Ok, I really need time to place this on the KB but I got this from the engineers on a rough draft. I might have to make some modification but wanted to fire this off just to get it going.

Shon - I might be able to test this with the VMware server that I have but if not can you test for me?

Maybe something in the release notes that volume replication/failover will not work with these versions with this upgrade...

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How to update your DSS V6 with Auto Failover.

It is absolutely imperative to verify that both of the DSS V6 is up to a version that allows this and it is highly recommend to stop the Auto Failover service for the updates until officially noted.

If you wish to proceed regardless of our recommendation to shut down the service then proceed with the following:

1) Please save all settings in the Maint. > Misc. and take all options.
2) stop the secondary system,
3) update the secondary system to new version,
4) start the secondary system,
5) wait for replication to be consistent,
6) start manual failover,
7) stop the primary system,
8) upgrade the primary system,
9) start the primary system,
10) wait for replication to be consistent,
11) start failback.

(This is the part - I need to verify with ESX.)

This should not drop any data and all dropped connections should automatically reconnect.