HP StorageWorks Enterprise Virtual Array 3000/5000 updating product software guide (VCS 3.110) (5697-7959, February 2009)

4 Downgra ding the Enterprise
Virtual Array
This chapter contains the information about downgrading the product software on your storage system to
a previous version. Please read the instructions completely before you begin the procedure.
Downgrading the Enterprise Virtual Array to 3.028
You can downgrade an Enterprise Virtual Array from VCS 3.110 to 3.028 if you do an offline downgrade.
That is, there can be no I/O from the applications on the host servers.
NOTE:
Before you begin the downgrade, you must obtain the file containing the 3.028 controller firmware
from HP Services.
If you are downgrading the Enterprise Virtual Array from VCS 3.110 to 3.028, ensure that your system
configuration does not contain any new components or structures that are not supported in the VCS 3.028
version. If the storage system contains unsupported components or data structures, remove these data
structures before you downgrade to VCS 3.028.
If you are running HP Continuous Access EVA, dissolve all DR groups, which can be manually recreated
after the downgrade is complete.
Estimated time to compl ete: 15 minutes per storage system
To downgrade the Enterprise Virtual Array system software from version VCS 3.110 to version 3.028,
perform the following steps:
1. Start HP Command View EVA.
2. Stop all applications running on the host machines that have access to the storage system you
are downgrading. After you have completed the storage system software downgrade, you can
start the applications on the host machines.
3. Select the storage system you wish to downgrade.
4. Click Code load.
Aconfirmation message is displayed.
5. Click OK.
TheCodeLoadStorageSystem—Page1windowopens
6. Click Browse and select the file containing version 3.028 of the storage system software.
7. Click Next Step.
TheCodeLoadStorageSystem—Page2windowopens.
8. Click Next Step.
Aconfirmation message is displayed.
9. Click OK.
The new storage system software is loa ded onto the controllers, and the firmware on the associated
Fibre Channel drive enclosures is modified.
TheCodeLoadStorageSystem—Page3windowopens. Thecontrollersrestart.
HP StorageWorks Enterprise Virtual Array 3000/5000 updating product software guide (VCS 3.110)
67