Chapter 7. Advanced maintenance, troubleshooting, and diagnostics 339
After you click Yes, the activation process starts. The activation applies the transferred
code to the controllers, rebooting first one, then the other. If you have all your hosts with
path redundancy, you should not see more of a problem than with the disks going through
one controller to the other while they are rebooted. We recommend scheduling this
activation during a period of low I/O access.
You can monitor the progress in the Activation window, as shown in Figure 7-11.
Figure 7-11 Activating the firmware
When the new firmware is activated on both controllers, you see the “Activation
successful” message. Click Close to return to the Subsystem Management window.
7.1.6 Controller Firmware Upgrade Tool
The following information describes how to use the IBM System Storage DS4000/DS5000
Controller Firmware Upgrade Tool to upgrade your DS4800, DS4700, or DS4200 Express
controller firmware from 06.xx to 07.xx.
Overview
With Storage Manager Version 10.50, the Controller Firmware Upgrade Tool has become part
of the Enterprise Management window (EMW) and is no longer a separate tool. Be aware
that:
You can perform only a major release to major release (06.xx. to 07.xx) upgrade, using
this tool.
Attention: Users upgrading from 6.xx.xx.xx controller firmware must upgrade to 7.1x.xx.xx
or 7.36.xx.xx firmware first before upgrading to 7.50.13.00 or above.
Note: Do not attempt to perform this type of firmware upgrade using the Subsystem
Management window (SMW). Once you are at the 07.xx firmware level, you do not
need to use the Controller Firmware Upgrade Tool. Any future firmware upgrades can
be performed by using the SMW.
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