I'm looking for a Best Practice when upgrading my SAN.
Starting from 6.4.X i will update to 7.0.X , then update to 7.1.X and finally update to 7.2.1c1.
I will update first FABRICA, a few days later FABRICB.
Unclear to me is if i should:
1. update alle Switches within one FABRIC from version 6.4X -> 7.0X, then update all Switches within the FABRIC from 7.0.X to 7.1X and then update all Switches within the FABRIC from 7.1X to 7.2.1c1
or if i should
2. update one Switch after the other within one FABRIC from version 6.4X to 7.0X to 7.1X and finally to 7.2.1c1.
( means update first Switch to target version and start over with next switch within that FABRIC)
Thanks for your support
I would go for option 1.- so that the FOS version difference during the upgrade is minimal.