User guide
Virtual Connect modules  221 
Virtual Connect modules 
Firmware updates 
To update firmware, use the HP BladeSystem c-Class Virtual Connect Support Utility v1.9.0. For more 
information on updating the firmware, see the HP BladeSystem c-Class Virtual Connect Support Utility 
documentation on the Installing tab of the HP BladeSystem Technical Resources website 
(http://www.hp.com/go/bladesystem/documentation). 
The following role operations are required to perform firmware updates: Firmware Update, Save Domain 
Configuration, and Export Support Information. For more information on role operations, see "Role 
Management (Role Operations) screen (on page 84)." 
Virtual Connect v4.10 does not support the HP 1/10Gb Virtual Connect Ethernet Module, the HP 1/10Gb-F 
Virtual Connect Ethernet Module, or the HP 4Gb VC-FC Module. If your domain contains these modules, you 
cannot update to VC 4.10. 
To help ensure proper operation, clear the browser cache and reload the browser after firmware updates. 
The firmware downgrade process changed as of VC v3.70 and VCSU v1.7.0. The following table describes 
the circumstances in which downgrading VC firmware requires deletion of the domain. 
Upgrade to and 
downgrade from 
VC 1.xx  VC 2.xx  VC 3.0x  VC 
3.10-3.1
5 
VC 
3.17-3.60 
VC 
3.70-3.75 
VC 
4.01-4.10 
VC 1.xx 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
VC 2.xx 
—  Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
VC 3.0x 
—  —  Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
VC 3.10-3.15 
— 
— 
— 
Delete 
domain 
Delete 
domain 
Delete 
domain 
Delete 
domain 
VC 3.17-3.60 
—  —  —  —  Delete 
domain 
Firmware 
rollback 
Firmware 
rollback 
VC 3.70-3.75 
—  —  —  —  —  —  Firmware 
rollback 
Domain deletion is not required when a firmware downgrade is performed to a firmware version that existed 
prior to the firmware upgrade. However, if no previous firmware upgrade has been performed, 
downgrading without domain deletion is not allowed. When attempting a firmware downgrade, consider 
the following: 
•  Multiple, consecutive firmware downgrades are not supported. 
•  A same version upgrade does not prevent a future downgrade if you decide to downgrade to the 
previous version in the future. 
•  You can perform a firmware downgrade only to a version that was installed on the primary VC module 
prior to the upgrade. 










