Firstly, I'm no CP expert, far from it. I've inherited a site with 13 CP appliances from 1470's to 3K and 5K devices. They are all managed via an R80.20 ESXi SMS. The 1470's are running a very old software version, and I'm pretty keen to get these to the lastest R77.20.87.
For an unknown reason, every blade is enabled and running. 2 devices are heavily utilised with large amounts of traffic, IPS/IDS, AB, AS etc....including several VPN's to remote sites and routing enabled!
Just putting this out there to see if there are any "gotchas" in performing the upgrades. I plan on using the WEB GUi to undertake these opposed the SMS / Smart Update.
Thanks in advance.