Test And Restore Firmware On Backbones; Testing Different Firmware Versions On Backbones - HP SN3000B Administrator's Manual

9

Test and restore firmware on Backbones

Test and restore firmware on Backbones

This procedure enables you to perform a firmware download on each CP and verify that the
procedure was successful before committing to the new firmware. The old firmware is saved in the
secondary partition of each CP until you enter the firmwareCommit command. If you decide to back
out of the installation prior to the firmwareCommit, you can enter the firmwareRestore command to
restore the former active Fabric OS firmware image.
The firmwareRestore command can only run if autocommit was disabled during the
firmwareDownload. This command cannot be used to restore SAS and SA images.
NOTE
Brocade recommends that, under normal operating conditions, you maintain the same firmware
version on both CPs, and on both partitions of each CP. This procedure enables you to evaluate
firmware before you commit. As a standard practice, do not run mixed firmware levels on CPs.

Testing different firmware versions on Backbones

1. Connect to the Brocade Backbone IP address.
2. Enter the ipAddrShow command and note the address of CP0 and CP1.
3. Enter the haShow command and note which CP is active and which CP is standby. Verify that
4. Enter the firmwareShow command and confirm that the current firmware on both partitions on
5. Exit the session.
6. Update the firmware on the standby CP.
7.
CAUTION
If you are downgrading from Fabric OS v6.2.0 to v6.1.0, your CPs do not gain synchronization, as
this is a disruptive firmware download. Refer to
synchronization states.
206
both CPs are in sync.
both CPs is listed as expected.
a. Connect to the Backbone and log in as admin to the standby CP.
b. Enter the firmwareDownload -s command and respond to the prompts.
At this point, the firmware downloads to the standby CP only. When it has completed the
download to that CP, reboot it. The current Backbone session is disconnected.
Fail over to the standby CP.
a. Connect to the Backbone on the active CP.
b. Enter the haShow command to verify that HA synchronization is complete. It takes a
minute or two for the standby CP to reboot and synchronize with the active CP.
c. Enter the firmwareShow command to confirm that the primary partition of the standby CP
contains the new firmware.
d. Enter the haFailover command. The active CP reboots and the current Backbone session
is disconnected.
Table 46 on page 193 for more information on
Fabric OS Administrator's Guide
53-1002446-01