You can upgrade the of the controllers in the storage subsystem by using the storage management software.
In the process of upgrading the firmware, the firmware file is downloaded from the host to the controller. After downloading the firmware file, you can upgrade the controllers in the storage subsystem to the new firmware version immediately. Optionally, you can download the firmware file to the controller and upgrade the firmware later at a more convenient time.
The process of upgrading the firmware after downloading the firmware file is known as activation. During activation, the existing firmware file in the memory of the controller is replaced with the new firmware file.
The firmware upgrade process requires that the controllers have enough free memory space in which the firmware file resides until activation.
The storage management software checks for existing conditions in the storage subsystem before upgrading the firmware. Any of these conditions in the storage subsystem can prevent the firmware upgrade:
You can correct some of these conditions using the Subsystem Management Window. However, for some of the conditions, you might need to contact your representative. The storage management software saves the information about the firmware upgrade process in log files. This action helps the representative to understand the conditions that prevented the firmware upgrade.
You also can use the (CLI) to download and activate firmware to several storage subsystems. For more information, refer to the About the Command Line Interface online help topic.