Skip to content

host-HA vs VM-HA support #324

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
DaanHoogland merged 2 commits into from
Jun 21, 2023
Merged

host-HA vs VM-HA support #324

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
3116d07
note on host-HA support
DaanHoogland Jun 13, 2023
fb3e2b9
more warning
DaanHoogland Jun 15, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 12 additions & 0 deletions source/adminguide/reliability.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -151,6 +151,13 @@ Host in the same cluster.
HA features work with iSCSI or NFS primary storage. HA with local
storage is not supported.

.. note::
HA-Enabled VMs will be restarted when it is detected that the VM is
crashed beyond a shadow of a doubt. When the host it is running on is
unreachable, either because of network issue or because it is crashed,
CloudStack can not be sure the disk image of the VM is not still being
accessed and will not restart the VM.


Dedicated HA Hosts
------------------
Expand Down Expand Up @@ -186,6 +193,11 @@ that you want to dedicate to HA-enabled VMs.
HA-Enabled Hosts
----------------

.. note::
This feature is only applicable to KVM clusters. It is not supported
on for instance VMware or Xen. For those hypervisor types, the Host HA
is left to the VMware-cluster or Xen-pool respectively.

The user can specify a host as HA-enabled, In the event of a host
failure, attemps will be made to recover the failed host by first
issuing some OOBM commands. If the host recovery fails the host will be
Expand Down