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#Citrix #StoreFront subscription database replication, #GSLB, #NetScaler

January 13, 2014 Leave a comment

Ok, so we’ve all started to use StoreFront (or have U?) and find out that there are A LOT of things that you have to do in order to get it to work as you most probably want it to.

This post is more around how you ensure that the StoreFront architecture supports an enterprise with multiple sites while still having a concistent end-user experience.

Just imagine that you’ve built your architecture out in a true high availability manner with global server load balancing across all products used in the stack to deliver your Windows apps and desktops to your end-users. It may look something similar to this:

overall_storefront_nsg_GSLB_architecture

In this view you can see that we’ve setup GSLB to ensure that external (Internet) connected users  and devices are being connected to a NetScaler Gateway vServer in either London or Miami, and from there the NetScaler and the session profile that communicates with StoreFront (SF1 and 2 in each site) is also load balanced using GSLB to ensure high availability. So everything seems good, right! But no… consider that you as an end-user is being connected to the Miami site and that StoreFront group that has a subscription database containing all the apps and desktops etc. that you have selected and added to your workspace.  You will see all these icons by default now when you login to Miami, but you will not see them in the case Miami goes down for some reason or if you travel to London and then gets connected to that StoreFront group as I try to show by this picture:

No-StoreFront-Replication

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