В последних версиях прошивок для MSA P2000G3 функция VAAI реализована без необходимости установки плагина на гипервизор, по этой причине этот плагин и удален из сборок ESXi от HP:
https://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c03831335-2&docLocale=en_US
HP MSA VAAI Plug-in: important note for ESX environments
Beginning with the TS251R004 firmware release, the HP MSA VAAI Plug-in is no longer supported.
The HP MSA controller firmware now uses T10 compliance in an ESX Environment.
In order to properly upgrade your ESX Environment, perform the following actions:
1. Determine whether your ESXi/ESX 5.x host has the HP MSA VAAI Plug-in installed.
2. Disable the HP MSA VAAI Plug-in.
3. Remove the VAAI vSphere Installation Bundle (VIB).
4. Remove all claim-rules associated with the HP MSA VAAI Plug-in.
For complete instructions on how to ensure that your ESXi/ESX5.x host is ready for upgrading to
TS251R004, refer to http://www.hp.com/support/p2000G3msa/troubleshooting.
NOTE: Failure to correctly remove the HP MSA VAAI Plug-in and associated claim-rules will result
in degraded performance and possible loss of access to datastores.
Если плагин уже установлен, то вот инструкция по его корректному удалению: