OCPBUGS-17663: add admonition about multipathing

Author: jldohmann

modules/troubleshooting-enabling-kdump.adoc

@@ -35,6 +35,11 @@ For details on configuring the `kdump` service, see the comments in `/etc/syscon
 ifdef::openshift-enterprise[]
 Also refer to the link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/managing_monitoring_and_updating_the_kernel/configuring-kdump-on-the-command-line_managing-monitoring-and-updating-the-kernel#configuring-the-kdump-target_configuring-kdump-on-the-command-line[RHEL kdump documentation] for further information on configuring the dump target.
 endif::[]
++
+[IMPORTANT]
+====
+If you have multipathing enabled on your primary disk, the dump target must be either an NFS or SSH server and you must exclude the multipath module from your `/etc/kdump.conf` configuration file.
+====
 
 . Enable the `kdump` systemd service.
 +