IBM N Series, Hardware Manual

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Chapter 20. Designing for nondisruptive upgrades
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The NDU happens automatically. You do not need to use the storage download acp
command. The NDU can take 3 - 4 minutes to complete with up to five ACP modules running
an NDU in parallel.
20.4.2 Upgrading ACP firmware manually
To upgrade ACP firmware manually, you must download the most recent firmware from the
IBM Support site to the controller’s
/etc/acpp_fw directory. Use the storage download acp
command to start the ACP firmware upgrade. It downloads the firmware to all ACPs in an
active state unless a specific ACP is identified by using the
storage download acp command.
As with other firmware downloads, ACP firmware download does not require the cluster to be
enabled. ACP firmware download can be run during a takeover in an HA pair.
20.5 RLM firmware NDU
The RLM is a remote management card that is installed in N6000 and N7000 series
controllers. It provides remote platform management capabilities, such as remote platform
management, remote access, monitoring, troubleshooting, and logging. The RLM is
operational regardless of the state of the controller, and is available if the controller has input
power. The RLM firmware can be updated by the Data ONTAP command-line interface or the
RLM command-line interface. Both procedures are nondisruptive upgrades of the RLM
firmware.
Perform nondisruptive upgrades by downloading the latest RLM firmware from the IBM
Support site to a web server on a network accessible by the controller. After the firmware is
downloaded, use one of the following methods to download the firmware to the RLM:
򐂰 From the Data ONTAP command-line interface
From the controller console, run the following command to install the firmware:
software install http://web_server_name/path/RLM_FW.zip -f
The installation can take up to 30 minutes to complete. To update the files after
installation, use the
rlm update –f
command.
򐂰 From the RLM command-line interface
Run the following command to install the firmware:
update http://web_server_ip_address/path/RLM_FW.tar.gz -f
Then, reboot the RLM by using the rlm reboot command.