i need your advice on how to go about upgrading the following MARS boxes below to the latest 4.2.8 version.
do I need to do this upgrade:
product version: 4.2.6 (2458) -> 4.2.7 -> 4.2.8
product version: 4.2.4 (2428) -> 4.2.5 -> 4.2.6 -> 4.2.7 -> 4.2.8
product version: 4.2.1 (2249) -> 4.2.2 -> 4.2.3 -> 4.2.4 -> 4.2.5 -> 4.26 -> 4.2.7 -> 4.2.8 (i understand to upgrade a 4.2.2 -> 4.2.3 will take about 1.6Gb)
Do I have to do this? Is there any other way to straight away upgrade those version to 4.2.8?
Lastly, I am planning to update the boxes remotely since I'm not geographically within reach of MARS boxes. I'm planning configure a internal upgrade server of this setting.
Would you suggest this type of setup? Is this really effective? Or do I need an on-site engineer to do the updates?