Rolling update Hybris 5.1

Hi,

we are running Hybris v 5.1.1.0.

We are trying to set up cluster to have uptime 100%.

We have achived that and everything is fine, except when we want to deploy update. If we run update on node1, node2 also display maintenance page.

I have found that this can be done by creating new type system: https://wiki.hybris.com/pages/viewpage.action?spaceKey=release5&title=Rolling+Update+on+the+Cluster

However this works only on Hybris v 5.3.0+.

How can we run update on node 1 so node 2 can be "online" in Hybris v 5.1.1.0?

Thank you!