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Reinstalling the required V-Series license after revert or downgrade

The licensing scheme for V-Series systems changed in Data ONTAP 8.2. Data ONTAP 8.2 and later requires the V_StorageAttach license package for V-Series systems to be able to access LUNs on storage arrays. Depending on the type of reversion you do, you might need to install the v-series license key for a prior release.

A license key is required for each V-Series system being reverted or downgraded. A V-Series system reboots after 72 hours if the license is not installed.

If... Then the V-Series license requirement is...
The V-Series system was upgraded to Data ONTAP 8.2 from the 8.1.x release family and you want to revert to a release in the 8.1.x release family again You do not have to install the V-Series license for the release to which the system is being reverted. Data ONTAP remembers the V-Series license from when it was upgraded from 8.1.x to 8.2; Data ONTAP reinstalls those licenses when Data ONTAP is downgraded to 8.1.x.
Data ONTAP 8.2 is the first release of Data ONTAP installed on the system and you want to revert to a release in the 8.1.x release family You must manually install the license key for V-Series systems that is supported for the release to which the system is being reverted. Contact your sales representative to obtain the appropriate license key for your system and release.
You want to downgrade the system from Data ONTAP 8.2.x to an earlier release in the 8.2 release family You do not have to install the V_StorageAttach license package; Data ONTAP remembers the appropriate license for the release family.

For information about how to install licenses, see the Data ONTAP System Administration Guide for 7-Mode.