Upgrading Nytro Controller Firmware

Upgrading Nytro Controller 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 this 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 of 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 firmware:

1.

In the left panel of the MegaRAID Storage Manager window, click the icon of the controller you want to upgrade.

2.

In the MegaRAID Storage Manager window, select Go To > Controller > Update Controller Firmware.

3.

Click Browse to locate the .rom update file, as shown in the following figure.

Figure 77. Update Controller Firmware Dialog

4.

After you locate the file, click Ok.

The MegaRAID Storage Manager software displays the version of the existing firmware and the version of the new firmware file.

5.

When you are prompted to indicate whether you want to upgrade firmware, click Yes.

The controller is updated with the new firmware code contained in the .rom file.

6.

Restart the system after the new firmware is flashed.

The new firmware does not take effect until you restart the system.