Brocade Adapters Administrator’s Guide 9
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Software downgrade using Adapter Software Installer 2
Software downgrade using Adapter Software Installer
Although driver and HCM downgrades are not supported, the following procedures are
recommended for downgrading between versions 2.1, 2.0, and 1.1 of the Brocade adapter
software. If you are not downgrading previous software versions, proceed to HCM software launch.

Downgrading HCM and driver or HCM only

To downgrade HCM and adapter drivers or HCM only, follow these steps, which are detailed in the
following designated sections of the Brocade Adapters Installation and Reference Manual.
1. Uninstall HCM and drivers or HCM only using procedures detailed under "Software removal
using Adapter Software Uninstaller."
2. When a message box displays asking to back up the HCM configuration, click Yes and proceed
with the software removal. Refer to "HCM configuration data."
3. Install the desired version of the software using "Using the Adapter Software Installer."
When the "Found Backed up data" message displays prompting you to restore old
configurations, select restore the data and continue with the installation.

Downgrading driver only

Uninstall existing drivers using procedures under "Software removal using Adapter Software
Uninstaller" in the Brocade Adapters Installation and Reference Manual.
Install new drivers using procedures under "Using the Adapter Software Installer" in the Brocade
Adapters Installation and Reference Manual.

HCM configuration data

HCM configuration data is compatible between version 2.1, 2.0, 1.1, and 1.0 of the Brocade
adapter software. Configuration data that is backed up when prompted during software removal
with the Adapter Software Uninstaller and when using the HCM Backup dialog box includes the
following:
The following application configuration files are backed up in the data directory:
HBAApplication.properties
SetupDiscovery.properties
HbaAliasdb.properties
log4j.xml
noitacitnehtua.properties
Syslog.properties
Logging.properties