Hello,
Thank you for your reply.
Yes indeed, we have 4 nodes on each 3PAR, and everytime we applied last critical patches like P15,P21, and even the famous "P18"
we never encountered disconnection between hosts and Datastores(vv 3PAR).
i suppose applying an upgrade MU is the same method than Patches, one node after one.
Just an another question:
What do you think about one of these recommandations mentionned in the checklist sended by the support ?
"Mandatory Pre-Upgrade Recommendations for a successful upgrade:
Host disconnects due to ATS timeout while running VMware vSphere 5.5 Update 2 and Later
Customer Advisory
https://support.hpe.com/hpsc/doc/public ... =c05228694i checked on our ESXi's, and i don't see any error messages as mentionned in this communication, do you think it's enough to validate the check ? i am not sure.
Thanks for your time.
Speedypizz