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DescriptionAravind Mahadevan
2023-07-10 18:40:09 UTC
Description of problem:
We would like to know if HA pacemaker solution is supported on RHEL 9.
SQL Server Setting up AG cluster document currently has RHEL 7 and RHEL 8 details for configuring pacemaker https://learn.microsoft.com/en-us/sql/linux/sql-server-linux-availability-group-cluster-pacemaker?view=sql-server-ver16&tabs=rhel
Is HA pacemaker solution supported on RHEL 9 ?
Version-Release number of selected component (if applicable):
How reproducible:
Steps to Reproduce:
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Actual results:
Expected results:
Additional info:
Hi,
Yes, the RHEL High Availability Add-On (including Pacemaker) is supported for RHEL 9. It is backward compatible with the version in RHEL 8, and the steps for configuring it should be nearly identical.
Probably the most noticeable change is that in status output, "Promoted" and "Unpromoted" are now displayed as roles instead of "Master" and "Slave" for promotable clones.
Comment 2Aravind Mahadevan
2023-07-13 14:00:24 UTC
Hello Ken, Thanks for your inputs.
Could you please share the commands for configuration as well, and is it supported on pcs or crm ?
Thanks,
Aravind
(In reply to Ken Gaillot from comment #3)
> (In reply to Aravind Mahadevan from comment #2)
> > Hello Ken, Thanks for your inputs.
> > Could you please share the commands for configuration as well, and is it
> > supported on pcs or crm ?
> >
> > Thanks,
> > Aravind
>
> Hi,
>
> RHEL provides pcs:
>
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/
> html/configuring_and_managing_high_availability_clusters/assembly_overview-
> of-high-availability-configuring-and-managing-high-availability-clusters
>
> The upstream change log lists the key differences between pcs 0.9 in RHEL 8
> and pcs 0.10 in 9:
>
> https://github.com/ClusterLabs/pcs/blob/main/CHANGELOG.md#0101---2018-11-23
Actually, pcs 0.10 is in RHEL 8 and pcs 0.11 is in RHEL 9. There are not as
many differences between pcs 0.10 and pcs 0.11. Most of the changes are in
the output of some commands. See upstream changelog (most important are
removed and changed sections) for full list of changes:
https://github.com/ClusterLabs/pcs/blob/main/CHANGELOG.md#0111---2021-11-30