MegaRAID Storage Manager Online Help System

Maintaining and Managing Storage Configurations > Upgrading the Firmware

Upgrading the Firmware

The MegaRAID Storage Manager software enables you to easily upgrade the controller firmware. To avoid data loss because of dirty cache on the controller, the utility forces the virtual disks into Write-through mode after a firmware upgrade. It is in the Write-through mode until the server reboots. In Write-through mode, the controller sends a data transfer completion signal to the host when the disk subsystem has received all the data in a transaction. This way, in case of a power outage, the controller does not discard the dirty cache.

Follow these steps to upgrade the controller firmware:

  1. In the left panel of the MegaRAID Storage Manager main menu screen, click on the icon of the controller you need to upgrade.
  2. On the main menu screen, click Go To >> Controller >> Update Controller Firmware.
  3. Click Browse to locate the .rom update file, as shown in Figure 33.
  4. Figure 33 Update Controller Firmware Window



  5. After you locate the file, click OK.
  6. The MegaRAID Storage Manager software displays the version of the existing firmware and the version of the new firmware file. The MegaRAID Storage Manager software does not allow you to overwrite a newer version of the firmware with an older version.
  7. When you are prompted to indicate whether you want to upgrade the firmware, click Yes.
  8. The controller is updated with the new firmware code contained in the .rom file.
  9. Reboot the system after the new firmware is flashed.
  10. The new firmware does not take effect until reboot.

DB09-000202-05  37857-02  Rev. F  May 2011
Copyright© 2011 by LSI Corporation. All rights reserved.
You can find a list of the LSI U.S. distributors, international distributors, sales offices, and design resource centers on the LSI web site at:  http://www.lsi.com/cm/ContactSearch.do