<![CDATA[HA Operation Would Break Failover Plan]]>I got my environment back up and running. Reloaded all 3 hosts, wiped the drives, rebuilt the XOSTOR, and enabled HA. I built a simple Debian 12 VM on one of the hosts using the XOSTOR. But when I try to enable HA in the advance options tab, I get the output I've posted below. What am I doing wrong now? 😐

vm.set
{
  "high_availability": "restart",
  "id": "62dde87b-5dbf-119f-07aa-94434ca348b3"
}
{
  "code": "HA_OPERATION_WOULD_BREAK_FAILOVER_PLAN",
  "params": [],
  "call": {
    "method": "VM.set_ha_restart_priority",
    "params": [
      "OpaqueRef:207f8ee7-3b24-405f-a021-0a7a35b3a7d5",
      "restart"
    ]
  },
  "message": "HA_OPERATION_WOULD_BREAK_FAILOVER_PLAN()",
  "name": "XapiError",
  "stack": "XapiError: HA_OPERATION_WOULD_BREAK_FAILOVER_PLAN()
    at Function.wrap (file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/_XapiError.mjs:16:12)
    at file:///usr/local/lib/node_modules/xo-server/node_modules/xen-api/transports/json-rpc.mjs:35:21
    at runNextTicks (node:internal/process/task_queues:60:5)
    at processImmediate (node:internal/timers:447:9)
    at process.callbackTrampoline (node:internal/async_hooks:130:17)"
}
]]>https://xcp-ng.org/forum/topic/8395/ha-operation-would-break-failover-planRSS for NodeWed, 17 Jun 2026 03:31:47 GMTFri, 16 Feb 2024 21:19:49 GMT60<![CDATA[Reply to HA Operation Would Break Failover Plan on Mon, 06 May 2024 12:42:59 GMT]]>@Danp said in HA Operation Would Break Failover Plan:

xe pool-ha-compute-max-host-failures-to-tolerate

It returns 1.:
[13:34 log]# xe pool-ha-compute-max-host-failures-to-tolerate
1

]]>https://xcp-ng.org/forum/post/76918https://xcp-ng.org/forum/post/76918Mon, 06 May 2024 12:42:59 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Mon, 06 May 2024 11:56:40 GMT]]>@arc1 What does xe pool-ha-compute-max-host-failures-to-tolerate return?

]]>https://xcp-ng.org/forum/post/76917https://xcp-ng.org/forum/post/76917Mon, 06 May 2024 11:56:40 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Mon, 06 May 2024 11:51:22 GMT]]>Hi,
I'm getting same error - HA_OPERATION_WOULD_BREAK_FAILOVER_PLAN() - when I try to put host in maintenance mode.
I have 3 nodes in pool and I set xe pool-ha-compute-max-host-failures-to-tolerate to 1.
In error log I'm not able to find why causes this error.
Any ideas? Tools are installed on all VMs.

]]>https://xcp-ng.org/forum/post/76916https://xcp-ng.org/forum/post/76916Mon, 06 May 2024 11:51:22 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:48:16 GMT]]>Don't worry. The error message was not great. Time to enjoy the week-end 🙂

]]>https://xcp-ng.org/forum/post/71502https://xcp-ng.org/forum/post/71502Fri, 16 Feb 2024 21:48:16 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:45:55 GMT]]>@olivierlambert Correct Sir. I apologize for wasting your time.

]]>https://xcp-ng.org/forum/post/71501https://xcp-ng.org/forum/post/71501Fri, 16 Feb 2024 21:45:55 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:44:30 GMT]]>So the error message was not great. It worked a soon you got tools installed in the VM?

]]>https://xcp-ng.org/forum/post/71500https://xcp-ng.org/forum/post/71500Fri, 16 Feb 2024 21:44:30 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:43:43 GMT]]>It's been a long week. I have wasted your time. I never installed the guest tools.../facepalm

EDIT
I realized it right after I ran that command. HA is now enabled.

]]>https://xcp-ng.org/forum/post/71499https://xcp-ng.org/forum/post/71499Fri, 16 Feb 2024 21:43:43 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:42:18 GMT]]>Hmm that's probably the issue 🤔

Can you do xe pool-param-set ha-host-failures-to-tolerate=2 uuid=pool-uuid and then retry to enable HA on your VM?

]]>https://xcp-ng.org/forum/post/71498https://xcp-ng.org/forum/post/71498Fri, 16 Feb 2024 21:42:18 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:41:09 GMT]]>@olivierlambert 3 good Sir.

]]>https://xcp-ng.org/forum/post/71497https://xcp-ng.org/forum/post/71497Fri, 16 Feb 2024 21:41:09 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:39:36 GMT]]>Can you do a xe pool-ha-compute-max-host-failures-to-tolerate please?

]]>https://xcp-ng.org/forum/post/71496https://xcp-ng.org/forum/post/71496Fri, 16 Feb 2024 21:39:36 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:34:17 GMT]]>@olivierlambert

xe pool-ha-enable heartbeat-sr-uuids=<XOSTOR UUID>

I ran this on the pool master.

]]>https://xcp-ng.org/forum/post/71495https://xcp-ng.org/forum/post/71495Fri, 16 Feb 2024 21:34:17 GMT<![CDATA[Reply to HA Operation Would Break Failover Plan on Fri, 16 Feb 2024 21:31:43 GMT]]>So you have HA enabled on the pool, right? How did you enabled in the first place? (the command used)

]]>https://xcp-ng.org/forum/post/71494https://xcp-ng.org/forum/post/71494Fri, 16 Feb 2024 21:31:43 GMT