[ClusterLabs] Which fence agent is needed for an Apache web server cluster?

[Reid Wahl]

On Sat, Mar 27, 2021 at 1:13 PM Reid Wahl <nwahl at redhat.com> wrote:

> Your hardware or virtualization platform largely determines which fence
> agents are available to you.
>

By "available" here I mean "which fence agents will work to fence a node in
your cluster." You can install any fence agents you want, but only a small
subset are viable options to fence a node. That depends on your platform.

For example, fence_ipmilan works with HP ProLiant, Dell PowerEdge, and any
> other platform that offers power management via IPMI over LAN.
>
> sbd (optionally combined with fence_sbd) is a great option if you're on a
> platform that offers a hardware watchdog device. Notably, VMware and the
> major public cloud providers don't currently offer hardware watchdog
> devices.
>
> The fence-agents-all package installs most of te available fence agents as
> dependencies. IIRC, a few agents (e.g., fence-agents-aws) aren't included
> when you install fence-agents-all.
>

By "available" here I mean "available to install."


> On Sat, Mar 27, 2021 at 7:53 AM Jason Long <hack3rcon at yahoo.com> wrote:
>
>> Hello,
>> How To Configure High-Availability Cluster on CentOS 7 / RHEL 7 tutorial
>> In "
>> https://www.itzgeek.com/how-tos/linux/centos-how-tos/configure-high-avaliablity-cluster-on-centos-7-rhel-7.html"
>> address, used below command:
>>
>> # yum install pcs fence-agents-all -y
>>
>> Is "fence-agents-all" package needed?
>>
>> Thank you.
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>
> --
> Regards,
>
> Reid Wahl, RHCA
> Senior Software Maintenance Engineer, Red Hat
> CEE - Platform Support Delivery - ClusterHA
>


-- 
Regards,

Reid Wahl, RHCA
Senior Software Maintenance Engineer, Red Hat
CEE - Platform Support Delivery - ClusterHA
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