PrashantGirenna
Contributor
Contributor

VMware HA 5.1

Hello Experts,

I have some topics to be discussed regarding HA. Basically I have below questions about HA

1). How does HA works in mixed ESxi cluster environment, Say I have 4.1 ESxi and 5.0 ESxi clustered together. As 4.1 uses AAM and 5.1 uses FDM , which agent will be used in this cluster? Does Master/Slave method or Primary/Slave method is used?

2).What has changed with 5.1 and what has not changed with 5.1 with regards to HA in VMWare when compared with 4.1.

Thanks,

-Prashant Girennavar

5 Replies
tanmay_26
Contributor
Contributor

Anjani_Kumar
Commander
Commander

1) In your Scenario the FDM will apply . All the Hosts will be upgraded with the latest HA Agents.

2) The host agent is only changed in 5.1 and all the other below hosts nothing else will be imapcted.

Please consider marking this answer "correct" or "helpful" if you found it useful. Anjani Kumar | VMware vExpert 2014-2015-2016 | Infrastructure Specialist Twitter : @anjaniyadav85 Website : http://www.Vmwareminds.com
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vThinkBeyondVM
VMware Employee
VMware Employee

These 2 blog are must to read for you in order to clear your doubt:

1. Mixing ESX/ESXi Versions in an HA/DRS Cluster | VMware vSphere Blog - VMware Blogs

2. FDM in mixed ESX and vSphere clusters - frankdenneman.nl

If it is useful, plz mark answer as correct or helpful. ---------------------------------------------------------------- Thanks & Regards Vikas, VCP50, MCTS on AD, SCJP6.0. http://vThinkBeyondVM.com ----------------------------------------------------------------- Disclaimer: Any views or opinions expressed here are strictly my own. I am solely responsible for all content published here. Content published here is not read, reviewed or approved in advance by VMware and does not necessarily represent or reflect the views or opinions of VMware.
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pg8170
Contributor
Contributor

Thanks for the replay.

I am just curious, what has changed in 5.1 HA when compared with 4.1 HA. Does the working remains the same? its only the agent which got changed?

Thanks,

-Prashant Girennavar.

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tanmay_26
Contributor
Contributor

vSphere 5.0 comes a new HA architecture-


This should answer all of your questions:


http://www.yellow-bricks.com/vmware-high-availability-deepdiv/

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