While discussing options to upgrade SFHA cluster (standard, phased, rolling), the topic of "In-Family" upgrade was mentioned. I have never heard of this, so want to ask if anyone has experience with In-Family upgrade ?
The concept is that In-Family upgrades are very minor, so the protocol versions remain compatible before and after upgrade, allowing a mix of pre and post upgrade nodes to join the same cluster. Thus eliminating the need for more complex "phased" and "rolling" upgrades documented in the SFHA Installation Guide.
In this particular case the existing version is SFHA 5.1 SP1 RP1 and the upgrade version will be SFHA 5.1 SP1 RP4. Would that be considered an In-Family upgrade, or would the protocol versions be incompatible and therefore require a phased or rolling upgrade ?
Thank You,
Ken W