Disk Drive Does Not Indicate Disk Failure (Doc ID 1537798.1)

Note that you follow the same steps to determine if a disk is healthy for a solid amber LED as is described for a flashing LED

and

2. A LED reset does not reset the service LED(s)

Then the next step is to perform a full power down on any server with one or more solid amber LEDs. This step allows for a complete cold boot which fully resets components.

Fix

A full server power down is performed as below:

Before powering down the server, verify that there will be no impact on any application specific jobs. You may want to stop any such jobs before powering down the server. Note that from the point of view of Hadoop, in the case of powering down a non-critical node (i.e. not node 1, 2, or 3) HDFS should redistribute jobs to other nodes without interruption.

1. Login to the server with the solid LED as root.

2. Issue "shutdown -hP now" to poweroff after shutdown.

# shutdown -hP now

3. In the data center remove the power cords on the server for ~15 seconds.

4. In the data center manually power the server back on.

5. In the data center verify that the disk(s) with solid amber LED(s) before the power down are now showing solid green.

If a LED is still on after the power down the recommendation is to replace the disk. Follow the steps in "Prerequisites for Replacing a Working Disk" in: Steps for Replacing a Disk Drive and Determining its Function on the Oracle Big Data Appliance V2 (Doc ID: 1514231.1), replace the disk, and then reconfigure the disk as per the instructions in (Doc ID: 1514231.1). Please log a service request for assistance with disk replacement and so that a replacement disk may be sent.

References

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