Data corruption detected after system reset - LSI Logic MegaRAID 8480 SAS Controller

Resolving The Problem

Source

RETAIN tip: H19554

Symptom

Data inconsistencies may be detected on a MegaRAID logical volume if the logical volume has an on-going background operation in progress and a system reset occurs.

Affected configurations

This tip is not machine specific.

The following firmware level(s) are affected:

The system is configured with one or more of the following IBM Options:

The MegaRAID firmware for the version 1.02.02-0167 is affected.

The system is configured with at least one of the following:

Note: This does not imply that the network operating system will work under all combinations of hardware and software.

Please see the compatibility page for more information:

Solution

IBM strongly recommends applying MegaRAID Firmware image version 1.03.20-0400 or higher.

The file is available from the IBM System x Support web site at the following URL:

Additional information

When a logical volume is running a background I/O operation such as an "initialization" or a "consistency check", and the system is rebooted, there is a very low probability for the controller to acknowledge a complete I/O to the host operating system prior to the I/O being completed.

This is a rare issue can result in data corruption on the logical volume, and as a result, the user would see errors reported by the operating system or an application.