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P4000 Upgrade if newer VSS and MPIO are installed?

Occasional Visitor

P4000 Upgrade if newer VSS and MPIO are installed?


i want to upgrade our Lefthand 4000 Storage.

I installed the new CMC on a Win2008R2 System. Before upgrading, the Program ask for a specific Version of "P4000 VSS Provider" and "P4000 DSM for MPIO".


There are newer Versions installed. See attachment.

VSS '' should be currently installed. The installed Version is

DSM for MultipathIO '' should be currently installed, The installed Version is


So i have 2 Questions:

Is it possible to upgrade despite the version differences?


Is the storage during the upgrade available?