how long does it take to upgrade a VMware view connection server?

I have a small VDI set up on a VM View server hosting 7 VDI's.  It is currently running version 5.1 and I need to upgrade to at least version 6.1.1 as there are some new features that we would like to use.

How long should the upgrade process take?  I have been advised by a support team that at least 2.5 days will be needed and we will also need to upgrade the other VM install the hosts our server infrastructure in the process.  Can anyone give some guidance on how accurate this is as I am quite new to this area and just curious if the support team are trying to pad the job out.  Last time we upgraded the hosts it took around 2 hours?
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Nick_DAsked:
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Seth SimmonsSr. Systems AdministratorCommented:
a couple hours sounds more reasonable though it depends on your environment

here is an article describing the process (though a little dated, procedure is generally the same)...

Upgrading VMware Horizon View with Zero Downtime
http://blogs.vmware.com/consulting/2015/02/upgrading-vmware-horizon-view-zero-downtime.html

any reason why not to go to horizon 7?
i actually just upgraded from 7.0.1 to 7.0.2 today
did both connection servers (separate internal and external with 2-factor authentication), then the security server then paired them (with the external server)
updated the view agent in the golden image and that's that

what version of vsphere are you running?
again, just the horizon components don't take long but could be much longer if your vsphere environment requires an upgrade to be compatible

if you have the hardware resources, you could setup a new horizon environment as a test before putting in production.  this is what we did.  folks still use horizon 6.2 while preparing horizon 7 environment which we plan to switch to very soon
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Nick_DAuthor Commented:
Hi Seth

Thanks for the information.  It is quite a small set up which services a remote office, it doesn't really have the capacity to set up a test environment which makes it slightly more challenging.  We need to go to at least version 6.1 as we need some of the new features in there and we can keep the current 5.1 vcentre as it is compatible.  Not sure if that will still be the case if we go to 7.  I will take a look.

Thanks again,
Nick
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