RHEV additional licenses
Hi All,
We are planning to use RHEL hosts for RHEV (instead of RHEV-H) with FC storage. My question would be: Do we need to buy additional Add-ons for the hosts like Resilient storage or High Availability if we want to use them only in RHEV?
Thanks and regards,
Balazs
Responses
No, you don't need any additional addons to run RHEL as hypervisor for RHEV. RHEV should be able to use RHEL6 as hypervisor, with FC storage directly. If you want to host your VMs on GFS2 (or IBM GPFS), I would expect you need separate licenses for that..
I tried using RHEL hypervisors when we first tested RHEV, and got into problems with our local configuration of iptables, sudo, etc.. and quickly decided that the thin hypervisors was a much better option (for us). It seemed to easy to break the thick hypervisor by normal system administration tasks..
Lack of automation of customizations felt strange at first, but there's not much you should need to customize, and in the end I think having a stripped down image is a large win. To configure your syslog settings you only need to log in to the hypervisor after installation, change the rsyslog.conf, and run "persist rsyslog.conf" to have the change persist over reboot. IMHO Red Hat should be providing functioning multipath.conf for the supported hardware, so you *shouldn't* need to customize it..
For running unlimited number of virtual machines on two thick hypervisor, my understanding is that you'll need one RHEV license per cpu-socket, plus one RHEL subscription with unlimited guests per physical host. You woun't get away with RHEL+1guest on a host unless you really intend to only run one guest there...
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