Enterprise Vault and Discovery Acclerator upgrade path
We're currently running EV 8.0 sp3 and DA 8.0 sp3. Our target version is 10.1.13 as we plan on upgrading to Exchange 2013 in the near future.
I think I've figured out in which order these upgrades...
So first of all, like idaman22 posted, you can do the following upgrade paths
1. DA8 SP3 -> DA8 SP5
2. EV8 SP3 -> EV9 SP4
3. EV9 SP4 -> EV10 SP3
4. DA8 SP5 -> DA10 SP3
Then install the EV 10 SP3 API or the EV 10 SP3 binaries on the DA Server to make sure its all at the current version.
As for the license, you can use the current license to run EV/DA 10 SP3, however you will be out of compliance. Your best bet is to contact symantec and see why the EV10 Licenses aren't available to you.
