Drive Channel Minihub Data Rate Mismatch

What Caused the Problem?

There are one or more drive channel minihubs in the controller enclosure that are not set to the same data rate.

Important Notes

Caution

Electrostatic discharge can damage sensitive components. Use a grounding wrist strap or other anti-static precautions before removing or handling components.

Recovery Steps

1

Stop all I/O to the storage subsystem.

2

You will need to determine what data rate you will run all drive channels at. Use the Recovery Guru's Details area to determine which minihiubs are not running at the same speed. Use the Storage Subsystem Profile to verify what data rates are supported by the ESMs and drives connected to the minihubs. Remember to verify the new data rate can be supported by all of the ESMs and Drives connected to your storage subsystem. Once a common data rate is determined, use the Recovery Guru's Details area to locate the minihubs that need their data rate changed and perform the following on those minihubs:

  • Change the data rate on the minihub using the toggle switch located on the top of the minihub.
  • Verify that all components connected to the minihub are also set to the same data rate.

3

Select Recheck to rerun the Recovery Guru to ensure that the failure has been fixed.