topic Re: HA failover configuration in 7mode Simulator. in Simulator Discussions

HA failover configuration in 7mode Simulator.

Manoj_Rohilla — Thu, 05 Jun 2025 04:17:46 GMT

Hi All,

Can someone help me in creating HA configuration in 7mode Simulator.

Thanks

Re: HA failover configuration in 7mode Simulator.

aborzenkov — Fri, 15 May 2015 14:03:02 GMT

It is possible only in 7.x version (not sure if it is still available). 8.x version does not support HA pair anymore.

Re: HA failover configuration in 7mode Simulator.

shatfield — Fri, 15 May 2015 14:59:08 GMT

Its possible, its just not supported, its not documented, and its extremely complex to configure.

Re: HA failover configuration in 7mode Simulator.

aborzenkov — Sat, 16 May 2015 07:55:36 GMT

Do you have a link to description how to do it?

Re: HA failover configuration in 7mode Simulator.

shatfield — Sun, 17 May 2015 05:45:22 GMT

No documentation that I could find. To get it working I had to solve a few puzzles. How to make NVRam persist accross reboots, how to get 2 VMs shared access to the simdisks, and how to get NVRam mirroring working accross nodes. More accurately, I had to figure out how they solved them. Ultimately it involved moving the simdisks to an nfs share, a number of settings in the vloader, and using the VMCI bus to simulate RDMA. Its a complex config, and it only works on certain versions of VMware.

Re: HA failover configuration in 7mode Simulator.

aborzenkov — Sun, 17 May 2015 06:52:09 GMT

Wow! Hat off ... Care to document it (blog or similar)?

Re: HA failover configuration in 7mode Simulator.

shatfield — Mon, 18 May 2015 20:22:12 GMT

That could be interesting. I don't run a blog though. Maybe I should start.

It would probably take a series of posts. To get through it you need an ESX server, an NFS server, and a pretty good comfort level in the systemshell.

Re: HA failover configuration in 7mode Simulator.

aborzenkov — Tue, 19 May 2015 06:15:21 GMT

If you come around to doing it, please post a note here. Thank you!