i have 8 node cluster with HA and DRS enabled out of 1 esxi5.1 host and 7 esxi 5.5 host now i am going to all host to esxi6.0 what is the procedure should i follow.
I am going to upgrade all the host using customized bundle packgae using dell drac /ILO console manually.
Let me know how i can achieve this activity.
you check to vSphere 6 upgrade Checklist and Requirements.
1. first upgrade your vCenter server 6.0.
2. Upgrade esxi 5.1 to 5.5 u2 and upgrade 6.0 to better. @
3. upgrade the Esxi host one by one.