Ipmitool version (apache#165)

* Added possible workaround for Host HA issues

* formatting

* Update hosts.rst

Co-authored-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Author: Spaceman1984

source/adminguide/hosts.rst

@@ -642,6 +642,11 @@ power management actions such as on, off, reset, cycle, soft and status.
 If a host is in maintenance mode, Root admins are still allowed to perform
 power management actions but in the UI a warning is displayed.
 
+.. note::
+
+  IPMI based out-of-band management and Host HA may not work on Centos 8 using the default ipmitool version -
+  Installing ipmitool-1.8.18-12.el8_1.x86_64.rpm may solve the problem. Make sure to test the ipmitool on your physical equipment before using the IPMI-based out-of-band management and Host HA features.
+
 .. _host-security:
 
 Security